What Information Should Be Included in a Valve RFQ?

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What Information Should Be Included in a Valve RFQ?

A supplier can quote from an incomplete schedule, but every blank field becomes an assumption. This checklist helps you decide which blanks are harmless and which ones can change the valve.

Reviewed by HSVA Valve Desk · Updated 25 September 2026
Written by: HSVA Valve Engineering Team   Reviewed by: HSVA Quality & Export Coordination
Published 25 September 2026 · Last reviewed 27 September 2026

At minimum, identify the valve duty, nominal size, pressure basis, end connection, body material, operating medium, temperature, actuation, quantity and destination. Attach the governing specification or existing-valve photo when available.

The ten fields that usually decide the quotation

Field
Why it matters
Useful format
Valve duty
Isolation, non-return, throttling or pressure control changes the suitable design.
Plain description
Size
State DN or NPS and avoid an unlabelled number.
DN100 or NPS 4
Pressure basis
PN and ASME Class are designation systems, not interchangeable price labels.
PN16 or Class 150
Connection
Flanged, wafer, lug, threaded, welded or grooved ends change dimensions and installation.
Type + standard
Materials
Body, trim, seat and seal materials affect compatibility and cost.
Specification or grade
Medium and temperature
Water, wastewater, air, steam or chemicals impose different material and sealing demands.
Fluid + operating range
Actuation
Manual, gearbox, pneumatic or electric operation needs different torque and interface information.
Method + power/signal
Quantity
Quantity by size is more useful than one total for a mixed schedule.
Per line item
Documents and tests
Late requests for drawings, certificates or witness tests can affect cost and timing.
Document list or ITP
Destination
Market requirements, packing and transport planning depend on the destination.
Country or port

What to send when the schedule is incomplete

A nameplate photograph, face-to-face dimension, connection photograph and a picture of the installation often answer more questions than a guessed model number. Mark every unknown field as “to be confirmed” rather than copying a value from a similar valve.

Commercial details belong beside the technical ones

State the required Incoterm, destination, target timing, packing requirement, inspection responsibility and quotation currency. If the order is for resale, say whether neutral packing or private-label marks are needed.

A short RFQ example

Isolation valve for treated-water line; DN100; PN16; flanged ends to the project drawing; ductile-iron body; resilient seat; gearbox operation; 24 units; hydrostatic test record and marking photos required; delivery to Jebel Ali. Stem and coating requirements to be confirmed against attached specification.

Before you send

  • Give every attachment a project or schedule reference.
  • Keep units visible in every spreadsheet column.
  • Separate mandatory requirements from acceptable alternatives.
  • Ask the supplier to list assumptions in the offer.
Send your RFQNext: read a valve schedule