Pump Block/Housing: Temperature Range -20°C to 150°C

Component Specifications

Definition

The pump block or housing is a precision-engineered structural component that serves as the main body of a high-pressure pump unit. It provides mounting surfaces, alignment features, and sealed chambers for pistons, valves, and bearings while withstanding extreme internal pressures and mechanical stresses. This component ensures proper fluid flow paths, maintains component alignment, and prevents leakage in demanding industrial applications.

Working Principle

The pump housing creates sealed pressure chambers where reciprocating or rotating pump elements generate hydraulic pressure. It directs fluid flow through precisely machined passages while providing structural integrity to contain high internal pressures (typically 100-700 bar). The housing maintains geometric stability under thermal expansion and mechanical loading to ensure consistent pump performance.

Materials

High-strength cast iron (GGG-40/50), ductile iron (EN-GJS-400-18/500-7), or forged steel (42CrMo4) with hardness 180-250 HB. Pressure-containing surfaces often have hardened coatings or liners for wear resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Weight Range	5-50 kg depending on pump size
Surface Finish	Ra 0.8-1.6 μm for sealing surfaces
Pressure Rating	100-700 bar
Temperature Range	-20°C to 150°C
Flatness Tolerance	0.02 mm per 100 mm
Port Thread Standards	SAE, BSPP, NPT

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 4401, DIN 24342, ISO 1219

Parent Products

This component is used in the following industrial products

High-Pressure Pump Unit

A specialized pump assembly that generates and delivers high-pressure hydraulic fluid for descaling operations in metal processing.

View Product Details

Engineering Analysis

Risks & Mitigation

Fatigue cracking under cyclic pressure
Corrosion in aggressive fluids
Thermal distortion affecting clearances
Thread stripping at high-pressure ports

FMEA Triads

Trigger: Material defects or improper heat treatment
Failure: Catastrophic housing rupture under pressure
Mitigation: Ultrasonic testing of castings, pressure testing to 1.5x rated pressure, material certification to ASTM/EN standards

Trigger: Improper bolt torque during assembly
Failure: Gasket leakage or housing distortion
Mitigation: Use calibrated torque wrenches, follow manufacturer's torque sequence, implement torque audit procedures

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Bore diameters: H7/h6 fit, Flatness: 0.02mm/100mm, Surface roughness: Ra 0.8-1.6μm on sealing surfaces

Test Method

Hydrostatic pressure test per ISO 4401, Dimensional inspection with CMM, Material analysis per ASTM A536

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Pump Block/Housing

Manufacturer profiles associated with Pump Block/Housing.

Sourcing Pump Block/Housing from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Upper Tool (Punch)

Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.

Main Frame

The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Seal Groove

Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

Frequently Asked Questions

What are the critical quality checks for pump housings?

Pressure testing (1.5x rated pressure), dimensional verification of bore alignments, surface finish measurement of sealing areas, and material certification for pressure vessel applications.

How does housing design affect pump efficiency?

Optimized internal flow paths reduce turbulence and pressure drops, while precise bore alignments minimize internal leakage and mechanical losses, improving overall pump efficiency by 3-8%.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Pump Block/Housing