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SPECIFICATION FOR PURCHASE

NASA Glenn Research Center Plum Brook Station

6100 Columbus Ave.

Sandusky, OH 44870

Valves for Gaseous Helium Service For Use at The

In-Space Propulsion Test Facility (ISP)

September 6, 2019

1.0 INTRODUCTION AND BACKGROUND INFORMATION

This specification applies to a series of components for use in a gaseous helium control panel.

These components consist of forty-three (43) remotely-operated shut-off valves and twelve (12) remotely operated three-way valves.

2.0 SCOPE

This specification establishes the requirements for the fabrication, inspection, and shipping of the components described herein.

3.0 APPLICABLE DOCUMENTS AND/OR SPECIFICATIONS AND/OR DEFINITIONS

3.1 Definitions

3.1.1 ASME B16.34

o Valves – Flanged, Threaded, and Welding End

3.1.2 ASME B31.3

o Process Piping Guide

3.1.3 NASA KSC-C-123J

o Specification for Surface Cleanliness of Ground Support Equipment Fluid Systems

4.0 TECHNICAL SPECIFICATIONS

4.1 General Component Requirements

4.1.1 Operational Conditions

o Commodity gas and service pressures and temperatures are noted in Appendices A-B.

4.1.2 Environmental Conditions

o Valves will be located indoors. The valves will experience conditions in the following ranges:

o Temperature: 40 – 80 degrees Fahrenheit o Pressure: 14.4 – 15.0 psia

4.1.3 Material

o Valve body and metallic wetted surfaces shall be constructed of either 304 or 316 stainless steel.

o Valves shall have PTFE or PCTFE seats/seals.

o Material certifications shall be provided.

4.1.4 Lubricants

o Vendor shall use Krytox 240 AC or approved equal.

4.1.5 Pneumatic Gas Supply

o The facility will provide dry air between 60 and 150 psig

4.1.6 Body

o Allowable shut-off seat leakage is bubble tight o Allowable body leakage is bubble tight or equivalent at maximum operating pressures o Valves shall be designed such that the pressure rating meets the criteria of B31.3 o Connections are to be SAE or AS4395/AS5202 type mechanical fittings o Any nominal connection sizes that do not match the values listed in Appendices

A-B exactly should be noted in response

4.1.7 Panel Mounts

o Please provide panel mounting hardware.

4.1.8 Cleaning

o Wetted surfaces shall be cleaned to the following fluid surface cleanliness levels:

Particle Size Range (microns)

Maximum Number of Particles per 0.1 m2

< 100 Unlimited 100 to 250 155 > 250 to 400 5 > 400 0

Nonvolatile Residue Max mg per 0.1 m2 Level A 1

4.1.9 Certifications

o If applicable, all welding shall be performed by an ASME B31 qualified welder and weld procedure. Proof of welder and weld qualification is required.

4.2 Remote Shutoff Valve Requirements

4.2.1 Sizing Requirements

o See Appendix A

4.2.2 Fail Position

o Valves shall fail electrically and pneumatically as indicated Appendix A

4.2.3 Additional Requirements

o Valves shall include discrete position indicators appropriate for use in hazardous location o Solenoids and position indicators shall be powered using 110 – 120 V A/C, please note exceptions in response

4.2.4 Certifications

o Components shall be certified for use in Class 1, Division 2, Group B location

4.3 Remote 3-Way Valve Requirements

4.3.1 Sizing Requirements

o See Appendix B

4.3.2 Fail Position

o Valves shall fail electrically and pneumatically as indicated in Appendix B

4.3.3 Certifications

o Components shall be certified for use in Class 1, Division 2, Group B location

5.0 QUALITY ASSURANCE AND SAFETY

5.1 Inspections

o If applicable, visual examination of welds shall be performed in accordance with

ASME B31.3. The examination shall be documented and signed by a qualified examiner.

All pipe welds are classified as normal fluid service and shall require 10 percent random radiography in accordance with ASME B31.3. All radiography shall be performed by a code certified technician in accordance with ASME B31.3 code requirements. Radiography sheets shall be documented and signed by the qualified examiner.

o Cleanliness verification following cleaning.

5.2 Analysis

o Performance calculations

Valve Cv’s

5.3 Required Delivery Preparations

o Loose items shall be packed in secondary packages with suitable packing materials.

o Valve ends shall be sealed to maintain required cleanliness. Any seals should be removable in such a manner to avoid contaminating the cleaned areas.

6.0 REPORTS, DRAWINGS AND DELIVERABLES

6.1 Deliverables

Deliverables include all hardware and documents described herein:

o Design drawing of the valves, denoting overall and key dimensions including interface sizes/locations and weight o Analysis/sizing results as described above o Material certifications o Welder certifications o Visual examination record o Signed radiography sheets o Operation manual o Documented verification of required cleanliness

It will be the vendor’s responsibility to arrange for shipping. This may be billed as a separate line item. Packaging for shipment must be performed to maintain system integrity and cleanliness.

All deliverables shall be addressed to:

NASA Plum Brook Station 6100 Columbus Avenue Sandusky, Ohio 44870

7.0 SUBMISSION

7.1 Cost

Please include cost for components described herein.

7.2 Schedule

Please include a schedule with milestones (and milestone payments if required).

7.3 Performance Description

Description of design’s performance capability and footprint.

7.4 Component Cut Sheets

Provide for valves, solenoids, and position indicators.

7.5 Component Cleanliness Preservation

Description of method to preserve component cleanliness during shipment.

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