24R0010_35 05 40.14 28_Amend-0005.pdf

LSR Navigation Lock Tainter Valve System Upgrades W912EF24R0010 LSRNLTAINTERVLVS Amend-0005

SECTION TABLE OF CONTENTS

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

SECTION 35 05 40.14 28

HYDRAULIC POWER SYSTEMS FOR CIVIL WORKS STRUCTURES

PART 1 GENERAL

1.1 SUMMARY

1.2 REFERENCES

1.3 SUBMITTALS

1.4 DESIGN AND PERFORMANCE REQUIREMENTS

1.4.1 Definitions

1.4.2 System Summary

1.4.3 Design Parameters

1.4.4 Allowable Stresses

1.4.4.1 Allowable Stresses

1.4.4.2 Hydraulic Cylinders

1.4.4.3 Stress Concentration Factors

1.4.5 Corrosivity Environment Category

1.4.6 Connections

1.4.6.1 Shop Connections

1.4.6.2 Welded Connections

1.4.6.3 Structural Bolted Connections

1.5 QUALITY ASSURANCE

1.5.1 General

1.5.2 Erecting Engineer Qualifications

1.5.3 Drawings

1.5.3.1 Hydraulic System Drawings

1.5.3.1.1 Shop Assembly Drawings

1.5.3.1.2 Fabrication Drawings

1.5.3.2 Shop Drawings

1.5.3.3 Hydraulic Cylinder Drawings

1.5.3.4 Hydraulic Power Unit Drawings

1.5.3.5 Piping Drawings

1.5.3.6 Hydraulic Schematic

1.5.3.7 Electrical Drawings

1.5.3.8 Shop Drawings

1.5.4 Product Data

1.5.5 Calculations

1.6 QUALITY CONTROL

1.7 WARRANTY

PART 2 PRODUCTS

2.1 MATERIALS AND MECHANICAL EQUIPMENT

2.1.1 General

2.1.2 Standard Products

2.2 HYDRAULIC FLUID

2.3 HYDRAULIC CYLINDERS

2.3.1 General Design and Configuration

2.3.2 End Configurations

SECTION 35 05 40.14 28

2.3.2.1 Rod End

2.3.2.2 Cylinder End

2.3.3 Cylinders

2.3.4 Piston Rods

2.3.4.1 Piston Rod General Requirements

2.3.4.2 Piston Rod Coating Data

2.3.5 Pistons

2.3.6 Seals, O-Rings And Bearing Materials

2.3.6.1 Temperature Ranges

2.3.6.2 Piston Wear Rings

2.3.6.3 O-Ring Seals

2.3.6.4 Rod Wiper/Scraper

2.3.6.5 Piston and Piston Rod Seals

2.3.7 Rod Seal Gland

2.3.8 Lifting Device

2.4 HYDRAULIC POWER UNIT (HPU)

2.4.1 General - HPU

2.4.2 Gauges

2.4.3 Pumps

2.4.4 Pump Motors

2.4.4.1 Motor Winding Heaters

2.4.5 Filters

2.4.6 Access Constraints

2.4.7 Oil Reservoir Tanks

2.4.8 Reservoir Isolator

2.4.9 Magnetic Separators

2.4.10 Low Level Float Switches

2.4.11 Pressure Switches

2.4.12 Pressure Transducers

2.4.13 Oil Level Gage

2.4.14 Sample Port

2.4.15 Hydraulic Power Unit Temperature

2.4.15.1 Thermometer

2.4.15.2 Temperature Sensor

2.4.15.3 Hydraulic High Oil Temperature Alarm Switch

2.4.16 Drip Trays

2.5 PIPING

2.5.1 General - Piping

2.5.2 Pipe

2.5.3 Pipe Fittings

2.5.4 Unions

2.5.5 Expansion Fittings

2.5.6 Piping Vents and Drains

2.6 TUBING

2.6.1 Use of Tubing

2.6.2 Tube

2.6.3 Tube Fittings

2.7 VALVES

2.7.1 General - Valves

2.7.2 In-line Shutoff Valves

2.7.3 Manifold Mounted Shutoff Valves

2.7.4 Spring Loaded Check Valves

2.7.5 Directional Control Valves (Solenoid Operated)

2.7.6 Pressure Relief Valves

2.7.7 Spring Loaded Check Valves

2.7.8 Bleeder Valves

2.7.9 Counterbalance Valve

2.8 INSTRUMENTS AND APPURTENANCES

2.8.1 Pressure Switches

2.8.2 Pressure Snubbers

2.8.3 Pressure Gauges

2.8.4 Low-Pressure Return Filters

2.8.5 Position String Transducer

2.9 FLEXIBLE HOSES

2.9.1 General

2.9.2 Flexible Hose

2.9.3 Flexible Hose Fittings

2.10 PIPE AND TUBING SUPPORTS

2.11 FASTENERS

2.11.1 Carbon Steel Bolts and Nuts

2.11.2 Stainless Steel Bolts and Nuts

2.11.3 Flat Washers

2.11.4 Setscrews

2.11.5 Methods of Securing Fasteners

2.12 NAMEPLATES

2.13 ELECTRICAL EQUIPMENT

2.14 SPECIAL TOOLS

2.15 SPARE PARTS

PART 3 EXECUTION

3.1 EXAMINATION

3.2 FABRICATION

3.2.1 Welding

3.2.2 Metal Work

3.2.3 Painting

3.2.4 Hydraulic Cylinders

3.2.4.1 Cylinder Manufacturers QC Procedures

3.3 SHOP ASSEMBLY AND TESTING

3.3.1 Shop Assembly

3.3.2 Protection During Assembly

3.3.3 Cleaning and Protection During Assembly

3.3.4 Flushing

3.3.5 Shop Testing

3.3.5.1 General - Shop Testing

3.3.5.2 Notification of Shop Testing

3.3.5.3 Cylinder Tests

3.3.5.4 Hydraulic Power Unit Tests

3.3.5.5 Draining of Fluid

3.3.5.6 Shop Testing Plan

3.3.5.7 Shop Testing Report

3.4 SHIPPING, DELIVERY, STORAGE, AND HANDLING

3.4.1 Preparation for shipping

3.4.2 Packaging

3.4.3 Packaging Requirements for Hydraulic Cylinders

3.4.4 Shipping and Storage On-Site

3.4.5 Cylinders Designated for Long Term Storage

3.5 ON-SITE REMOVAL AND INSTALLATION

3.5.1 Sequence Of Work

3.5.2 Removal Procedures

3.5.3 Installation Procedures

3.5.4 Removal Of Existing Equipment

3.5.4.1 Existing Hydraulic Fluid

3.5.4.2 Existing HPU

3.5.4.3 Existing Hydraulic Cylinders

3.5.4.4 Existing Hydraulic Hoses

3.5.5 Installation of New Equipment

3.5.5.1 HPU

SECTION 35 05 40.14 28

G4EDHCMP

Line

G4EDHCMP

Line

3.5.5.2 Hydraulic Cylinders

3.5.5.3 Mounting Support for Manifolds

3.6 IDENTIFICATION OF PIPING AND VALVES

3.7 FILLING AND BLEEDING THE SYSTEM

3.8 ERECTION ENGINEER

3.9 ON-SITE TESTING AND INSPECTION

3.9.1 General

3.9.2 Pressure Testing

3.9.2.1 Pressure Testing Requirements

3.9.2.2 Pressure Testing Plan

3.9.2.3 Pressure Testing Report

3.9.3 Functional Testing

