Large Flow Horizontal Double Suction Split Case Pumps for B2B Buyers

Customization:	Available
After-sales Service:	48 Hours
Warranty:	12 Months

Basic Specifications

Model NO.

COS Series

Max. Head

9.5~130m

Max. Capacity

20~12000m3/H

Driving Type

Electric Motor or Diesel Engine

Impeller Number

Single-Stage Pump

Working Pressure

Middle Pressure Pump

Influent Type

Double-Suction Pump

Shaft Position

Horizontal Pump

Pump Casing

Horizontal Split Pumps

Material

Cast Iron, Steel, Stainless Steel, Duplex S.S

Product Description

Horizontal Large Flow Double Suction Split Case Centrifugal Pumps

The horizontal split case pump is a type of centrifugal pump that features two single suction impellers or a double suction supported between bearings. The pump casing is split axially with opposing suction and discharge flanges, allowing for easy maintenance without disturbing the piping system.

These pumps are typically utilized for low-viscosity liquids such as clear water and unsaturated wastewater. They excel in high flow rate conditions where end suction pumps are insufficient, such as fire protection systems, water distribution, cooling water circuits, and industrial process flows.

Key Features

Large flow capacity and high hydraulic efficiency.
Simplified operation and low maintenance requirements.
Long operational life: Casing design life exceeds 30 years.
Customizable inlet and outlet flange positions.
Versatile material options: Cast iron, cast steel, SS304, SS410, etc.
Sealing options: Mechanical seal or gland packing.

Performance Parameters

Parameter	Range
Pump outlet diameter (Dn)	100 ~ 900mm
Capacity (Q)	72 ~ 20000 m3/h
Head (H)	7 ~ 186m
Temperature (T)	0 ~ 80ºC

Material Configuration

Item	Clean Water	Sewage Water	Sea Water
Case & Cover	Gray iron (HT250)	Ductile iron (QT500)	Duplex S.S 2205
Impeller	Gray iron (HT250)	Ductile iron (QT500)	Duplex S.S 2205
Wearing ring	Gray iron (HT250)	Ductile iron (QT500)	Duplex S.S 2205
Shaft	C.S 45	40Cr	Duplex S.S 2205
Shaft sleeve	C.S 45	S.S304	Duplex S.S 2205

Structure Diagram

Applications

Workshop & Packaging

Frequently Asked Questions

1. What is the typical delivery time for the centrifugal pumps? Delivery usually takes 15-25 working days, ensuring strictly timely arrival as per contract agreements.

2. What kind of warranty do you provide? We offer a 1-year warranty for the pump body and a 3-month warranty for the main functional working parts.

3. How are the pumps packaged for international shipping? Based on the quantity, we use durable plywood cases specifically designed for ocean and air transport safety.

4. What payment methods are accepted? We accept various payment terms including T/T, L/C, and Western Union to suit our clients' needs.

5. Do you offer after-sales support and spare parts? Yes, we provide full production reports and follow up on pump working conditions every three months. Spare parts can be dispatched within one week upon request.

6. Can the pump materials be customized for sea water? Absolutely. For sea water applications, we recommend and provide Duplex Stainless Steel 2205 for superior corrosion resistance.