Stainless Steel Pump Body for Water Pump

The Stainless Steel Pump Body for Water Pumps is a reliable, corrosion-resistant solution designed for efficient fluid transfer in clean water, wastewater, and light-slurry applications. Manufactured from 304 (UNS S30400), 316L (UNS S31603), or super duplex 2507 (UNS S32750) via sand casting or CNC machining, these bodies feature streamlined internal contours and reinforced bases to minimize hydraulic losses and withstand mechanical stress.

Engineered with flanged or threaded connections to meet ISO 228 and ASME B16.5 standards, the pump bodies offer easy integration with impellers, seals, and bearings, ensuring compliance with NSF/ANSI 61 for potable water applications.

This casting part is a pump body, designed for vertical pipeline water pumps. The special inside structure requires the use of a soluble cores.The narrow channel issue is effectively solved, and precise pump casings are provided to withstand high pressure, ensuring optimal pump efficiency.

Hydraulic Efficiency Optimization: CFD-analyzed flow passages reduce turbulence, achieving up to 88% pump efficiency in clear water and 80% in low-solids slurries (≤ 5% solids by volume).

Corrosion Resistance: 316L bodies resist pitting from chlorinated water (≤ 500 ppm Cl⁻), while super duplex 2507 handles seawater (≥ 35,000 ppm Cl⁻) and acidic wastewater (pH 2-4), eliminating the need for external coatings.

Structural Reinforcement: Ribbed bases and thickened flanges withstand differential pressures up to 64 bar (928 PSI) and thermal expansion (up to 200°C/392°F), reducing deformation risks in high-head applications.

Modular Design: Split-case configurations allow easy access to internal components for maintenance, with replaceable wear rings in the casing bore to extend service life by 20% in abrasive environments.

This pump body is the main part of the vertical pipeline centrifugal pump.

When assembled with an impeller, connecting part, and pump shaft , it provides efficient and reliable solutions for fluids transportation.

The vertical pipeline centrifugal pump is specially designed to deliver clean water and other clean liquid with physical nature. This type of pump housing is widely used in water treatment, food&beverage, medical, chemical, oil&gas and energy industry.

Municipal Water Supply: Used in centrifugal pumps for water treatment plants and distribution networks, with 304 bodies providing cost-effective corrosion resistance in chlorinated drinking water.

Wastewater Treatment: Deployed in submersible and dry-installed pumps for sewage and stormwater management, where 316L bodies endure hydrogen sulfide (H₂S) corrosion and biofouling.

Irrigation Systems: Integral to agricultural pumps for transferring well water and fertilizers, with smooth internal surfaces reducing mineral scale buildup and improving flow consistency.

Industrial Cooling: Forms the core of cooling water pumps in power plants and manufacturing facilities, with super duplex 2507 bodies resisting erosion from silt-laden cooling fluids (≤ 200μm particles).

Q: What is the maximum particle size these pump bodies can handle?

A: Standard designs pass particles up to 10mm; custom wide-passage bodies accommodate solids up to 30mm, ideal for wastewater and irrigation applications.

Q: Can the pump body be used with non-stainless steel impellers?

A: Yes—compatibility with bronze or cast iron impellers is ensured via sacrificial anodes or dielectric couplings to prevent galvanic corrosion in mixed-metal systems.

Q: How is the pump body tested for leak tightness?

A: Hydrostatic testing at 1.5x the rated pressure for 30 minutes is standard, with helium leak testing available for critical applications requiring <1x10⁻⁹ mbar·L/s leakage rates.