25-8418_Exhibit_J_Technical_Specs_NRO_Wells_118_and_120_Specifications_Signed_and_Sealed_-_Revised.pdf

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Globe Body Silent Check Valves

NRO Wells 118N and 120N Improvements 400565.35 - 1

Collier County, Florida Issued for Bid

SECTION 400565.35 – GLOBE BODY SILENT CHECK VALVES

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes: Globe body silent check valves, 2.5 through 42 inches in size.

B. Related Requirements:

1. Section 400551 “Common Requirements for Process Valves” for basic materials and methods related to valves commonly used for process systems.

1.3 ACTION SUBMITTALS

A. Product Data: Submit catalog information, indicating materials of construction and compliance with indicated standards.

B. Manufacturer's Certificate: Certify that products meet or exceed specified requirements.

1.4 INFORMATIONAL SUBMITTALS

A. Source Quality-Control Submittals: Indicate results of factory tests and provide required certifications.

B. Field Quality-Control Submittals: Indicate results of Contractor-furnished tests and inspections.

C. Qualifications Statement:

1. Submit qualifications for manufacturer.

1.5 CLOSEOUT SUBMITTALS

A. Project Record Documents: Record the actual locations of piping, valves and other appurtenances, connections, and centerline elevations.

TALLMAND

Stamp

TALLMAND

Text Box Specification Section 400656.35 Pages 1 through 4

Globe Body Silent Check Valves

NRO Wells 118N and 120N Improvements 400565.35 - 2

Collier County, Florida Issued for Bid

1.6 QUALITY ASSURANCE

A. Comply with AWWA C518.

B. Materials in Contact with Potable Water: Certified according to NSF 61 and NSF 372.

C. Provide Installation Inspection and Operator Training Per Section 400551 “Common Work

Requirements for Process Valves.”

D. Provide testing and inspection certificates.

1.7 QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing products specified in this Section with minimum five years documented experience.

B. Installer: Company specializing in performing Work of this Section with minimum five years documented experience.

1.8 DELIVERY, STORAGE, AND HANDLING

A. Inspection: Accept materials on Site in manufacturer's original packaging and inspect for damage.

B. Store materials according to manufacturer instructions.

C. Protection:

1. Protect materials from moisture and dust by storing in clean, dry location remote from construction operations areas.

2. Protect valves and appurtenances by storing off ground.

3. Cover flange faces with 3/4-inch plywood blinds.

4. Provide additional protection according to manufacturer’s instructions.

1.9 EXISTING CONDITIONS

A. Field Measurements:

1. Verify field measurements prior to fabrication.

2. Indicate field measurements on Shop Drawings.

1.10 WARRANTY

A. Furnish two-year manufacturer's warranty for globe body silent check valves.

Globe Body Silent Check Valves

NRO Wells 118N and 120N Improvements 400565.35 - 3

Collier County, Florida Issued for Bid

PART 2 - PRODUCTS

2.1 GLOBE BODY SILENT CHECK VALVES – Tag Type CV

A. Manufacturers:

1. Bermad, Model 70N.

2. Substitutions: Not permitted.

B. Description:

1. Clean Water Service:

a. Type: Globe body, double guided, spring-loaded, poppet check valves. Y Pattern, hydraulically operated, double chamber actuator, and diaphragm assembly. Y

Pattern, non-slam, lift type, non-return valve.

b. Style: Flanged.

c. Body: Type 316 stainless steel. Fusion bonded epoxy coated ductile iron, ASTM

A536.

d. Cover: Type 316 stainless steel. Fusion bonded epoxy coated ductile iron, ASTM

A536.

e. Seal Disc: Concave Type CF8M stainless steel. Stainless steel, AISI 410.

f. Seats: Buna-N or EPDM. Stainless steel, AISI 304.

g. Shaft: Stainless steel, AISI 303

h. Diaphragm: Fabric-reinforced EPDM

i. Disc Pin: Type 316 stainless steel.

h. O-Rings and Cover Seal: EDPM

i. Main Seal: NBR

j. Spring: Type 316 stainless steel. Stainless steel, AISI 302.

C. Working Pressure Rating:

1. Valves 2.5 through 12 Inches: 150 psig at 150 degrees F.

D. Finishes: As specified in Section 400551 “Common Requirements for Process Valves.”

2.2 SOURCE QUALITY CONTROL

A. Testing:

1. Hydrostatically test check valves at twice rated pressure according to AWWA C518.

2. Permitted Leakage at Indicated Working Pressure: None.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that field dimensions are as indicated on Shop Drawings.

http://www.specagent.com/LookUp/?ulid=12529&mf=04&src=wd

Globe Body Silent Check Valves

NRO Wells 118N and 120N Improvements 400565.35 - 4

Collier County, Florida Issued for Bid

B. Inspect existing flanges for nonstandard bolt-hole configurations or design and verify that new valve and flange mate properly.

3.2 PREPARATION

A. Thoroughly clean valves before installation.

B. Surface Preparation:

1. Solvent clean surfaces that are not shop primed.

2. Clean surfaces to remove loose rust, mill scale, and other foreign substances by commercial sand blasting; SSPC SP 6.

3.3 INSTALLATION

A. According to AWWA C518 and manufacturer instructions.

B. Dielectric Fittings: Provide between dissimilar metals.

3.4 FIELD QUALITY CONTROL

A. Section 400551 “Common Requirements for Process Valves.”

B. Inspection:

1. Inspect for damage to valve lining or coating and for other defects that may be detrimental as determined by Engineer.

2. Repair damaged valve or provide new, undamaged valve.

3. After installation, inspect for proper supports and interferences.

C. Pressure test valves with piping.

3.5 CLEANING

A. Keep valve interior clean as installation progresses.

END OF SECTION 400565.35