NFPA-20 Centrifugal End Suction Fire Pump One Stage For Oil Terminals

Product Specification

For Firefighting Use Centrifugal End Suction Fire Pumps 250GPM @ 152PSI By UL / FM Listed

End Suction Centrifugal Pump Introduction:

End suction centrifugal pumps get their name from the pathway the water takes to enter the pump. Typically the water enters one side of the impeller, and on horizontal end suction pumps, this appears to enter “the end” of the pump. Unlike the HSC the suction pipe and motor or engine are all parallel, eliminating the concern about pump rotation or orientation in the mechanical room. Since water is entering one side of the impeller, you lose the ability to have bearings on both sides of the impeller. Bearing support will be either from the motor itself, or from the pump power frame. This prevents the use of this type of pump on large water flow applications.

The appeal of an end suction pump is usually its lower initial cost. If the pump can perform at a given rating and pressure, then this type of pump is adequate. If diesel-engine driven, another advantage is the ability to have an engine parallel and close to a wall (assuming proper air venting is considered). This can save space in a mechanical room piping layout.

The removal of the impeller requires pulling the impeller back out of the casing, which requires removal of the motor to provide space for this to happen. Often this is a more difficult procedure for those maintaining the pump.

Parameters:

NFPA20, UL, FM, EN12845,CCCF

How it Works:

The end suction centrifugal pump normally contains a single impeller and a spiral like casing. The fluid that is being pumped moves along the impeller’s vanes, which increases the fluid’s velocity. From there the fluid is moved into the spiral like casing, where the high velocity is transformed into high pressure by a diffusion process.
These types of pumps are usually powered by an A.C. electric motor, although some are D.C. motor driven, as well as air driven motors, hydraulic motors, gasoline and diesel engine driven and steam turbine driven. These pumps may be close-coupled, with the impeller directly attached to the driver shaft without a separate coupling between them. Alternatively, they may be mounted on a frame, where the pump has its own bearings and a coupling that separates the motor and the pump.

Performance Ranges:

Applications:

The end suction centrifugal pump is useful in various residential, industrial and commercial applications. Due to the fact that the pumps are highly common and readily available from many suppliers, their prices are usually very attractive.

Standard end suction centrifugal water pumps are normally close coupled and manufactured from standard iron or a variety of plastics. Pumps that are meant for more heavy duty commercial and industrial applications are often mounted on a bedplate with a coupling that separates the motor and the pump. These are usually available in stainless steel and more exotic alloys or plastics for corrosion resistance, while others are manufactured from hardened iron for mining, slurry and dredging applications.

Product Type:

End Suction Fire Pump

NFPA20 Package

• Five Advantages of CNP NM FIRE

 ​​  ①The late-mover advantage of products, we R&D better fire products than other Suppliers;   ②Have the most complete and all series of fire pump models;   ③Have listed diesel engines with self-owned brand--- NM FIRE；   ④Understand the technology of fire- fighting products and fire- fighting system better than other competitors and have better services；   ⑤Shorter delivery time.

• FAQ

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   Q1.Do you have the UL-LISTED Fire Pump Sets?  Yes, We have the UL/FM and NFPA standard Fire Pump Sets.   Q2.I need your motor drive End-suction/Split-casing fire pump, what information shold I sent to you ?  Sir/Madam,you can privide the Capacity, Heed, Voltage and Frequncy,we will make the quotation for you,If you need Jockey Pump or other accessories, please tell us together.   Q3.If I need your Diesel Engine Drive End-suction/Split-casing fire pump, what information shold I sent to you ?  You can sent the Capacity Heed, Temperature and Altitude (temperature and altitude will affect the performance of diesel engines).If you need Jockey Pump or other accessories, please tell us Voltage and Frequncy or accessories together.   Q4.I need the UL/FM Vertical Tubine Fire Pump Set ,please sent me the price.  For the motor Diver Vertical Tubine Fire Pump Set: you shoul give us the Capacity, Heed, Voltage Frequncy and the tank deep.  For the Diesel Engine Drive Vertical Tubine Fire Pump Set:you should give us the Capacity, Heed and the tank deep.  If you need Jockey Pump or other accessories,please tell us together.

  

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