3.9.3.1 General - Functional Testing

3.9.3.2 HPU Functional Testing

3.9.3.3 Functional Testing Plan

3.9.3.4 Functional Test Report

3.9.4 Operational Testing

3.9.4.1 General - Operational Testing

3.9.4.2 Hydraulic System Operational Testing

3.9.4.3 Operational Testing Plan

3.9.4.4 Operational Testing Report

3.9.4.5 Dry Test

3.9.4.6 Lock Rewatering Test

3.9.4.7 Normal Lock Navigation Test

3.9.4.8 Maintenance Test

3.10 CLEAN-UP

3.11 TRAINING

3.11.1 Training Requirements

3.11.2 Training Instructor

3.12 OPERATION AND MAINTENANCE

-- End of Section Table of Contents --

SECTION 35 05 40.14 28

HYDRAULIC POWER SYSTEMS FOR CIVIL WORKS STRUCTURES

PART 1 GENERAL

1.1 SUMMARY

Provide, test (prior to delivery to the worksite), and install the individual hydraulic systems that shall actuate all tainter valves.

The work covered by this SECTION consists of detailed requirements for the design, fabrication, shop assembly, testing, delivery, and installation of the hydraulic power system, including new cylinders, for operation of the tainter valves as specified and as shown.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)

ASME A13.1 (2020) Scheme for the Identification of Piping Systems

ASME B18.6.2 (2020) Square Head Set Screws and Slotted Headless Set Screws (Inch Series)

AMERICAN WELDING SOCIETY (AWS)

AWS D1.1/D1.1M (2020; Errata 1 2021) Structural Welding Code - Steel

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)

ASME B16.1 (2015) Gray Iron Pipe Flanges and Flanged Fittings Classes 25, 125, and 250

ASME B16.11 (2016) Forged Fittings, Socket-Welding and Threaded

ASME B31.1 (2020) Power Piping

ASME B40.100 (2013) Pressure Gauges and Gauge Attachments

ASME BPVC (2010) Boiler and Pressure Vessels Code

ASME BPVC SEC IX (2017; Errata 2018) BPVC Section IX-Welding, Brazing and Fusing Qualifications

ASTM INTERNATIONAL (ASTM)

ASTM A105/A105M (2021) Standard Specification for Carbon Steel Forgings for Piping Applications

ASTM A106/A106M (2019a) Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service

ASTM A108 (2013) Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished

ASTM A182/A182M (2019) Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service

ASTM A193/A193M (2023) Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service and Other Special Purpose Applications

ASTM A194/A194M (2018) Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High-Pressure or High-Temperature Service, or Both

ASTM A216/A216M (2016) Standard Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service

ASTM A234/A234M (2018) Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service

ASTM A266/A266M (2018) Standard Specification for Carbon Steel Forgings for Pressure Vessel Components

ASTM A269/A269M (2015a; R 2019) Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service

ASTM A325 (2014) Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength

ASTM A354 (2017; E 2017; E 2018) Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners

ASTM A516/A516M (2017) Standard Specification for Pressure Vessel Plates, Carbon Steel, for Moderate-and Lower-Temperature Service

ASTM A536 (1984; R 2014) Standard Specification for Ductile Iron Castings

ASTM B505/B505M (2018) Standard Specification for Copper Alloy Continuous Castings

ASTM B584 (2014) Standard Specification for Copper Alloy Sand Castings for General Applications

ASTM C633 (2013; R 2017) Standard Test Method for Adhesion or Cohesion Strength of Thermal Spray Coatings

ASTM D2794 (1993; R 2019) Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)

ASTM D7647 (2010; R 2018) Standard Test Method for Automatic Particle Counting of Lubricating and Hydraulic Fluids Using Dilution Techniques to Eliminate the Contribution of Water and Interfering Soft Particles by Light Extinction

ASTM E1920 (2003; R 2014) Standard Guide for Metallographic Preparation of Thermal Sprayed Coatings

ASTM F844 (2019) Standard Specification for Washers, Steel, Plain (Flat), Unhardened for General Use

ASTM F3125/F3125M (2023) Standard Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions 120 ksi and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile Strength

ASTM G48 (2011; R 2015) Standard Test Methods for Pitting and Crevice Corrosion Resistance of Stainless Steels and Related Alloys by Use of Ferric Chloride Solution

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)

ISO 1219-1 (2012; Amd 1 2016) Fluid Power Systems and Components Graphic Symbols and Circuit Diagrams - Part 1: Graphic Symbols for Conventional Use and Data-Processing Applications

ISO 1219-2 (2012) Fluid Power Systems and Components Graphic Symbols and Circuit Diagrams - Part 2: Circuit Diagrams

ISO 1817 (2015) Rubber, Vulcanized or Thermoplastic

- Determination of the Effect of Liquids - Sixth Edition

ISO 3274 (1996, Corr 1998) Geometrical products Specifications (GPS) - Surface Texture:Profile method - Nominal Characteristics of Contact (Stylus) Instruments - Second Edition

