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Diesel Engine Fire Pump Manufactured in Strict Accordance With UL Certification

UL diesel engine fire pump, there are many structural types of diesel engine fire pump, among which, the external mixing type, on the other hand, the water discharged into the air-water separation chamber by the impeller flows back to the outer edge of the impeller through the left and right return holes. The equipped fire pump (single-stage single-suction type, single-stage double-suction type, segmental multi-stage type) can be divided into three sub-series, XBC-IS, XBC-S, XBC-D, etc., with a wide range of equipment pressure and flow. , its application can meet almost all kinds of occasions required for fire protection.

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1. Automatic start: After the diesel water pump unit receives the fire alarm/pipe network pressure/power failure/or other start signals, it can start automatically and put into full-load operation within 15 seconds;

2. Automatic charging: the battery can be automatically charged by the mains or diesel engine charging motor to ensure the smooth start of the unit;

3. Automatic alarm: automatic alarm protection for diesel engine low oil pressure, high water temperature and other faults, alarm and stop when overspeeding;

4. Automatic preheating: keep the diesel engine in a hot standby state to ensure emergency work;

5. Direct connection type: The diesel water pump unit below 360kw adopts the domestic first-class direct connection technology between the diesel engine and the water pump through the elastic coupling, which reduces the failure points, greatly shortens the start-up time of the unit, and increases the reliability and emergency performance of the unit. ;

6. Users can also request to set other alarm outputs (non-standard supply);

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    More UL LISTED Fire Pump

    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.