26Q3113 Vendor Qs -260312.docx
DOCX document 15 KB Posted
- Attached to
- Vent Silencer
- Solicitation number
- SPMYM326Q3113
About this file
This is a Questions and Answers document for Solicitation SPMYM326Q3113, a Request for Quotation (RFQ) for a Vent Silencer issued by the Defense Logistics Agency Land and Maritime. The document addresses vendor clarifications submitted in response to the RFQ, as updated through Amendment 02 dated March 12, 2026.
The Q&A clarifications address critical technical specifications for the vent silencer design, including flow rate requirements, pressure and temperature parameters, and acoustic performance standards. Key clarifications confirmed that vendors should design the silencer to a maximum inlet pressure of 120 PSIG (rather than maintain that pressure), that the diffuser component should be designed to ASME Code Section VIII, Division 1 standards (though not necessarily code-tested due to its open atmospheric design), and that vendors should reference updated Material Specifications for definitive guidance on maximum air flow capacity, design flow rates, temperature ranges, maximum pressure ratings, continuous versus intermittent venting parameters, and the measurement distance for the 85 dBA noise requirement. The RFQ specifies a 12,000 SCFM (or greater) intermittent air flow capacity at inlet conditions of 125 PSIG (or greater) and -5 degrees Fahrenheit or less. Vendors are required to submit technical data, descriptive literature, traceability documentation, detailed specification sheets, drawings, manufacturing plans, and applicable certifications to demonstrate compliance with specifications, with failure to provide this information resulting in technical unacceptability.
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Other files
| File | Type | Posted |
|---|---|---|
| 26Q3113 Vendor Qs -260317.docx | DOCX document | |
| SPMYM326Q3113 RFQ Vent Silencer - Amend03.docx | DOCX document | |
| SPMYM326Q3113 RFQ Vent Silencer - Amend02.docx | DOCX document | |
| 26Q3113 Vendor Qs -260310.docx | DOCX document | |
| SPMYM326Q3113 RFQ Vent Silencer - Amend01.docx | DOCX document | |
| SPMYM326Q3113 Attachment 1 SKETCH.pdf | ||
| 26Q3113 Clauses - Full Text.docx | DOCX document | |
| SPMYM326Q3113 RFQ Vent Silencer.docx | DOCX document |
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Text version
SPMYM326Q3113 Vent Silencer Questions – as of Amendment 02 3/12/2026:
Q1) If you need the silencer to handle more flow or greater or lower, then that needs to be advised as that makes it too open ended. For example if we design the silencer to vent 12,000 SCFM and it vents 25,000 SCFM, then the silencer could fail and blow up. We design to a maximum and the silencer does not handle more. Is this ok?
A1) See updates to Material Specifications.
Q2) The specification and sketch show 12,000 SCFM (or more) intermittent air flow. We need to know the maximum air flow through the vent or control valve. The specification and sketch show 125 PSIG (or greater) pressure rating at inlet. We need to know the pressure and temperature of the air upstream of the vent or control valve. Can you please provide the additional information in the fill-in data sheet to ensure we have all of the information we need to quote?
A2) See updates to Material Specifications.
Q3) Please see below clarifications we will need in order to prepare an accurate quote for you:
• The flow is described as “12,000 SCFM or more”. What should be our design flow rate?
• What is the temperature range of the air flowing through the pipe? Or is this system venting air at -5 deg F or less? The temperature is called out as “-5 deg F or less”
• What is the maximum pressure of the air? You called out “125psig or greater”
• Is this an intermittent or a continuous vent?
• At what distance from the silencer outlet should we calculate the 85dBA? 3ft, 5ft, 20ft…(?)
A3) See updates to Material Specifications.
Q4) We’ve reviewed Revision 1 of the RFQ and request clarification of note 3: Max 120 psig inlet pressure and note 8: ASME Section VIII, Div. 1 code diffuser.
4a) Note 3: Is the inlet required to create and maintain 120 psig or does it just need to be designed to 120 psig?
4b) Note 8: The diffuser isn’t a restrictive device. It’s open to atmosphere and doesn’t create or maintain any pressure. It can’t be ASME code tested because the openings in the perforated steel can’t be sealed. Does note 8 require the diffuser to be built to ASME code Section VIII, Div. 1 or designed to ASME code section VIII, Div. 1?
A4a) Designed to 120 PSIG.
A4b) Designed to ASME Code Section VIII, Div 1.
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