ISO 4287 (1997, Amd 1 2009)Geometrical Product Specifications (GPS) - Surface Texture:

Profile Method - Terms, Definitions and Surface Texture Parameters - First Edition

ISO 4288 (1996, Corr 1 1998)Geometrical Product Specifications (GPS) - Surface Texture:

Profile Method - Rules and Procedures for the Assessment of Surface Texture - Second Edition

ISO 4401 (2005) Hydraulic Fluid Power - Four-port Directional Control Valves - Mounting Surfaces

ISO 4406 (2017) Hydraulic Fluid Power - Fluids - Method for Coding the Level of Contamination by Solid Particles

ISO 4413 (2010) Hydraulic Fluid Power — General Rules and Safety Requirements for Systems and Their Components

ISO 5817 (2014) Welding - Fusion-Welded Joints in Steel, Nickel, Titanium And Their Alloys (Beam Welding Excluded) - Quality Levels For Imperfections - Third Edition

ISO 6507 (2018) Metallic Materials -- Vickers Hardness Test -- Part 1: Test Method - Fourth Edition

ISO 7789 (2007) Hydraulic Fluid Power - Two-, Three-, and Four-port Screw-In Cartridge Valves - Cavities

ISO 9001 (2008; Corr 1 2009) Quality Management Systems- Requirements

ISO 9223 (2012) Corrosion of Metals and Alloys — Corrosivity of Atmospheres — Classification, Determination and Estimation - Second Edition

ISO 13565 (1996, Corr 1998) Geometrical Product Specifications (GPS) - Surface Texture:

Profile Method; Surfaces Having Stratified Functional Properties - Part 1: Filtering and General Measurement Conditions

ISO 15614-7 (2016) Specification and Qualification of Welding Procedures for Metallic Materials

- Welding Procedure Test - Part 7: Overlay Welding - Second Edition

MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS

INDUSTRY (MSS)

MSS SP-58 (2018) Pipe Hangers and Supports - Materials, Design and Manufacture, Selection, Application, and Installation

MSS SP-69 (2003; Notice 2012) Pipe Hangers and Supports - Selection and Application (ANSI Approved American National Standard)

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA ICS 1 (2022) Standard for Industrial Control and Systems: General Requirements

NEMA MG 1 (2018) Motors and Generators

SOCIETY OF AUTOMOTIVE ENGINEERS INTERNATIONAL (SAE)

SAE J514 (2012) Hydraulic Tube Fittings

SAE J517 (2017) Hydraulic Hose

SAE J518-1 (2013) Hydraulic Flanged Tube, Pipe, and Hose Connections, 4-Screw Flange Connection Part 1: 3.5 MPa to 35 MPa (Code 61)

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals having an "I" designation are for information only. A designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Notification Of Shop Testing ; I ME

Shop Testing Plan ; G, ME

Hydraulic Cylinder Packaging Plan ; I, ME

Cylinders Designated For Long Term Storage ; I, ME

Hydraulic Cylinder Shop Testing Plan ; G, ME

Hydraulic Power Unit Shop Testing Plan ; G, ME

Installation Procedures, LGA ; G, ME

Installation Procedures, LMA ; G, ME

Installation Procedures, LLA ; G, ME

Installation Procedures, HLD ; G, ME

Removal Procedures, LGA ; G, ME

Removal Procedures, LMA ; G, ME

Removal Procedures, LLA ; G, ME

Removal Procedures, HLD ; G, ME

Cylinder Manufacturers QC Procedures ; I, ME

On-Site Storage Plan ; I, ME

Pressure Testing Plan, LGA ; G, ME

Pressure Testing Plan, LMA ; G, ME

Pressure Testing Plan, LLA ; G, ME

Pressure Testing Plan, HLD ; G, ME

Functional Testing Plan, LGA ; G, ME

Functional Testing Plan, LMA ; G, ME

Functional Testing Plan, LLA ; G, ME

Functional Testing Plan, HLD ; G, ME

Operational Testing Plan, LGA ; G, ME

Operational Testing Plan, LMA ; G, ME

Operational Testing Plan, LLA ; G, ME

Operational Testing Plan, HLD ; G, ME

Erecting Engineer Qualifications ; I, ME

SD-02 Shop Drawings

Hydraulic System Drawings, LGA ; G, ME

Hydraulic System Drawings, LMA ; G, ME

Hydraulic System Drawings, LLA ; G, ME

Hydraulic System Drawings, HLD ; G, ME

SD-03 Product Data

Electrical Equipment ; G, EE

Design and Performance Requirements ; G, ME

Seals, O-Rings, and Bearing Material ; G, ME

Rod Coating Data ; G, ME

Product Data ; G, ME

Procedures For Cleaning And Flushing ; I, ME

SD-05 Design Data

Hydraulic Hoist Design Verification Calculations, LGA ; G, ME

Hydraulic Hoist Design Verification Calculations, LMA ; G, ME

Hydraulic Hoist Design Verification Calculations, LLA ; G, ME

Hydraulic Hoist Design Verification Calculations, HLD ; G, ME

Packaging Details ; G, ME

Nameplates ; G, ME

Pipe Support Design Calculations, LGA ; G, ME

Pipe Support Design Calculations, LMA ; G, ME

Pipe Support Design Calculations, LLA ; G, ME

Pipe Support Design Calculations, HLD ; G, ME

SD-06 Test Reports

Shop Testing Report ; G, ME

Operational Testing Report, LGA ; G, ME

Operational Testing Report, LMA ; G, ME

Operational Testing Report, LLA ; G, ME

Operational Testing Report, HLD ; G, ME

Functional Test Report, LGA ; G, ME

Functional Test Report, LMA ; G, ME

Functional Test Report, LLA ; G, ME

Functional Test Report, HLD ; G, ME

Pressure Testing Report, LGA ; G, ME

Pressure Testing Report, LMA ; G, ME

Pressure Testing Report, LLA ; G, ME

Pressure Testing Report, HLD ; G, ME

SD-07 Certificates

Erection Engineer ; G, ME

Training Instructor ; G, ME

Hydraulic Fluid Certificate Of Compliance ; G, ME

SD-10 Operation and Maintenance Data

Sample Training Course Materials ; G, ME

Recorded Session ; I, C

SD-11 Closeout Submittals

Warranty ; G, C

1.4 DESIGN AND PERFORMANCE REQUIREMENTS

The Contract drawings indicate the general arrangement of the hydraulic hoist system actuating the tainter valves, clearances required by surrounding structures and other equipment, maximum overall dimensions, and other pertinent features. Finalize and configure the design in accordance with ISO 4413 , and this SECTION.

