Attachment 1 - Statement of Work_PLANET.pdf

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (NASA)

George C. Marshall Space Flight Center (MSFC)

STATEMENT OF WORK (SOW)

Procurement of the PLANET Vacuum Vessel and Pumping System

Contents

STATEMENT OF WORK (SOW)

1.0 Background

2.0 Characteristics, Scope, and Specifications

2.1 Specifications

3.0 Tasks

4.0 Support and Maintenance

5.0 Place of Performance/Delivery

5.1 Key Personnel

6.0 Period of Performance

7.0 Other pertinent information or special considerations

STATEMENT OF WORK (SOW)

PLANET Vacuum Vessel and Pumping System

1.0 Background

The National Aeronautics and Space Administration (NASA), Marshall Space Flight Center (MSFC) has a requirement for a planetary environment testbed that will enable scientists and engineers involved in the development of spaceflight systems to both mature and verify their technologies in a realistic planetary surface environment. Work in this area is motivated by NASA’s Moon to Mars (M2M) Mission, which seeks to enable a sustained human presence on Earth’s Moon and the planet Mars. Mission success on any planetary body requires rigorously testing materials and systems to verify they will perform in the harsh planetary (space) environments.

This SOW details the equipment specifications, vendor tasks and, responsibilities necessary for successful performance during the contract period.

2.0 Characteristics, Scope, and Specifications

The MSFC Space Environmental Effects Team is working to enable NASA’s planetary exploration goals through the creation of a unique laboratory test capability known as the Planetary, Lunar, & Asteroid Natural Environment Testbed or PLANET. The new capability is being designed to comprehensively recreate space environments associated with the surface of planetary bodies such as the Moon and Mars – including finely crushed rock known as regolith simulant. Foundational to the development of the PLANET capability is a vacuum vessel constructed with a port arrangement that provides for multiple configurations of sources and diagnostics to adapt to customer’s specialized requirements. To achieve the high-vacuum environment required for the PLANET vacuum vessel, while avoiding mechanical failure due to regolith simulant ingestion, a large cryogenic pump is planned to be mounted on a dedicated port near the top of the vacuum vessel. To ensure safe and repeatable operations for both vacuum pump-down and pressurization to atmospheric pressure, an automated control and monitoring system is envisioned for the PLANET vacuum pumps, valves, and sensors.

This SOW has been developed to ensure the successful design, fabrication, delivery, and installation of the PLANET Vacuum Vessel and Pumping System.

2.1 Specifications

The following is required:

2.1.1 Cylindrical vacuum chamber made with 304L stainless steel, glass-bead blasted surface finish, and cleaned for vacuum use (oil and grease free)

2.1.2 Cylindrical vacuum chamber interior dimensions of 2.0-meter diameter x 3.0-meter length (6.56 feet diameter x 9.84 feet length)

2.1.3 304L stainless steel saddle-style chamber support with (square) box beam legs capped on each end with a square flange with holes in each corner. Leg height estimated to be 61 cm (24 inches). Quantity = 3

2.1.4 Dome-shaped full-size hinged-door on each end of the chamber (quantity = 2 total). Door hinge to allow opening to at least 110 degrees.

2.1.5 Door seals should be redundant (2) Viton O-ring gaskets with grooves on chamber-side flange with provision (small port and orifice between O-rings) for differential vacuum pumping between O-ring seals

2.1.6 Chamber and each door should be fitted with a custom arrangement of flanged ports per MSFC Concept Drawing PLANET VV-101. All flanges to be non-tapped, non-rotatable.

2.1.7 Chamber flanged ports include

a. DN500 ISO K, Quantity = 2

b. DN250-ISO-K, Quantity = 1

c. DN16KF, Quantity = 1

d. DN275CF (13.25-inch OD ConFlat), Quantity = 4

e. DN200CF (10-inch OD ConFlat), Quantity = 18

2.1.8 Door 1 flanged ports include

a. DN275CF (13.25-inch OC ConFlat), Quantity = 1

b. DN200CF (10-inch OD ConFlat), Quantity = 5

2.1.9 Door 2 flanged ports include

a. DN275CF (13.25-inch OD ConFlat), Quantity = 1

b. DN200CF (10-inch OD ConFlat), Quantity = 3

2.1.10 All welds to be internal (vacuum side) fusion welds per standard vacuum vessel welding procedures

2.1.11 Individual leak-rate of all welds and metal sealed flanges to be less than 1x10E-09 mbar-l/s; O-ring sealed joints to have an individual leak-rate of less than 1x10E-07 mbar-l/s.

2.1.12 Completed chamber to have ASME Section VIII or The National Board of Boiler and Pressure Vessel Inspectors NB-23 code stamp or equal.

2.1.13 Chamber to be shipped with stainless steel blank flanges and Viton or Copper gaskets suitable for high-vacuum sealing of each of the 36 flanged ports described in lines 2.1.6, 2.1.7, and 2.1.8 (above).

2.1.14 L-shaped stainless-steel rails to be welded along the length of the chamber interior to form a mounting base for a stainless-steel grated floor.

