FA9101-21-Q-0013 Solicitation Interchanges _2.pdf
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- Solicitation number
- FA9101-21-Q-0013
About this file
This document contains questions and answers regarding a solicitation for a 156-inch diameter steel flat-faced flanged butterfly valve assembly. The solicitation is being issued by the Arnold Engineering Development Complex at Arnold Air Force Base in Tennessee on behalf of the Department of the Air Force Materiel Command Test Center. The existing valve was manufactured by Henry Pratt Company in 1962 and is in need of replacement. The solicitation requests a new carbon steel valve that can interface with the existing electric motor, gearbox actuator and controls. The delivery date for the new valve is flexible but no later than the end of April 2022. Questions were asked to clarify the specifications and delivery requirements, identify the original manufacturer, and determine if bids from Chinese manufacturers would be allowed.
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Questions Answers
1 Who is the manufacturer of the current valve?
Henry Pratt Compnay was the original manufacturer of the current V71, designed in 1962.
2 Can you please provide Document 15571-20-001? In spec section 15571-20-0002 - 2.1.1., there is a reference to document 15571-21-001.
Document 15571-20-001 (SOW) has been provided by the AFPM and uploaded to solicitation attachments.
END of Questions, 1st Interchanges END of Answers, 1st Interchanges
3 Can the OD dimension of the existing valve flange or mating flange be provided? Our drawings indicate that the current flanges have an OD of 172.5”
Spec. calls out AWWA C516 (Large AWWA butterfly standard), calls for carbon steel valve (no cast iron) - Assume the existing valve is carbon steel, but it is really low pressure - so not sure why they wouldn’t want to accept ductile iron - can you ask?
The vendor is correct that the existing valve is carbon steel. There are some reasons for this and why we are asking for it in the future installation. (1) Carbon steel allows welding directly to the valve if needed in the future. (2) Ductile iron tends to be more brittle. (3) Potential porosity issues exist with ductile iron
5 Do you know who the current brand is that you’re replacing ? The current brand we are replacing is Henry Pratt Company.
6 Checking back for details on the manufacturer (serial number as well) of the current valve.
Because of the age of the valve, we’re struggling to find a serial number because it is not documented on any of the Pratt drawings. Due to the confined space nature of this valve, it would be difficult to go into the pit and check the tag # which may not contain the serial number either. We have experience with Pratt (manufacturer) in the past and know they have lost most records of this sort as they have gone through multiple ownerships. Valves of this size are often custom-built so in order to be responsive we have provided the best information we have: "Pratt Order #": 3-2083 / Assembly No: 25-10-30209
7 The delivery request is out 9 months……….is this a hard date or is there some flexibility in delivery ? The delivery date is flexible by 2.5 - 3 months. The new valve would need to be delivered to AEDC by the end of Apr 2022.
Likely sources for this size valves would be substantially Chinese. Is that allowed?
Would have to consult with our Legal Team
END of Questions, 2nd Interchanges END of Answers, 2nd Interchanges
FA9101-21-Q-0013 J5 Valve 71 Replacement
Q&A
File details come from the government source that posted it. Updated .