Contractor must identify design and dimensional changes necessary to satisfy the principal design parameters specified in the paragraph "Design Parameters". Dimensions submitted that differ from those indicated and not otherwise constrained by the Design Parameters and physical limitations of installation are subject to approval. Also submit design computations for all extension of design items.

1.4.1 Definitions

The following terms are used throughout this specification SECTION:

a. High Pressure - That part of the system between the outlet of each pump and the pressure side of the single action gate cylinders, including, but not limited to: All piping between pump outlets, supply distribution header, control manifolds, all piping and hoses connected to the high pressure side of the cylinder, and latching pin mechanism.

b. Low Pressure - That part of the system between the return side of the single action cylinders to the pump inlet, including but not limited to: all piping and hoses between the the return side of the cylinder and the return header, return header piping, oil storage tanks, and pump supply piping

1.4.2 System Summary

The following paragraphs provide a brief narrative of how the hydraulic power system is configured and operated. It is a summary and is not an inclusive description of all features or operating conditions.

The tainter valve hydraulic system operates the tainter valves for the Navigation Locks. Each Navigation Lock has 4 tainter valves. Each tainter valve has a dedicated hydraulic power unit (HPU).

1.4.3 Design Parameters

The hydraulic hoist design parameters are as follows:

a. System Rated Pressure: 3000 psi

b. System Maximum Operating Pressure: 2000 psi

c. Maximum Cylinder Stroke: 13 feet - 9 inches

d. Nominal Cylinder Stroke: 13 feet - 6 inches

e. Cylinder Rod Diameter: 5 inches (approximate. Manufacturer to finalize)

f. Cylinder Inside Diameter: 12 inches (approximate. Manufacturer to finalize)

g. Lowering Flow Rate: To be determined based off cylinder dimensions and speed listed below.

h. Minimum Raising flow rate: 26.2 gpm (based on item f and g may differ depending on cylinder manufacture)

i. Adjustable Raising Speed: 3.75 - 5.4 feet per minute

j. Minimum Pull Force: 154,000 pounds force

k. Minimum Push Force: 110,000 pounds force

No component shall interfere with the removable deck plates on t he t op sur f ace of t he l ock wal l . All components of the hoist equipment must be installed through the existing removable deck plates i n t he t op sur f ace of t he l ock wal l . Al l component s must f i t wi t hi n t he same f oot pr i nt as exi st i ng equi pment . Design all equipment supports to include HPUs, Cylinders and piping in accordance with MSS SP-58 and MSS SP-69

1.4.4 Allowable Stresses

1.4.4.1 Allowable Stresses

For design of items not governed by a referenced code or specified otherwise, use the following allowable stresses:

a. Stresses resulting from forces due to operating pressure of the system: 20 percent of the ultimate tensile strength of the materials involved.

b. Stresses resulting from forces due to the overload pressure during an emergency closure: 75 percent of the yield strength of the materials involved.

1.4.4.2 Hydraulic Cylinders

Design all hydraulic cylinders to withstand a maximum operating pressure of 3000 psi with a factor of safety of 3 based on the ultimate strength of the material AND 2 based on the yield strength of the material. Apply a factor of safety of 3 to the compression load when designing the hydraulic cylinders to resist buckling.

1.4.4.3 Stress Concentration Factors

Use stress concentration factors where applicable. Reduction of allowable stresses to compensate for repeated cycles of loading is not required.

1.4.5 Corrosivity Environment Category

Design hydraulic cylinders, cylinder rods and components to meet the corrosivity category CX in accordance with ISO 9223 to meet anticipated atmospheric environment the cylinders and piston rods will be operating within.

1.4.6 Connections

1.4.6.1 Shop Connections

Design shop connections for assembly by means of welding or by bolting.

1.4.6.2 Welded Connections

a. Design welded connections, for components not subject to being pressurized, in accordance with AWS D1.1/D1.1M except that provisions for repeated stress are not required.

b. Design welds for hydraulic cylinders in accordance with ASME BPVC.

c. Design welds for piping in accordance with ASME B31.1 .

d. U-stamp requirements per ASME BPVC are waived.

1.4.6.3 Structural Bolted Connections

Make structural bolted connections carrying primary loads with ASTM A325 bolts.

1.5 QUALITY ASSURANCE

1.5.1 General

For each system, submit the drawings, product data and calculations (if required) concurrently. Do not procure materials for a system until the drawings, product data, and calculations for that system have been approved.

1.5.2 Erecting Engineer Qualifications

Provide a resume for the on-site erecting engineer with 5 years experience and background in similar installations.

1.5.3 Drawings

1.5.3.1 Hydraulic System Drawings

Submit hydraulic system drawings that include fabrication drawings, hydraulic cylinder drawings, hydraulic power unit drawings, piping drawings, and hydraulic schematic. Submit hydraulic system drawings for each project as follows:

Hydraulic System Drawings, LGA

Hydraulic System Drawings, LMA

Hydraulic System Drawings, LLA

Hydraulic System Drawings, HLD

1.5.3.1.1 Shop Assembly Drawings

Provide shop assembly drawings with details for connecting the adjoining fabricated components in the shop to ensure satisfactory field installation.

1.5.3.1.2 Fabrication Drawings

Where fabrication drawings are required, they must provide the complete details for each component including materials of construction, dimensions, tolerances, machined surface finishes, connections, weld details, and coating requirements. All weld detail callouts must include annotation referencing the appropriate welding procedure specification and notation to differentiate shop welds from field welds.

1.5.3.2 Shop Drawings

Include fabrication, shop assembly, delivery, and field installation drawings in the detailed shop drawings. Detail any component part of fabricated items omitted on the shop drawings. If departures from the contract drawings are deemed necessary by the Contractor, submit details of such departures, including changes in related portions of the project and reasons thereof, with the shop drawings.

