Attachment 5 Questions and Answers.pdf

NPTU Inspection of Air Receivers

FA441825Q0007

Questions and Answers

1. Is this a brand-new contract OR if there is (was) an incumbent performing these services?

a. This is a new requirement.

2. How would you like your proposal submitted?

a. Please see the COMBINED SYNOPSIS/SOLICITATION.

3. Are there any drawing or pictures available of the vessels to be inspected?

a. Yes, see Attachment 6 Images.

4. Is a site visit possible to look at them?

a. Yes, a site visit has been scheduled for 5 March 2025 from 0930-1130 EST.

Vendors who wish to attend the site visit must fill out and return the 5521 form by 1500 EST 27 Feb 2025. Please see Amendment 1 details for more information.

5. Is there any reference as to the size of the manway opening into each of the vessels to be inspected?

a. Yes, no manway. Use of gage or valve connections for internal camera inspection; removal of ¼” MNPT fitting for access.

6. Are there any special confined space requirements?

a. No, not entering high pressure air vessels.

7. Are the vessel entries accessible or will scaffolding need to be erected? If scaffolding is required, is that provided for or does the contractor need to provide it?

a. No scaffolding required. Entries are accessible due to vessels at knee/ waist level and horizontal.

8. Are there any special protective clothing required since this is an oxygen service.

a. No, oxygen clean will be maintained during conduct of maintenance.

9. Is there any approved couplant that can be used for the Ultrasonic readings or does this need to be a dry contact method?

a. Dry contact method.

10. What is the material for each of the vessels?

a. Cr-Mo Steel, SA 372, Grade F, Class 70.

11. Are the vessels coated or insulated?

a. No coating or insulation on the HP air vessels.