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V-packings, also known as Vee packing seal and Chevron V-packings, or V stack, is a kind of stacked seal. It is combined by a male adapter, a female adapter and a number of intermediate V rings. V-packings are designed to be used in applications such as hydraulic cylinders, fracturing pumps or well downhole. Facing different working condition (temperature, pressure, media), the raw material differ...
The EFP 4-inch fracturing pump valve insert seals produced by JST uses modified TPU material, it is the consumables of fluid end valves and seats, which has excellent wear resistance and corrosion resistance. The frac pump valve insert seals are fluid end consumables, it plays important role in oilfield. It is mainly used in oil field fracturing truck, well washing truck, cement truck, plumger pum...
JST manufactures a variety of P seals. The standard P Seal is a one-piece molded seal utilizing molded-in anti-extrusion device. This design enhances assembly by eliminating the loose anti-extrusion devices used in other designs. P seal can be used to seal rough casing and tubing. The standard material is HNBR85 to 90 durometer, and the material should be suitable for PU or LU temperature rat...
Well Service Fracturing Pump Packing Seals are commonly used in high-pressure mud pumps and fracturing pumps, as a high-speed reciprocating dynamic seals. Its main function is to prevent plungers from leakage in high-speed reciprocating. Some special working conditions are taken into consideration when designing its structure and material, which make it apply to fracturing fluid, mud mediums and s...
Rod seals are the most important seal within any hydraulic sealing system, which are used to prevent leakage of hydraulic fluid to the outside of the sealing system. Rod seals should be paired with an appropriate wiper and gland housing design to ensure correct operation. Rod seals are often the critical factor in ensuring that a hydraulic cylinder operates at peak performance. Leakage throug...
The back up ring, also called anti extrusion ring, is aptly named as they do just that: they back-up an O-ring. The purpose of using the backup ring is to prevent the O-ring from extruding into the sealing gap under the system pressure. The structure of the increased back up ring will bear much higher pressure than using the O-ring alone. The profile shape of the back up ring is usually rectangula...
In the oil and gas industry, the risk and consequence of unplanned downtime is greatest in extreme environments. JST has long been committed to the provision of sealing solutions for the exploration and production of oil and gas. Wellhead is a critical part of oil and gas infrastructure. Its sealing materials need to withstand pressures as high as 15 000 psi and temperatures of 149º C. From d...
P Seal is a static seal comprising a profiled elastomeric sealing element with two anti-extrusion metal rings or stainless steel wire mesh rings. It is used in casing and tubing heads to seal rough casing and production tubing. In operation, the inside diameter (primary sealing face) of P Seal acts on the outside diameter of the casing/tubing running through it. The groove/recess in the ...
API gate valves refer to the valves which are made under the regulations set by the American Petroleum Institute. They are usually widely used in petroleum and industrial processing plants, playing an important role at shutting off the flow. And it is true that the featured and core part of them is called the wedge. In order to meet the various specifications, API gate valves are indeed designed a...
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