2.1.15 Cryo pump with 10,000 l/s (N2) pumping speed, DN 500 ISO-K flange, and matched Helium compressor unit (water cooled). Leybold Coolvac 10.000 iSL and Coolpak 5000i or equal.

2.1.16 High vacuum electro-pneumatic, Viton-sealed, gate valve with DN 500 ISO- F flange (compatible with Cryo pump flange)

2.1.17 Hermetically sealed screw vacuum pump with pumping speed of 650 m3/h, DN 100 ISO-K inlet flange, silencer to reduce audible noise, and backflow prevention valve. Leybold Dryvac DV 650 or equal.

2.1.18 For chamber roughing (evacuation from atmospheric pressure to low vacuum): Right-angle valve, bellows-sealed with pneumatic actuator, electro-magnetic solenoid valve, optical position indicators, and DN 100 ISO-K flanges. Leybold Leycon BAV 100 EP or equal.

2.1.19 Stainless steel roughing line with DN 100 ISO-K flanges, 5-meter total length including 1-meter of flexible metal bellows hose.

2.1.20 Pump for differential door seals: Two-stage, oil-sealed rotary vane pump, air-cooled with manual gas-ballast valve, hydro-pneumatic anti suck-back valve, and pumping speed of 5.0 cubic meters per hour. Leybold Trivac D 4 B or equal.

2.1.21 Electronic vacuum pressure gauge with measuring range of 1500 to 5E-05 mbar, DN 16 KF flange, and analog and digital monitoring outputs. Leybold Thermovac Transmitter TTR 101 or equal.

2.1.22 Electro-pneumatic, bellows-sealed, right-angle valve for chamber venting to atmospheric pressure with DN 40 KF flanges.

2.1.23 Low pressure safety switch for indicating vented chamber status with DN 16 KF flange.

2.1.24 Overpressure safety valve with actuation range of 1150 +/- 40 mbar and DN 16 KF flange

2.1.25 DN250-ISO-K adapter flange to consolidate small KF-flanged connections.

Adapter to include standard welded half-nipples of: DN 40 KF (qty.=2), DN 25 KF (qty. =2), and DN 16 KF (qty. = 3).

2.1.26 Automated vacuum pumping and pressurization control system, utilizing Programmable Logic Control (PLC) interfaces, safety interlocks, and pressure monitoring.

3.0 Tasks

Requirement Expected Completion Create and deliver to NASA a project schedule showing the main milestones from initiation through on-site acceptance test.

Within 1 week after contract award

Project kick-off meeting with MSFC personnel using collaboration software such as Microsoft Teams or Webex. Specifications to be reviewed during the meeting.

Within 2 weeks after contract award

Delivery of final vacuum vessel design drawings to MSFC (electronic drawings to be of a format readable by PTC software “Creo”)

Within 8 weeks of project kick-off meeting

Identification of personnel expected to perform on-site work at MSFC, to include their USA citizenship status.

Within 24 weeks of project kick-off meeting

Construction of vacuum chamber and DN250-ISO-K adapter flange per

Within 34 weeks of NASA approval of final drawings specification line 2.1.24

Bolt blank flanges with appropriate Viton or Copper gaskets to all open ports, attach pumps and valves, and demonstrate leak-free high-vacuum performance.

Within 2 weeks of completion of chamber construction

Ship chamber, with stainless steel blank flanges and gaskets in place on the ports, to Government specified Place of Delivery (see

5.0 below).

Within 2 weeks of demonstration of leak-free high-vacuum performance

On-site acceptance test to include setup, checkout, and successful demonstration of automated vacuum pump-down and pressurization control systems. Vacuum pump-down must reach a pressure of 1.0E-3 Pa (8.0E-6 Torr) or lower to meet acceptance requirement.

Within 3 weeks of delivery of the vacuum chamber and pumping systems to MSFC

4.0 Support and Maintenance

All hardware shall carry a 12-month warranty after completion of site acceptance testing.

The following support and maintenance are required for no less than a period of 30 days following completion of the site acceptance testing:

• Field Service Engineering Support – typically 2-day on-site response time

• Standard 8x5 phone and email support

5.0 Place of Performance/Delivery

NASA MSFC Building 4605 Huntsville, Alabama, 35812, USA

5.1 Key Personnel

The primary point of contact for installation and training is:

Todd Schneider

NASA/MSFC

256.544.2595 office todd.schneider@nasa.gov

Alternate point of contact is:

Jason Vaughn

NASA/MSFC

256.544.9347 office jason.a.vaughn@nasa.gov

On-site work to be coordinated with the primary and alternate points of contact at least one week in advance.

6.0 Period of Performance

The total period of performance from award of contract to completion of the site installation and acceptance shall be no more than 52 weeks.

7.0 Other pertinent information or special considerations

7.1 Payment Terms

a. 20% on delivery of a Project Schedule including Tasks/Milestones shown in Section

3.0 above, (Net 30 days)

b. 20% at the time of NASA drawing approval, (Net 30 days)

c. 30% at the time of shipment, (Net 30 days)

d. 30% final payment after Site Acceptance Test (SAT) (Net 30 days, not to exceed 90 days from shipment)