1.5.3.3 Hydraulic Cylinder Drawings

Submit detailed assembly drawings for the hydraulic cylinders that show the following:

a. Longitudinal section through the cylinder showing the complete assembly.

b. Installation and connection details of the cylinder to the cylinder support, including lifting procedure via mobile crane.

c. Installation and connection details of the cylinder to the supply and return piping.

d. Fabrication drawings for each component in the hydraulic cylinder.

e. Transportation, Handling and Lifting drawings, including proper support and restraints during shipping and transport as well as instructions to take cylinders from the horizontal-to-vertical position and vertical-to-horizontal position.

1.5.3.4 Hydraulic Power Unit Drawings

Submit detailed assembly drawings for hydraulic power units (HPU) showing the following:

a. General arrangement of components and outline dimensions of unit.

Label all valves and ports and identify all line sizes.

b. Detail drawings of the connection between the HPU and the piping system.

c. Detail drawings of the HPU control panel installation and orientation.

d. Fabrication drawings for each component in the HPU.

1.5.3.5 Piping Drawings

Submit drawings for all new piping and tubing systems that show the following:

a. General arrangement of new piping and appurtenances.

b. Fabrication drawings each new piping or tube segment.

c. Fabrication for each new hose.

d. Fabrication and assembly drawings for new pipe supports.

1.5.3.6 Hydraulic Schematic

Submit hydraulic schematics that are prepared in accordance with ISO 1219-1 and ISO 1219-2 and the following additional requirements:

a. Show all, and clearly identify and label, hydraulic components including valves and pumps.

b. Indicate all setpoint and size parameters for each component.

c. The new hydraulic schematics must incorporate all existing and replaced components and devices.

d. Where schematics are split over multiple drawing sheets, break lines or continuation lines must be clearly identified.

e. Symbology across all schematics must be identical and cohesive, regardless of whether they are prepared by the same supplier or sub-contractor.

f. Provide a key or legend for each schematic that identifies all equipment included in that schematic.

1.5.3.7 Electrical Drawings

Provide all electrical drawings per SECTION 26 05 00.00 28 GENERAL

ELECTRICAL WORK.

1.5.3.8 Shop Drawings

Include fabrication, shop assembly, delivery, and field installation drawings in the detailed shop drawings. Detail any component part of fabricated items omitted on the shop drawings. If departures from the contract drawings are deemed necessary by the Contractor, submit details of such departures, including changes in related portions of the project and reasons thereof, with the shop drawings.

1.5.4 Product Data

Submit complete descriptive literature with drawings and specifications of each product or system of products provided including, but not limited to, cylinders, HPU, pumps, motors, valves, filters, heaters, thermostats, float switches, pressure transducers, switches breathers, and valve controls. Product data literature shall include legible manufacturer's cut sheets and data sheets to clearly indicate physical construction, operation, mechanical, electrical and structural characteristics and associated hardware, as applicable.

For sheets with extraneous data, clearly indicate which data applies by crossing out non-applicable models, circling the correct options, etc.

Include manufacturer's catalog numbers and designations, and clearly cross-reference with shop drawings as appropriate.

For product data submitted for approval, clearly show conformance with these specifications, including, but not limited to product manufacturers' declarations of conformance to applicable technical standards. Product data will be used for supporting approval of components shown or listed on the drawings.

1.5.5 Calculations

Submit explicit, step-by-step design calculations for the following design calculation packages:

a. Hydraulic Hoist Design Verification Calculations including, pump sizing, piping selection, and control logic verification. Calculations must include analysis of the complete hydraulic hoist system using approved products to include HPU, cylinder, control and relief valves.

Utilize a hydraulic circuit simulation software to submit a report ensuring the hydraulic hoist design parameters have been met.

Hydraulic Hoist Design Verification Calculations, LGA

Hydraulic Hoist Design Verification Calculations, LMA

Hydraulic Hoist Design Verification Calculations, LLA

Hydraulic Hoist Design Verification Calculations, HLD

b. Pipe Support Design Calculations

Pipe Support Design Calculations, LGA

Pipe Support Design Calculations, LMA

Pipe Support Design Calculations, LLA

Pipe Support Design Calculations, HLD

All submitted calculations must show that the component or system of components conform the the requirements of these SPECIFICATIONS.

Submitted calculations must conform to the following requirements:

a. Write calculations in a logical order with a full narrative description.

b. State all assumptions that are made.

c. Clearly define all equations, constants and variables, with sources cited.

d. Note all specified or assumed efficiencies and factors of safety.

e. Include free body diagrams or sketches of each load case.

When FEA data is submitted, it shall be submitted in addition to, not instead of, the above calculations. FEA shall be presented in report format. FEA report shall include clear indication of all load scenarios, visual and narrative description of load location and application, boundary conditions / fixtures, global mesh attributes, detailed mesh attributes where mesh refinement is required, reasoning for mesh refinement, verification that actual material is consistent with material used in the model, narrative explanation of any peak stresses noted, and narrative explanation of any peak deflections noted. Submit electronic files of the model, preprocessing and post-processing files for any FEA performed.

1.6 QUALITY CONTROL

In addition to the requirements of SECTION 01 45 04.00 28 CONTRACTOR QUALITY CONTROL, establish and maintain quality control for operations to assure compliance with Contract requirements and maintain records of quality control for all materials, fabricated parts, equipment, and construction operations. In addition, establish and maintain surveillance for quality control over sub-contractors, suppliers, or manufacturers.

The quality control includes, but is not limited to, the following:

a. Materials and workmanship.

b. Manufacture and installation of the piping, hydraulic cylinder assemblies power units and manifolds.

c. Cleaning and flushing.

d. Shop assembly and tests.

e. Field erection and tests.

f. Damage and defects.

Submit a copy of these records and tests, as well as the records of corrective action taken, to the Government.

1.7 WARRANTY

All components and parts are to include manufactures standard warranty.

