Valve Body Leak-Test and CMM RFQ Checklist

Valve body RFQs can fail when suppliers quote the body shape but do not quote the same port, thread, sealing, leak-test, and inspection assumptions. Use this checklist before supplier comparison.

Start valve body RFQ Check RFQ readiness

RFQ evidence paths

Valve body OEM RFQ Hydraulic valve body product proof Valve body manufacturer page RFQ readiness check Inspection and quality path Supplier capability sheet Quote readiness checklist

Minimum Package

What to include before asking for price

2D drawing and revision status

STEP or 3D model when available

Material or alloy requirement

Annual volume or batch quantity

Port and thread standards

CNC machining scope and deburring requirements

Leak or pressure-test requirement

CMM, thread-gauge, material certificate, FAI, or PPAP records

Any impregnation, repair, porosity, or cleanliness policy

Quote-Sensitive Features

Features that change supplier assumptions

Port location and thread gauge requirement

Sealing face flatness and surface finish

Machined cavity, bore, or spool alignment

Wall thickness around pressure zones

Thread depth and burr-control requirement

Leak-test pressure, medium, hold time, and acceptance criteria

CMM datum and report format

Plugging, cleaning, and packaging requirements

Supplier Questions

Questions buyers should ask before comparing valve body quotes

Are all ports and threaded features included in CNC scope?

Is thread-gauge inspection included?

Is leak or pressure testing included, sampled, or excluded?

What CMM datum and report format are assumed?

What porosity, impregnation, or repair policy is allowed?

Are cleaning and deburring requirements included?

Which features drive tooling, fixture, or inspection cost?

Review leak-test, thread, and CMM assumptions before pricing

Bohua can review a non-confidential valve body package and separate casting blank, CNC machining, leak-test, port/thread inspection, and CMM reporting assumptions before supplier comparison.

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FAQ

Valve body RFQ questions

Why does a valve body RFQ need leak-test and CMM details?

Valve body quotes can vary widely when suppliers assume different port, thread, sealing, leak-test, and CMM scopes. Defining these before pricing makes supplier comparison more reliable.

What inspection records should be requested?

Common records include CMM report, thread-gauge results, material certificate, FAI, PPAP checklist, leak-test record, and buyer-specific traceability fields. The exact records should match the application and approval process.

Can Bohua review a valve body package before a full quote?

Yes. Bohua can review a non-confidential drawing or summary to identify quote-sensitive assumptions around casting blank, CNC machining, leak-test, thread inspection, and CMM reporting.