F1300/F1600 drilling pump air bag capsule KB75 model wear-resistant high-pressure sealing accessories

Description :

  The air bag capsule is a key buffering component of the hydraulic end of oil drilling pumps, mainly used in the air bag assembly of high-power mud pumps such as F1300 and F1600. Its core function is to utilize the compressibility of nitrogen or air filled inside to absorb the pressure pulsation generated by the reciprocating motion of the mud pump piston, making the flow of mud in the discharge manifold smoother, thereby protecting the high-pressure manifold, valves, and instruments, and extending the overall service life of the drilling pump. The KB75 model is designed for specific specifications of air case shells, which need to withstand high-frequency pressure alternating loads. It is an important vulnerable component to ensure the continuity and safety of drilling operations.

    KB75 air case capsule is usually made of high-performance synthetic rubber, such as nitrile rubber (NBR) or neoprene, which has excellent oil resistance, mud corrosion resistance and aging resistance. The structural design must strictly match the internal geometric dimensions of the F1300/F1600 drilling pump air case to ensure the sealing reliability after installation. The typical working temperature range is usually between -20 ℃ and+80 ℃, depending on the rubber formula. The product manufacturing must comply with API Spec 7K or relevant industry standards for petroleum drilling and production equipment components, undergo strict pressure resistance testing and air tightness testing to ensure that no rupture or leakage occurs under working pressures of up to 30MPa or even higher, and ensure long-term stable physical and mechanical properties.

When selecting, it is necessary to confirm the specific model of the drilling pump (such as F1300 or F1600) and the specific specifications of the air case. Pumps of the same model produced by different manufacturers may have slight differences in interface dimensions. It is recommended to check against the old part drawings or physical dimensions. KB75, as a specific code, usually corresponds to a specific volume and connection thread specification. If the working conditions contain highly corrosive chemical additives or extreme high temperatures, special rubber capsules need to be specially customized. Not applicable to non specified models of air bags, forced installation may result in seal failure or premature damage to the capsule. When purchasing, it is necessary to clarify whether the upper and lower connecting flanges or fasteners are included, usually the capsules are separate rubber parts.

Before installing the air bag capsule, it is necessary to thoroughly clean the inner wall of the air bag shell, remove burrs and residues, and prevent scratching the surface of the capsule. Special lubricants should be used during installation to avoid the use of substances such as grease that may corrode rubber. Inert gas (such as nitrogen) should be used for inflation, and the use of oxygen or compressed air is strictly prohibited to prevent explosion risks. The initial inflation pressure is usually set at 20% -30% of the pump working pressure, and the specific value should refer to the drilling pump operation manual. In daily maintenance, it is necessary to regularly check whether the capsule has bulges, cracks, or leaks. If the pressure cannot be maintained or bubbles appear in the mud, it should be replaced in a timely manner. When storing, it should be kept away from light, dry, and away from ozone sources.

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