Custom Centrifugal Water-Pump Body Sand Castings — HT250, QT500-7 or Cast Steel with CNC-Machined Flow Passages
Direct factory support
Get a quote that fits your project
Send your drawing or product reference, material grade and required quantity. Relia will review the requirements with you.
- Drawing & specification review
Confirm the supply scope and critical requirements.
- Samples before custom production
Review inspected samples before approving a batch.
- Inspection documents
Agree material and dimensional records for your part.
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MaterialCast Iron HT250 / Ductile Iron QT500-7 / Cast SteelCasting ProcessSand Casting
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Weight Range1 kg - 2000 kgNDTUT / MT / Radiographic Testing Available
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Surface TreatmentAnti-rust Primer + Top CoatQuality Control100% CMM Inspected with Dimensional Report
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Material CertificateAvailable (Mill Certificate / EN 10204 3.1)Lead TimeSample 7-15 Days / Bulk 15-30 Days
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After Warranty ServiceOnline Technical Support / Video CallExport MarketsJapan / USA / France / Germany / Australia / Southeast Asia
Centrifugal water-pump bodies are offered through OEM/ODM sand casting with CNC machining for the required interfaces and flow-passage geometry. Material choices include HT250 cast iron, QT500-7 ductile iron or separately selected cast steel, defined against the actual pump-body drawing.
Connect the flow passage to the mounting and seals
Provide the internal passage geometry together with the mounting, connection and sealing interfaces. Identify the dimensions requiring CNC machining and describe the service medium and operating requirements. This gives the body enquiry a defined component scope within the pump design.
Choose inspection methods for the casting
UT, MT and radiographic testing are available options. Specify the methods, inspected areas and acceptance limits needed for the selected material and geometry. The stated quality scope is 100% CMM inspection with a dimensional report, so identify the dimensions and datums that the report must cover.
- Select HT250, QT500-7 or the complete cast-steel grade.
- Submit passage, mounting and sealing-interface drawings.
- Mark machined dimensions and inspection datums.
- Define NDT coverage and dimensional acceptance.
- Request a mill certificate or EN 10204 3.1 material document as required.
Specify the coating and technical-support needs
The surface system is anti-rust primer plus top coat. Mark coated areas and any machined interfaces that need a different condition. Online technical support and video calls are offered after warranty; keep the approved drawing, inspection report and material-document requirements with the order to support discussion of the actual supplied body.
