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Testing UL Listed End Suction Pumps

The end-suction pump literally means that water can be fed from one end of the impeller. The end-suction pump is small in size, but has a large axial force and a large bearing burden. The end suction pump is relatively reasonable in terms of low cost and widely used.

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End suction pump: The end suction pump works by rotating the impeller to make the water produce centrifugal motion. Before starting the centrifugal pump, it is necessary to fill the pump casing and the suction pipe with water, and then start the motor to make the pump shaft drive the impeller and the water to rotate at a high speed. It flows into the pressurized water pipeline of the single-suction pump. According to the material type and the different configurations of the sealing system and cooling system, the single-stage single-suction pump has a wide range of applications. The end suction pump can pump clear water media, and can be used in air conditioning, heating, pressurization, building water supply, fire protection buildings, etc. It can pump chemical media similar to water and other corrosive liquid media, and can be used in chemical, horizontal, pharmaceutical, metallurgy, petroleum and other fields.

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    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.