PART 2 PRODUCTS

2.1 MATERIALS AND MECHANICAL EQUIPMENT

2.1.1 General

Provide materials and mechanical equipment in accordance with the requirements as indicated or specified, and if not specified, furnish materials and mechanical equipment of the best commercial grade quality suited to the intended use and as approved. All system components shall have rated working pressure at least 2,000 psi and rated maximum pressure at least 3,000 psi. All electric motors, hydraulic pumps, hydraulic cylinders, valves and similar items and/or accessories, of the same type and size, to be the products of the same manufacturer, unless otherwise approved. Permanently display the manufacturer's name, address, and catalog number on a nameplate securely attached to each item of equipment.

Manufacturers must include a hydraulic fluid certificate of compliance that contains manufacturer's statement for each product submitted stating that the products are compatible with the ISO-L-HEPG hydraulic fluid approved in section 35 05 40.15 28 HYDRAULIC FLUID.

2.1.2 Standard Products

The standard product of any reputable manufacturer regularly engaged in the commercial production for at least 10 years prior to this solicitation of the type and quality of material or equipment referred to will not be excluded on the basis of minor differences, provided essential requirements of the specifications relative to materials, capacity, and performance are met.

2.2 HYDRAULIC FLUID

All hydraulic fluid used to fill, including temporary fills, must be in accordance with SECTION 35 05 40.15 28 HYDRAULIC FLUID.

2.3 HYDRAULIC CYLINDERS

Hydraulic cylinders must be, to the extend possible, a standard configuration from a hydraulic cylinder manufacture with at least 20 years of experience.

2.3.1 General Design and Configuration

Provide 16 complete cylinder assemblies, plus spares identified in paragraph SPARE PARTS, that meet the requirements of the following paragraphs and the following general requirements:

a. Cylinders are to be double acting, mill-type designed to meet the requirements of the criteria stated in PARAGRAPH: "Design Parameters".

b. Cylinder exterior dimensions must conform to what is shown on the Contract Drawings and required by this SECTION.

d. Hydraulic Connections: All connection points to the hydraulic lines must be located on stationary components of the hydraulic cylinder assembly. Drill, tap, and surface ports to receive SAE Code 61 flanges.

e. Provide an air bleed port on the top of each cylinder. Tap each port to receive 7/16-20-SAE bleed valves.

f. Provide a drain port on the bottom of each cylinder. Provide a plug for each port. Ports must be a minimum of 1 inch, nominal, in diameter and tapped with SAE threads. NPT threads are not acceptable.

g. Cylinder rod shall be designed with a minimum factor of safety of 3.0 to resisting buckling under compression. Cylinder rod must fit with restraints of embedded packing seal.

h. All exterior surfaces of the hydraulic cylinders except the piston rod and those components made from stainless steel must be painted in accordance with manufacture's standard and approved coatings for this application.

i. Provide evidence that each cylinder was hydrostatically tested by the manufacturer to 200 percent of the severest service rating and that dynamic seals are suitable for both frequent and infrequent operation and are capable of not less than 500,000 cycles of operation in systems properly maintained.

2.3.2 End Configurations

2.3.2.1 Rod End

The design of the rod end must be per contract drawings.

2.3.2.2 Cylinder End

The cylinder end must be flange mount and connect to mounting base shown in contract drawings. Modified mounting base designs may be proposed in order to better standardize cylinders with off the shelf components.

Equip the cylinder head with a rod seal and external dirt wiper and a rod bushing piloted into the head to ensure concentricity. Rod bushings must be removable without the use of special tools.

2.3.3 Cylinders

Cylinders for hydraulic cylinder assemblies must be provided in accordance with the following requirements:

a. Make cylinders out of steel meeting one of the following options::

1) Option A: Rolled steel plate in accordance with ASTM A516/A516M , Grade 70 or equivalent material as approved, and welded flanges in accordance with ASTM A105/A105M or equivalent material as approved.

2) Option B: Provide centrifugal cast steel shell in accordance with ASTM A216/A216M , Grade WWC or equivalent material as approved, and welded flanges in accordance with ASTM A105/A105M , Class 70 or equivalent material as approved, or cast from ASTM A216/A216M , Grade WWC steel or equivalent material as approved.

3) Option C: The shell and flanges a solid trepanned forging in accordance with ASTM A266/A266M , Class 1 or equivalent material as approved.

b. The interior of the finished cylinder to be honed to the dimensions, tolerances and surface finish shown on the shop drawings.

c. The finished wall thickness not to be less than what is calculated in the design calculations.

d. Weld flanges to the cylinder parallel with each other and perpendicular to the cylinder center line.

e. Stress relief heat treat the cylinder after completion of all welding.

f. The assembled cylinder to be of such straightness that the piston and rod move smoothly without any indication of binding or tight spots.

g. Perform weld inspection of the cylinders in accordance with manufacture's standard practices.

2.3.4 Piston Rods

2.3.4.1 Piston Rod General Requirements

Piston rods for hydraulic cylinders must meet the following requirements:

a. Rod material and road coating system must be in accordance with one of the following options:

1) Weld Overlay-Type Coating: Make rods from carbon steel meeting the requirements of ASTM A108, Type C 1045 or Type CR 4140 or equivalent material as approved. Outer surface coating must be weld overlay or laser clad type. The coating material must be certified and formulated to consist of a metal alloy to meet corrosivity category and designed and applied by the cylinder manufacturer.

2) Thermal Spray-Type Coating: Make rods from carbon steel meeting the requirements of ASTM A108, Type C 1045 or Type CR 4140 or equivalent material as approved. Case harden to 50-54 Rockwell C. Coating must be a thermal sprayed type applied with the high velocity oxygen fuel (HVOF) method per ASTM E1920 and ASTM C633.

Coating material composition must consist of Nickel-Chromium based alloys to meet the corrosivity category specified. Apply coating in multiple layers.

b. If rods are made from two or more pieces, joints must be made with full penetration welds. Perform weld inspection of the rods in accordance with manufacture's standard practices.

c. The final rod surface to have a roughness height of not more than 8 microinches Ra.

d. Quantify the final rod surface roughness using the Rpk-Rk-Rvk in accordance with ISO 13565 . Other parameters such as Ra, Rz or Rmax value can only be used indicative. Roughness to be determined by Cylinder manufacturer and Seal manufacturer for the intended cylinder operating environment as specified.

e. Submit certified test reports for both the rod material and performance requirements as specified.

f. Protect the piston rings from blow-out and oversqueezing.

g. Cup-type seals (if used) shall be designed to automatically compensate for wear.

