Double Suction Horizontal Split Case Centrifugal Water Pump COS200-670 (396-864m3/h @ 80-163m)
COS Series pumps are double suction horizontal split case centrifugal pump, they are single-stage, double suction, horizontally mounted, applied for general water supply, booster service, municipal waterworks, condenser cooling, water circulation, industrial service, building service, chemical plant, power plants etc.
The split case pump is the right choice for a wide range of applications with medium to high flow rates. The optimized design of the split case pump ensures high efficiency and durability.
The environmental-friendly split case pump has low maintenance requirements and can be produced in a number of materials according to the specific application requirements. Split case pumps are vailable for a wide range of flow rates and pressure heads. Available in horizontal and vertical execution and one or two-stage.
Features
High efficiency
The shapes of impeller and pump casings are optimized to achieve the highest possible efficiency for the specific design flow rate and pressure head. Off design characteristics are optimized to give each pump a wide operating range, ensuring that cavitation limits are not exceeded.
Easy maintenance
The pumps are easy to maintain as the upper half can be removed without dismantling pipe connections and driver components so that the alignment is not disturbed. In addition, our service department offers financially attractive service and maintenance contracts, which guarantee that downtime in pumping installations is kept to a minimum.
Durability
By using double suction impellers and double volute casings Sanchang supplies pumps with low vibration and noise levels. A double volute reduces radial thrust, resulting in longer service life for bearings and seals.
Split-case pumps are the workhorses of industrial and municipal applications. They are more expensive than end-suction or vertical inline pumps, and not as flexible or adaptable as vertical turbines. However, what they lack in low-cost flexibility they make up for in durability, efficiency, and dependability.
A split-case pump, properly installed, designed, and operated, can provide decades of service.Most split-case pumps are axially-split – meaning that the flange at which the pump casing separates is in the same plane as the pump axis. Radially-split pumps are also available, and are commonly used in very high-pressure and high-temperature industrial applications (boiler-feed pumps are one common application for radially-split pumps).
Parameters of COS200-670
Flow Capacity | 396-864 m3/h | Delivery Head | 80-163 m |
Inlet/Outlet Dia. | 250/200 mm | Working Pressure | ≤ 2.4 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
Water supply and booster stations.
Water purification processes.
Industrial washing.
Fire fighting systems.
Industrial and public applications.
Marine and metallurgy sectors, power plants.
Agricultural irrigation systems.
General application in refineries
To meet the demands of multiple applications, which requires that pumps or parts are constructed in a specified material, the Sanchang split case water pumps are available in a wide range of materials:
• Cast iron
• Ductile cast iron
• Bronze
• Nickel aluminum bronze
• Stainless steel
• (Super) duplex stainless steel
Here followed our recommendation of main configuration:
Parts Name | Clean Water | Sewage | Hot Water | Corrosive Liquid | Oil Liquid |
Pump Body | Cast Iron | Ductile Iron | Cast Steel/S.S304 | S.S304/S.S316/S.S2205 | S.S304/S.S316 |
Shaft | Cast Iron | S.S420 | S.S420/42CrMo | S.S630 | S.S420/40Cr |
Shaft Sleeve | Carbon Steel | S.S420 | S.S304 | S.S316/S.S630/S.S2205 | S.S304/S.S316 |
Impeller | Cast Iron | Ductile Iron | Cast Steel/S.S304 | S.S304/S.S316/S.S2205 | S.S304/S.S316 |
Wearing Ring | Cast Iron | Ductile Iron | Cast Steel/S.S304 | S.S304/S.S316/S.S2205 | S.S304/S.S316 |
Bearing | China Make/NSK/SKF/Customized | ||||
Seals | Mechanical Seals/Gland Packing Seals |