Shijiazhuang ultimate technology solutions co.,ltd
Pumping The Water , Pumping Our Honor
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4000GPM 80-128m COS250-600 1450rpm Horizontal Split Casing Fire Pump
COS series Horizontal Split Case Fire 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.
Features
1. All fire pumps and accessories are engineered to meet all applicable code, including UL448/FM1311, NFPA20.
2. Whether your fire pump application requires an electric motor or a diesel engine, vertical or horizontal orientation, these industry-approved pumps can be configured to meet your specific needs.
3. These pumps are designed to operate with pressures from 5 Bar to 20 bar, even in excess of 22 bar and flows from 500 gpm to 5000 gpm.
Parameters
Flow: 500 - 5,000 gpm
Head: 5-22 bar
Outlet Dia.: 80-300mm
Working Pressure: ≤ 3.5Mpa
Solid Particle: ≤ 80mg/L
Liquid Temp.: 0ºC-60ºC
Materials of Construction
| No. | Parts Name | Standard Material | Optional Material |
| 1 | Sealing Pipe Parts | S.S304 | |
| 2 | Pump Casing | Ductile Iron QT500 | |
| 3 | Coupling Cover | Steel Q235 | |
| 4 | Wearing Ring | S.S420(2Cr13) | S.S304 |
| 5 | Protecting Cover | Steel Q235 | |
| 6 | Shaft | Alloy Steel 40Cr | |
| 7 | Bearing Resist Sleeve | S.S304 | |
| 8 | Coupling Device | Cast Iron HT250 | |
| 9 | Bearing Parts | NSK or Equivalent | |
| 10 | Bearing Housing | Cast Iron HT250 | |
| 11 | Shaft Sleeve | S.S304 | |
| 12 | Impeller | S.S420(2Cr13) | S.S304 |
| 13 | Gland Packing Seals | PTFE | |
| 14 | Pump Body | Ductile Iron QT500 |
Structural Features:
1. Compact structure, space effective and much shorter axial dimensions.
2. Small vibration and low noise, achieved mainly by means of the follow:
A. The pump casing adopts the double-volute structure;
B. The rotor part has short axial dimensions and a good rigidity.
C. The pump shaft adopts the imported high-precision bearing for the support.
Working Conditions:
The maximum working pressure of volute double-suction pump system is 2.5Mpa, namely pump inlet pressure +pump lift head≤ 2.5Mpa, and the test pressure of pump static pressure is 3.75Mpa. According to the maximum pressure that the pump body can bear, the materials for body and bonnet adopt the grey cast iron(1.6Mpa), spheroidal graphite cast iron(2.0Mpa)and cast steel (2.5Mpa). Please note the pump's bearing pressure or materials in the order. This series of pump can transport the clear water or other liquids with similar physical and chemical properties as clear water with temperture T≤ 105 deg C.
Type Designation:
300 - 450(I)A
300 - diameter of pump outlet (mm)
450 - nominal diameter of impeller (mm)
I - Flow classification
A - rimary cutting of impeller