Industry-Verified Manufacturing Data (2026)

Pump Housing

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Pump Housing used in the Basic Metal Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Pump Housing is characterized by the integration of Mounting Flange and Cooling Jacket. In industrial production environments, manufacturers listed on CNFX commonly emphasize High-temperature cast iron construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The main structural casing that contains and supports the internal components of a molten metal pump.

Product Specifications

Technical details and manufacturing context for Pump Housing

Definition
The pump housing is the primary structural component of a molten metal pump, serving as the outer casing that encloses and protects the impeller, shaft, bearings, and other internal parts. It provides structural integrity, contains the molten metal flow, and often includes mounting points for installation within foundry or metal processing systems.
Working Principle
The pump housing directs the flow of molten metal from the inlet to the outlet while maintaining pressure and containing the corrosive, high-temperature fluid. It withstands thermal expansion and contraction cycles while providing a sealed environment for efficient pumping operations.
Common Materials
High-temperature cast iron, Heat-resistant steel alloys, Ceramic-lined steel
Technical Parameters
  • Internal diameter and overall dimensions critical for flow capacity and system compatibility (mm) Standard Spec
Components / BOM
  • Mounting Flange
    Provides attachment points for securing the pump to the system
    Material: Heat-resistant steel
  • Cooling Jacket
    Optional component for temperature control through coolant circulation
    Material: Stainless steel
  • Inspection Port
    Provides access for maintenance and inspection of internal components
    Material: Same as housing material
Engineering Reasoning
0.5-2.0 MPa internal pressure, 600-800°C continuous operation, 0.1-0.3 mm radial clearance
2.5 MPa burst pressure, 950°C material recrystallization temperature, 0.5 mm clearance causing turbulent flow
Design Rationale: Thermal fatigue from cyclic heating (600-800°C) and cooling (200-300°C) causing crack initiation at stress concentrations; creep deformation exceeding 1% strain at 850°C under 1.5 MPa stress
Risk Mitigation (FMEA)
Trigger Molten aluminum-silicon alloy chemical attack at grain boundaries
Mode: Intergranular corrosion reducing wall thickness by 0.05 mm/year
Strategy: Silicon carbide coating with 200 μm thickness and 99.5% purity
Trigger Thermal gradient of 300°C/mm across housing wall thickness
Mode: Differential thermal expansion causing 0.15 mm distortion at flange joints
Strategy: Isothermal design with 25 mm thick ceramic insulation maintaining ΔT<50°C

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pump Housing.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Max 2 bar (29 psi) internal, 1.5 bar (22 psi) differential
flow rate: Dependent on pump size: 5-500 m³/h (22-2200 gpm)
temperature: Up to 850°C (1562°F) continuous, peak 900°C (1652°F)
slurry concentration: Max 30% solids by weight, particle size <2mm
Media Compatibility
✓ Aluminum alloys (600-750°C) ✓ Zinc alloys (400-550°C) ✓ Lead alloys (350-450°C)
Unsuitable: Chlorinated salt baths or highly corrosive fluxes
Sizing Data Required
  • Required flow rate (m³/h or gpm)
  • Operating temperature of molten metal (°C or °F)
  • Pump immersion depth and system pressure requirements

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Cavitation damage
Cause: Insufficient net positive suction head (NPSH) causing vapor bubble formation and implosion on metal surfaces
Corrosion fatigue cracking
Cause: Cyclic stress combined with corrosive fluid environment leading to crack initiation and propagation
Maintenance Indicators
  • Unusual high-frequency vibration or audible 'crackling' noise during operation
  • Visible external leakage or weeping at casing joints, especially with temperature changes
Engineering Tips
  • Implement proper NPSH margin (minimum 1.3x required NPSH) and maintain stable suction conditions
  • Apply appropriate corrosion-resistant coatings and conduct regular thickness testing at high-stress areas

Compliance & Manufacturing Standards

Reference Standards
ISO 5199:2002 (Technical specifications for centrifugal pumps) ANSI/HI 1.1-1.2 (Hydraulic Institute standards for centrifugal pumps) EN 1092-1 (Flanges and their joints for pumps)
Manufacturing Precision
  • Bore diameter: +/-0.025mm
  • Mounting surface flatness: 0.05mm per 100mm
Quality Inspection
  • Pressure test (hydrostatic/pneumatic)
  • Dimensional verification with CMM

Factories Producing Pump Housing

Verified manufacturers with capability to produce this product in China

✓ 98% Supplier Capability Match Found

P Project Engineer from Singapore Feb 10, 2026
★★★★★
"Great transparency on the Pump Housing components. Essential for our Basic Metal Manufacturing supply chain."
Technical Specifications Verified
S Sourcing Manager from Germany Feb 07, 2026
★★★★★
"The Pump Housing we sourced perfectly fits our Basic Metal Manufacturing production line requirements."
Technical Specifications Verified
P Procurement Specialist from Brazil Feb 04, 2026
★★★★★
"Found 19+ suppliers for Pump Housing on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

12 sourcing managers are analyzing this specification now. Last inquiry for Pump Housing from Thailand (43m ago).

Supply Chain Compatible Machinery & Devices

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Secondary refining furnace for high-quality metal ingots

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Molten Metal Flow Control Valve

Precision valve for regulating molten metal flow in casting and pouring operations.

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Frequently Asked Questions

What materials are best for pump housings in molten metal applications?

High-temperature cast iron, heat-resistant steel alloys, and ceramic-lined steel are optimal for withstanding extreme temperatures and corrosive environments in molten metal pumping.

Why is a cooling jacket important in pump housing design?

A cooling jacket helps regulate temperature, preventing overheating and extending the lifespan of both the housing and internal pump components during continuous molten metal transfer.

How does inspection port design affect pump maintenance?

Properly positioned inspection ports allow for visual monitoring and maintenance access without disassembling the entire pump, reducing downtime in basic metal manufacturing operations.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

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