Single Stage Horizontal Centrifugal End Suction Fire Pump Set With Diesel Engine

DEMANDS INFO FORM8.31.51.pdf

End Suction Pump Series with Hydraulically balanced impeller to extend bearing life. Available in electric motor or diesel engine driven configurations.

Pump Type: ESF65/20 UL/FM

Q=500gpm H=110psi n=3550rpm

Engine: NM Fire (UL)

Model: NM4-105

64KW @ 2950rpm

Contro Panel: Eaton (UL/F,) FD120-L1

Jockey Pump: CDL12-5

Q=50gpm H=110psi 2pole 5.5kw

Features and Benefits

• Top centerline discharge with foot supported casing.
• Ease of installation.
• Simplifies piping layout.
• Reduces problems associated with piping strain.
• Self-venting design eliminates the need for automatic air release valve.
• Rear pullout design supplied as standard with spacer coupling.
• Ease of maintenance, eliminates disturbing driver or piping when removing rotating element.
• Hydraulically balanced impeller extends bearing life and assures smoother operation.
• Available in electric motor or diesel engine driven configuration.

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.

Service