Specifications.docx

Key Specifications

Minimum requirements for the air compressor:

1. Type: rotary screw compressor

2. Max Pressure: at least 190 PSI

3. Power: at least 20 horse power

4. Minimum Flow Rate: at minimum the compressor should be able to provide a constant flow of 25 CFM at a pressure of 180 PSI.

5. Drive: direct drive (no belts)

6. Stage: single

7. Control: Variable Speed

8. Tank: None

9. Mounting: Base

10. Enclosure: the compressor should have an enclosure used to minimize sound and to protect personal

11. Sound Level: maximum 65 dBA in open air at a distance of 3 feet

12. Outlet Connection: 1 inch

13. Use: inside building

14. Electrical Connection: 3 phase 460V

15. Size: No larger than 55 inches long, 34 inches wide, and 50 inches high

Minimum requirements for the installation and delivery of the air compressor

16. Delivery: the new compressor should be delivered to the NIST Gaithersburg campus, building 233 room A121

17. Removal: The failing Ingersoll Rand air compressor (Model: SSR-HXP20SE) should be properly and safely removed from the building.

18. Mounting: The new compressor should be set on and securely mounted to the existing steel frame.

19. Plumbing: installation should include plumbing the compressor to the existing steel air tank and any necessary drains.

20. Electrical: installation should include electrically connecting (wiring) the new compressor with the existing fused electrical distribution.

21. Startup: installation should include startup and commissioning of the compressor by the company installing the new compressor

22. Training: installation should include training at least one NIST operator on how to operate the new compressor.