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New type of shield pump for the petroleum refining industry

2018/06/01 09:41
The shielded pump produced by Dalian Baolong Pump Manufacturing Co., Ltd. has obvious advantages compared with the petrochemical process pump.
    1. Flammable and explosive working conditions: petrochemical pump with mechanical seal, sealing principle The machine seals the mirror ring to form a liquid film when rotating at high speed, and cools the machine seal. There is a hidden danger. The shielded pump is explosion-proof and completely leak-free. Explosion-proof grade DIIBT3/DIIBT4, protection grade: IP54/IP55, more suitable for flammable and explosive conditions;
    2. The petrochemical process pump is compared according to the API610 standard according to the PLAN11/PLAN11+52 scheme of the machine seal standard API682: the inlet pressure is too large, resulting in a short service life of the PLAN11 machine seal. The PLAN11+52 solution resulted in excessive procurement costs. The use of the shield pump can be designed according to user requirements, regardless of the inlet pressure.
    3. Comparison of use cost: In addition to impeller, pump body and other components, petrochemical pump 2 years spare parts generally need to report bearing / machine seal / shaft nut / shaft / bearing circlip / plum pad / coupling / machine sealing Covers, etc., and the shield pump generally only needs to report the bearing / bushing + thrust plate.

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