Product Name
Horizontal Split-Case Centrifugal Pump Casing

Custom Cast Iron Double-Suction Pump Housing with CNC-Machined Flanges

Product Details
This horizontal split-case pump casing is designed for large centrifugal pump systems requiring high flow capacity, stable operation, and convenient internal maintenance. Its horizontally divided structure allows the upper casing to be removed without disturbing the main pipeline connections, making inspection and servicing of the impeller, shaft, bearings, and sealing components more efficient.

The casing features an integrated volute flow passage, reinforced structural ribs, large side connection flanges, precision-machined mounting interfaces, and a rigid foot-mounted base. The heavy-duty cast construction provides the strength and dimensional stability required for continuous operation in industrial water handling and fluid-transfer applications.

The upper and lower casing sections are produced by sand casting and then CNC machined at all critical assembly areas, including split-line surfaces, flange faces, bearing interfaces, sealing positions, bolt holes, and internal alignment features. Accurate machining helps ensure reliable assembly, controlled internal clearances, and consistent sealing performance.

Available in cast iron, ductile iron, cast steel, or other specified materials, this pump housing can be manufactured according to customer drawings, samples, operating conditions, and inspection requirements. Both rough castings and fully machined pump casings can be supplied for OEM pump manufacturing and replacement projects.

Key Features
Horizontal split-case construction for easier inspection and maintenance
Suitable for double-suction and high-flow centrifugal pump assemblies
One-piece heavy-duty cast structure with reinforced ribs
Precision-machined casing joint surfaces and flange connections
Stable alignment of internal rotating and sealing components
Large inlet and outlet passages for efficient fluid flow
Rigid mounting feet for secure installation
Custom materials, dimensions, flange standards, and machining tolerances
Available as rough casting, semi-machined, or fully machined component
Manufactured according to customer drawings or samples

Typical Applications
Municipal water supply systems
Industrial water circulation
Irrigation and agricultural pumping
Cooling-water systems
Power plant auxiliary systems
Fire protection pump installations
Water treatment facilities
Mining and process-water handling
Large HVAC circulation systems
OEM double-suction centrifugal pumps

Material Options
Gray cast iron
Ductile iron
Carbon steel
Alloy steel
Other materials according to technical requirements

Manufacturing Capabilities
Sand casting
Pattern and tooling development
Heat treatment
Shot blasting and surface preparation
CNC milling and boring
Flange and split-line machining
Drilling and tapping
Dimensional inspection
Pressure and leakage testing upon request
Primer coating or customized surface finishing
Custom Manufacturing

We supply custom pump castings and CNC-machined pump components based on customer drawings or samples. Material grades, casing dimensions, flange configurations, machining allowances, surface coatings, testing standards, and inspection documentation can all be adjusted to meet specific OEM project requirements.