What This Part Is And Why It Is Made This Way
A pump or valve body has to be sound all the way through, because a leak path anywhere in the wall makes the whole casting scrap after machining. Feeding design, not grade selection, is what decides the yield.
Housings are cast in grey or ductile iron with the moulding route chosen for cavity complexity, then machined on the faces and bores.
What You Get From This Route
Resin sand and shell routes suit complex internal cavities.
Ductile iron available where pressure rating exceeds grey iron capability.
Machining coordinated so a leak is one supplier's responsibility.
Application Scenarios
- Pump volutes and casings
- Valve bodies and bonnets
- Fluid handling housings
- Water and process equipment bodies
Who It Is For
- Pump and valve manufacturers
- Fluid equipment integrators
- Buyers replacing imported housing castings
Technical Features
- Grey iron EN-GJL-150 to 300 and ductile iron EN-GJS-400 to 800
- Green sand, resin sand and shell processes
- Weight 0.2 kg - 2000 kg
- Machining coordinated with casting
What Buyers Run Into Without This Specification
- Housings leak after machining and the value added is lost.
- Internal cavities are not reproduced accurately and flow performance suffers.
- Grey iron is used at a pressure rating that needs ductile iron.
Published Material Weight And Process Data
Figures below are the published capability for cast iron. Part specific values — tolerance on individual features, finish, packing — are confirmed at drawing review and marked TBC until then.
| Grey Iron | EN-GJL-150 / 200 / 250 / 300 |
|---|---|
| Ductile Iron | EN-GJS-400 / 450 / 500 / 600 / 700 / 800 |
| ADI | ADI800-10 / ADI1200-3 |
| Weight Range | 0.2 kg - 2000 kg |
| Process | Green sand process; resin sand process; shell process |
| Selection Basis | Grade and moulding route matched to customer drawing and application scenario |
| Part Specific Tolerance | TBC — confirmed against the customer drawing |
| Minimum Order Quantity | TBC — depends on the process route selected |
| Lead Time | TBC — confirmed with the production base at quotation |
How The Part Is Made And Checked
- Green Sand — High volume production of repeat parts at the lowest tooling cost.
- Resin Sand — Larger parts and complex cavities where dimensional stability matters more than cycle time.
- Shell Process — Better surface and dimensional accuracy for mid size batches.
Quality management is based on ISO 9001 and covers supplier management, raw material inspection, production process control and final inspection. Inspection results are archived and traceable.
Options And Alternatives
Parts are produced to the customer drawing rather than to a fixed catalogue item, so material grade, machining scope, surface treatment and packing are all specified per order. Machining, dimensional control, surface treatment and necessary pre-assembly can be added to the same supply route.
Where another process family would suit the part better — for example a forging in place of a casting for a shock loaded connector — that comparison is raised during drawing review rather than after tooling is committed.
How To Specify This Part
State the design pressure and the test requirement. Whether the body is pressure tested before or after machining changes where the risk sits, and it is worth agreeing explicitly at quotation.
- Send the drawing with material, quantity, quality standard and target delivery date.
- State the inspection class and the zones it applies to, rather than a general note.
- Confirm the packing requirement and the lifting equipment available at the destination.
Related Guides
Other Parts In This Range
Mechanical Wear and Conveying Components
Screws, flights and wear surfaces
View specifications
Ductile Iron Structural Brackets
Ductile iron support structures
View specifications
Disc Type Iron Castings
Flat discs, plates and covers
View specifications
Wheel and Transmission Components
Pulleys, wheels and drive iron parts
View specificationsPump and Valve Housing Castings — Frequently Asked Questions
Which grade suits a pressure carrying body?
Grey iron is used at moderate ratings; ductile iron grades EN-GJS-400 and above are proposed where higher strength or pressure rating is required, confirmed against the drawing.
Can complex internal cavities be cast?
Resin sand is used for larger parts and complex cavities, and the shell process gives better surface and dimensional accuracy for mid size batches.
What do you need to prepare a quotation?
Drawings, material, quantity, quality standard and target delivery date.
Which inspection is included?
The inspection scope is agreed during drawing review. Better surface and dimensional accuracy for mid size batches.
Get A Quotation For Pump and Valve Housing Castings
Send the drawing and the application. We will confirm the process route, the production base and the inspection scope before quoting.