CHANGSHA SANCHANG PUMP CO., LTD.
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Double Suction Split Case Fire Fighting Water Pump COS-F250-600 (3000-5000gpm 90-120m)
The XSF series Horizontal Split Case Fire Fighting Water Pumps are engineered for reliable operation upon demand. All fabricated parts are standardized and accurately machined for true alignment, increasing overall durability. Precision balancing of all rotating components provides mechanical dependability, reliable operation and minimal maintenance. Impellers are constructed with double inlets that practically eliminated end thrust while boosting operating efficiency.
Features
* Axially split casing – rotating element can be removed without disturbing pipework
* Exceptional hydraulic efficiencies
* Double entry reduce end thrust force, increase efficiency and bearing life
* Stainless steel impellers and shaft as standard
* Internal high efficiency coating as standard
* Wide operating range and extended bearing life
* Reduced efficiency degradation
* Comply to FM and/or UL standards (NFPA 20, UL448 and FM1311)
Parameters of COS-F series Split Case Fire Fighting Water Pump
| Flow Capacity | 3000-5000 gpm | Delivery Head | 90-120 m |
| Inlet/Outlet Dia. | DN300/DN250 mm | Working Pressure | ≤ 1.2 MPa |
| Liquid Temperature | 0 - 80 ℃ | Driven By | Electric Motor / Diesel Engine |
| Seal Type | Mechanical seal / Gland packing | Liquid | Clean water or similar |
| Material of Construction | Cast Iron / Cast Steel / S.S304 / S.S316 / Duplex S.S2205 | ||
Applications
Industrial fire fighting system,
Residential fire fighting system,
Commercial fire fighting system,
Ware house fire fighting system,
Boat & Sea platform fire fighting.
Main Parts Configuration
To meet the NFPA20 standards, the pump was constructed with the following materials:
| Parts Name | Material of Construction (Comply with NFPA20) |
| Pump Case | Ductile Iron |
| Shaft | 40Cr / 35CrMo / 42CrMo/S.S420 |
| Shaft Sleeve | S.S304 |
| Impeller | S.S304/Bronze |
| Wearing Ring | S.S304/Bronze |
| Bearing | China Make/NSK/SKF |
| Seals | PTFE Packing Seals/Mechanical Seals |