KB75 mud pump air bag capsule, natural nitrile rubber, oil resistant, corrosion-resistant, high-pressure, fatigue resistant

Description :

  The KB75 mud pump air bag capsule is a key buffering component in the drilling fluid circulation system, mainly used to absorb pressure pulsations generated during the operation of the mud pump. This component effectively reduces pipeline vibration, stabilizes pump pressure output, and protects pressure gauges and backend manifold equipment by providing elastic isolation between the compressed air filled internally and the external mud medium. As the core component of the mud pump pulse jet mud blocker, it directly determines the stability and equipment life of drilling operations, and is suitable for mud transportation conditions of various oil drilling rigs and workover rigs, solving the problem of pipeline fatigue fracture caused by pressure fluctuations.

The KB75 air bag capsule is made of high-quality natural rubber and nitrile rubber composite material, which has excellent physical and mechanical properties. Its structural design complies with API standard specifications and can withstand the high-pressure environment of drilling sites, with a typical working pressure range covering conventional drilling requirements. The nitrile rubber layer provides excellent oil resistance and can effectively resist chemical erosion from crude oil and oily mud; The natural rubber layer ensures good elastic recovery and tear resistance. The product undergoes strict vulcanization process to ensure uniform wall thickness, no bubbles or impurities, and excellent high-pressure fatigue resistance. It can maintain structural integrity under frequent pressure alternating loads and prevent early failure.

When selecting the KB75 mud pump air case capsule, it is necessary to strictly check the mud pump model and the flange interface size of the air case to ensure installation compatibility. This category is specifically designed for mud pump systems and is not suitable for clean water pumps or low viscosity medium delivery scenarios, as different media have different requirements for rubber swelling rate. Compared with ordinary rubber airbags, the KB75 model has been optimized for the high wear and corrosion characteristics of drilling mud. If the working conditions contain a large amount of acidic gases or extreme high-temperature steam, the tolerance limit of the rubber formula needs to be further confirmed. When purchasing, attention should be paid to the rubber hardness index and tensile strength to avoid a decrease in cushioning effect or easy damage caused by the material being too hard or too soft.

Before installing the KB75 air case capsule, the interior of the air case shell should be thoroughly cleaned to remove sharp foreign objects such as rust and welding slag, in order to prevent puncturing of the capsule. When inflating, inert gas (such as nitrogen) should be used and a dedicated pressure reducing valve should be equipped. It is strictly prohibited to directly inflate at high speed with oxygen or compressed air to prevent static sparks or oxidative aging. In daily maintenance, it is necessary to regularly check whether there are bulges, cracks, or severe signs of wear on the outside of the capsule, monitor the fluctuation of pump pressure, and if the pressure stability is found to have deteriorated, promptly check whether the capsule is damaged or leaking. It is recommended to establish a regular replacement cycle based on the intensity of drilling operations to avoid sudden rupture affecting drilling progress.

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