2.3.4.2 Piston Rod Coating Data

All rod coatings must meet or exceed the minimum test criterion as stated in the following tables (Tables 1 and 2).

Submit rod coating data that includes details compliance with the following tables as well as any additional information required to prove compliance with the requirements of this SECTION.

Table 1: Thermal Sprayed (HVOF) Coating Requirements

No. Test Criterion Remarks

1. Manufacturing Procedure Specification (MPS) for the application of technical coatings

Manufacturer to be ISO 9001 certified and or have produced coatings of the type and application specified for a minimum of 5 years with a written quality documentation procedure in place during that period.

Implementation and certification performed by the manufacturer. The MPS to address such items as Personnel Qualification for Coating application, Calibration of equipment and service maintenance records, Material Certificates with chemical composition, Process parameter specification thresholds, Dimensional control, Inspection/ Acceptance.

2. Microscopic examination (cross section)

2-3% pores allowed.

Cracking is prohibited.

Typically performed at 10-100 x visual magnification.

3. Chemical composition

NiCr based alloy. To be documented by powder certificate provided as a submittal for approval.

4. Coating thickness

Manufacturer's stated range for the certified coating system.

Conduct pre-and post-process diameter measurements. Additional tests may be performed of test samples produced at time of fabrication may be submitted.

5. Hardness 550-700 HV 5 Vickers in accordance with ISO 6507 -1.

Hardness measurements on the finished product is prohibited.

6. Adhesion strength

Strength to be per requirements of ASTM C633. Submit other procedures proposed by the manufacturer.

Test according to manufacturer's approved procedure if different than that specified.

No. Test Criterion Remarks

7. Corrosion testing

SDCT 10,000

hours

Perform Corrosion Testing according to Manufacturer's standard testing procedures. Submit test results or previous test results.

Salt droplet corrosion test as required. Submit for approval. A distinction between single and dual and multiple layers is necessary.

8. Surface finish Rmr - mr (-1.5, 2.0) => 80% Ra: (>0.1 micrometers or

3.93 microinches <0.4 micrometers or 15.75 microinches)

All surface finish parameters in accordance with ISO 4287 and ISO 4288 .

No cracks, blisters, holes, or discoloration visible with naked eye are allowed.

No defects >0.2 micrometers or 7.87 microinches allowed.

No defects through coating and into base material allowed.

Surface finish measurements to be obtained by contact stylus in accordance with ISO 3274 .

General visual inspection.

Indications to be assessed visually at 30-40x magnification.

9. Impact test Perform impact testing in accordance with ASTM D2794, or a similar test in accordance with Manufacturer's standard testing procedures.

Submit test results for approval.

Radial cracking at or below 8 Joules is prohibited.

No. Test Criterion Remarks

10 Dynamic bending (3-pt)

Perform dynamic bending in accordance with manufacturer standard procedures. Cracking before 1000x @400MPa is prohibited.

Table 2: Welded Overlay (Laser Cladding) Coating Requirements

No. Test Criterion Remarks

1. Welding Procedure Qualification (WPQR) for the application of technical coatings

Manufacturer to be ISO 9001 certified and or have produced coatings of the type and application specified for a minimum of 5 years with a written quality documentation procedure in place during that period.

Welding to be performed in accordance with ISO 15614-7 or ASME BPVC SEC IX or both.

Implementation and certification performed by the manufacturer. The WPQR should address such items as Personnel Qualification for Coating application, Calibration of equipment and service maintenance records, Material Certificates with chemical composition, Process parameter specification thresholds, Dimensional control, Inspection/ Acceptance.

2. Microscopic examination (cross section)

0.1% defects allowed in accordance with ISO 5817 Table 1

3. Chemical composition

Metal alloy Powder certificate provided as a shop drawing submittal for approval

4. Coating thickness

Manufacturer's stated range for the certified coating system.

Conduct pre-and post-process diameter measurements. Additional tests may be performed of test samples produced at time of fabrication may be submitted.

No. Test Criterion Remarks

5. Hardness In accordance with ISO 15614-7 as recommended by manufacturer and approved.

>300 HV 5 Vickers in accordance with ISO 6507 -1 or 290 Brinell Hardness

Maximum hardness depends on substrate material. Care must be taken to keep the heat-affected zone (HAZ) soft enough to avoid brittleness and potential delamination with the substrate

6. Corrosion testing for low corrosivity categories SDCT 4000 hours

Perform Corrosion Testing in accordance with Manufacturer's standard testing procedures. Submit test results.

Electrochemical test or salt droplet corrosion test as required for low corrosivity category.

7. Corrosion testing for high corrosivity categories C5 and CX by

ASTM G48

ASTM G48-C/72h >60C Utilize corrosion testing per manufacturer testing method or ASTM G48. No pitting at 60C

8. Surface finish Rmr - mr (-1.5, 2.0) => 80%, Ra: (> 0.1 micrometer or

3.93 microinch < 0.4 micrometer or 15.75 microinch)

All surface finish parameters in accordance with ISO 4287 and ISO 4288 .

No cracks, blisters, holes, or discoloration visible with naked eye are allowed.

No defects >0.2 micrometer or 7.87 microinches allowed.

No defects through coating and into base material allowed.

No. Test Criterion Remarks

9. Impact test Perform impact testing in accordance with ASTM D2794, or a similar test in accordance with Manufacturer's standard testing procedures.

Submit test results for approval.

No cracking at 8 Joules minimum

10. Dynamic bending (3-pt)

Perform Dynamic Bending (3-Pt) in accordance with Manufacturer's standard testing procedures. Submit test results. Achieve 400MPa bending stress.

2.3.5 Pistons

Make pistons from cast iron meeting the requirements of ASTM A536, Grade 80-55-06 or 10-50-05 or equivalent material as approved.

2.3.6 Seals, O-Rings And Bearing Materials

Design and provide seals, O-rings, and bearing materials to be compatible with the specified hydraulic fluid. Each material in use with the hydraulic cylinder to be tested to verify the chemical resistance and hydraulic fluid compatibility. Conduct testing in accordance with ISO 1817 to measure changes in hardness, tensile strength, and elongation to satisfy the requirements of the cylinder and seal manufacturers. Submit for Government approval seals, O-rings and bearing materials.

