Pump Casing Product Example to RFQ Package: Buyer Checklist

# Pump Casing Product Example to RFQ Package: Buyer Checklist

A pump casing product page is useful only if it helps the buyer move from "this looks similar" to a quote-ready drawing package. Many sourcing teams save a representative product example, then send a short message such as "please quote pump casing." That is not enough for a casting supplier to price tooling, machining, leak testing, inspection records, or export assumptions.

This guide shows how to use Bohua's pump casing product proof page as the starting point for a real RFQ package. If you are still choosing the route, start with Resource-to-RFQ next steps. If your drawing is ready, use the RFQ landing page or request quote form.

Step 1: identify what the product example proves

The product example should not be treated as a stock part. Use it as evidence that the supplier can discuss a similar family of castings. For pump casings, the buyer should check whether the example relates to:

• •pressure-sensitive housing geometry
• •A356 or A356-T6 gravity casting review
• •machined sealing faces
• •bearing seats, ports, bores, threads, or flange surfaces
• •CMM, material certificate, leak-test, or first-article records
• •export-ready supplier communication

If the example matches only the general shape, ask the supplier which assumptions still depend on your drawing.

Step 2: write the drawing package clearly

A useful pump casing RFQ should include:

• •2D PDF drawing with revision status
• •STEP or IGES model when available
• •alloy and temper requirement, or accepted equivalent
• •target annual volume and sample quantity
• •machining scope for datums, ports, bores, threads, and sealing faces
• •surface treatment, coating, or cleanliness requirement
• •destination country and Incoterm assumption

If the drawing is still under NDA, use Contact for a pre-RFQ fit screen and share only the part family, approximate size, volume, material target, and inspection needs.

Step 3: define leak-test scope before asking for price

Pump housings often fail commercially because leak-test assumptions are vague. A supplier cannot price the same way if one buyer expects a simple air test and another expects documented pressure-decay or helium testing.

Write the leak-test requirement with:

• •test medium such as air, water, oil, nitrogen, or helium
• •test pressure and units
• •hold time or measurement window
• •acceptance criteria
• •sampling plan
• •whether records are needed by serial number or batch

For a deeper checklist, use Pump Housing Leak Test RFQ Requirements.

Step 4: separate casting, tooling, and machining assumptions

Ask the supplier to quote these lines separately when possible:

• •casting tool or mold
• •core box, insert, trim, or fixture needs
• •raw casting piece price
• •CNC machining
• •leak-test fixture or inspection fixture
• •surface treatment and packaging

This helps procurement compare suppliers fairly. A low casting price may exclude machining fixtures, CMM reports, or leak-test records.

Step 5: connect the product example to the right Bohua route

Use these Bohua pages based on the buyer's situation:

• •Pump casing product proof when the buyer wants a similar product-family example.
• •A356-T6 pressure-tight pump housing RFQ when leak-test criteria and machined sealing faces drive quote quality.
• •Pump housing OEM quote when the buyer needs the broader pump housing quotation route.
• •Resource-to-RFQ next steps when the buyer is still organizing drawings, inspection scope, supplier questions, or process-fit review.
• •Request quote when the drawing package is ready.

Buyer checklist before sending

Before sending a pump casing RFQ, confirm:

• •Is the product example close enough to your part family?
• •Have you marked sealing faces, ports, bores, and machined datums?
• •Is the leak-test method or acceptance criterion defined?
• •Is the annual volume realistic by phase: sample, pilot, production?
• •Do you need CMM, material certificate, FAI, PPAP, or traceability records?
• •Is the quote request clear about tooling ownership and destination?

FAQ

Can Bohua quote from a product example only?

Only a rough discussion is possible. A quote-ready pump casing RFQ needs drawings, material, volume, machining scope, leak-test expectation, and inspection records.

Should the leak-test fixture be quoted separately?

Often yes. It helps the buyer see whether a supplier included fixture design, test setup, and records in the total price.

Which page should a buyer open first?

Open the product proof page first if you want similar-product context. Open Resource-to-RFQ next steps if you are still preparing the package. Open the RFQ page when files and assumptions are ready.