fire pump set

The minimum fire rated pressure of ED small fire fighting package set water supply equipment is 3 bar and the minimum fire rated capacity is 25 GPM. ED small fire fighting package set water supply equipment includes at least two power or power source driven pumping units, pressure tanks, pipes, valves and accessories, measurement and control instruments, control cabinets, outdoor rain cover, etc.
Motor: Three-phase asynchronous squirrel-cage motor independently developed and manufactured by our company, which can be controlled in production time and greatly shorten the whole set production time.
Diesel Engine: According to the different parameters of customers, we will choose diesel engines with high cost performance ratio. The main brands are QuanChai, Weichai, ShangChai, FAWDE, Cummins, etc.
Electric Pumps: Electric pumps can use vertical in-line pumps, horizontal end-suction pumps, vertical multi-
stage pumps, horizontal multi-stage pumps, split casing pumps and so on according to the different flow and head of customers.
Diesel Pumps: Diesel pumps can use vertical in-line pumps, horizontal end-suction pumps, vertical multi-
stage pumps, horizontal multi-stage pumps, split casing pumps and so on according to the different flow and head of customers.
Electronic Components: The main electric components is CHNT, if Schneider or other brand electrical are need, should mention it before place the order.
Safety Valve plays a safety protection role in the system. When the system pressure exceeds the prescribed value, the safety valve opens, and a part of the gas/fluid in the system is discharged into the atmosphere/pipeline, so that the system pressure does not exceed the allowable value, so as to ensure that the system does not cause accidents due to excessive pressure.
Pressure Tank: Water is a non-compressible medium. Generally speaking, the pressure drop of fire-fighting pipe network is normal. However, the pressure drop is very slow, the total loss of water in the pipe network isnot large, and the frequent change of pressure in the pipe network leads to frequent start-up and shutdown of pumps. Especially when the power of equipment is high, it will cause great impact on pressure sensors, relaysand motors, thus affecting the performance and life whole equipment. Therefore, it is necessary to choose the right volume of the pressure tank.

The pump body –the pump body is in the form of high-efficiency volute. The flange connection size is in accordance with UL448, FM1319, ANSI/ASME B16.1, ANSI/ASME B16.42, GB/T 17241.6(cast iron) and GB/T 9113.1(stee) PN1.6MPa, and can be used with the following standard flanges.: BS 4504:1989, ISO 7005.1:1992, DIN 2533:1976, ISO 7005.2:1988.
The rear open cover design–Can replace the rotor components without dismanting the pipeline.
Replaceable seal ring–The wear of the impeller ring can be achieved only by replacing the sealing ring, so as to restore the best operating condition of the pump and achieve low-cost operation.
Enhanced pump shaft design—The impeller and the pump shaft are designed with a conical surface to improve the matching precision and bonding strength, which is beneficial for effective locking and convenient maintenance during operation.
· Cantilever ratio is small–The cantilever ratio of the rotor ranges from 0.75 to 1.0, with good rigidity and small deflection. Its rigidity is much better than that of the same type of single-stage centrifugal pump (the cantilever ratio of IS pump is between 0.97 and 1.48).
Hydraulic balance design–Further Improve the Stability of Pump Operation, hydraulic balance design and combination of impeller dynamic and static balance.
Single-end mechanical seal design –suitable for occasions where leakage is not allowed.
Packing gland design–meets UL/FM standard design and is interchangeable with mechanical seal.
Reliable bearing structure design–Heavy-duty largesize bearings improve reliability during high-speed and heavy-duty operation.
Imported brand Sealed bearings without grease are selected as the standard configuration, bearing inner seal with high quality greaseto meet the requirements of maintenance-free and environmental protection during the life of bearings. Oil bath lubrication or grease lubrication bearings are suitable for continuous 24-hour operation and medium temperature greater than 80 C. If grease lubricated bearings or oil lubricated bearings are selected, should inform us when ordering so as to provide more suitable products.· High degree of generalization of parts–The whole series only need 4 suspensions,4 pump shafts and 10 pump covers, which effectively improves the interchangeability of parts.
Rotation direction of the pump–from the driving end, it rotates clockwise.