Submit seals, O-rings, and bearing material properties in accordance with the minimum requirements as specified in manufacturers standard recommendation as approved.

2.3.6.1 Temperature Ranges

Seals and o-rings must be rated for use over an operating temperature range of 0 degrees F to 105 degrees F.

2.3.6.2 Piston Wear Rings

Provide cast iron piston wear rings with a compressive and tensile strength of not less than 24,000 psi . The embedability capability to prevent scoring of the cylinder.

2.3.6.3 O-Ring Seals

Use O-ring seals made of Viton and designed for 3000 psi service.

2.3.6.4 Rod Wiper/Scraper

Provide a high-strength polyurethane scraper ring which will withstand the impact and the abrasion of materials adhering to the piston rod and have a minimum tear resistance of 685.2 pounds per inch . Split and retain the scrapers with split, bolted retainer to facilitate replacement without disturbing the rod-end connection.

2.3.6.5 Piston and Piston Rod Seals

Provide zero leakage U cup piston rod seals and zero leakage C shape piston seals, each designed for 3000 psi service.

2.3.7 Rod Seal Gland

Fabricate the rod seal gland and locking device flange from bronze in accordance with ASTM B505/B505M , Alloy No. C95400 or C93200. The scraper, attached to the gland, bronze-filled polytetrafluoroethylene in accordance with ASTM B584, Alloy No. C86300.

2.3.8 Lifting Device

Provide integrated lifting eyes for the cylinders that meets the following requirements:

a. Lifting eyes must be designed to take a cylinder from horizontal to vertical orientation.

b. Provide a shackle or similar arrangement so that the lifting eyes can be attached to a crane hook using slings.

2.4 HYDRAULIC POWER UNIT (HPU)

2.4.1 General - HPU

Provide identical hydraulic power units mounted indoors at elevation as indicated on the contract drawings. The HPU must be configured in accordance with the Contract drawings, and the following paragraphs and general requirements:

a. Design the packaged unit to operate the hydraulic system in accordance with the criteria stated in PARAGRAPH: "DESIGN PARAMETERS".

b. The new HPU must fit in the area designated on the Contract Drawings.

d. Design the unit such that it is free standing and capable of being lifted or moved without structural damage.

e. All components, including but not limited to, piping, motors, pumps, manifolds and controls must be securely attached to the HPU in a manner to be free of damaging vibration during operation.

f. Provide safety guards to prevent personnel from coming into contact with any exposed rotating equipment.

g. All piping, tubing, valves, instruments, and other appurtenances used in the construction of the HPU must meet the requirements of the associated PARAGRAPHS in this SECTION.

h. Provide valves, instruments, and other appurtenances in the quantity and location as indicated in the Contract Drawings

i. HPU must operate in accordance with the control schematic that is shown in the Contract Drawings

j. Use tubing and piping that accordance with the requirements of PARAGRAPHS: PIPING and TUBING of this SECTION. Use carbon steel or stainless piping.

k. Provide manually adjustable maximum limits of displacement.

l. Provide internal factory-set pressure relief.

m. Provide manual suction and discharge ball valves to facilitate pump replacement.

2.4.2 Gauges

Provide pressure gauges as shown on contract drawings. Conform to ASME B40.100, have a stainless steel case, a 4-1/2 inch dial, and a stainless steel Bourdon tube. The scale range of the gauge must be approximately 150 percent of the maximum pressure of the line in which installed. Provide safety type gauges with solid fronts and blowout. Mount gauge as approved.

Face mount gauges at a readable location. Bottom tap gauges and gauge lines in horizontal pressure lines.

2.4.3 Pumps

Provide hydraulic pumps that meet the following requirements:

a. Pumps must be electric motor-driven, variable displacement axial piston type pumps. Pumps must provide a manually adjustable maximum flow set point to meet speed requirement range of the hydraulic hoist.

b. Each pump must be rated to deliver a continuous flow and pressure of the specified hydraulic fluid at the rated speed of the selected electric motor to meet hydraulic hoist design parameters.

c. Maximum rotating speed must be no greater than 1800 rpm.

d. Rated net positive suction head (NPSH) required for the pump must be at least 15% greater than the calculated NPSH available (contractor calculated).

e. Provide flexible connections, made from flexible hose meeting the requirements of PARAGRAPH: FLEXIBLE HOSES in this SECTION, on the discharge ports of each pump.

f. Pump must accommodate close coupling of the motor through a C-face mount or similar.

g. Install the pump or provide an inlet check valve so that the pump suction is flooded.

h. Pump must have manually adjustable pressure compensation set point.

2.4.4 Pump Motors

Provide an electric motor for each pump in accordance with Section 26 05 00.00 28 GENERAL ELECTRICAL WORK. Electric motors must meet the following requirements:

a. Electric motors must meet the requirements of NEMA MG 1, except as specified otherwise.

b. Size the motors to operate the pumps at the specified conditions in the PARAGRAPH: Pumps, above but must not be more than 40hp. If the required pumping horsepower is within +0%/-10% of the closest standard motor size, select the next larger standard motor size.

c. Motors must be rated to operate on 480 volt, 60 hz, delta connected, 3 phase power and be designed for full voltage starting.

d. Motors must be total enclosed frame, fan cooled construction (TEFC).

e. Provide winding insulation of either class F or H with special moisture, fungus, and oil-proof treatment. Provide winding insulation of the type designed and constructed to withstand the severe moisture conditions and the wide range in ambient temperature to which the motors will be subjected.

f. Motors must be rated to operate continuously without exceeding the temperature rise permitted by the applicable NEMA standards for the class of insulation and frame construction used. Motors must be rated for a minimum of 4 start/stop cycles per hour.

g. Provide motors with encapsulated windings.

h. Provide three-phase NEMA Class 20 thermal overload relays with external manual reset. Solid state or electronic overloads are acceptable.

i. Provide rubber isolation bushings between the motor and mount/skid

2.4.4.1 Motor Winding Heaters

Size and install heaters on the motor windings to prevent the formation of moisture on the…