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For applications with special sealing and reliability requirements, JST has developed a chevron packing set that combines its proven spring energized seal design technology with PTFE-based materials, and other high-performance polymer plastics. A typical PTFE chevron stack consists of a radial spring energized seal, several V-rings and an anti-extrusion ring. The spring energized seal is the main ...
Metal seals are versatile components that find applications in a wide range of industries and operating conditions. Here, we will discuss the different types of metal seals and their respective applications in various operating conditions. O-ring Seals: Material: Typically made from metals such as stainless steel or nickel alloys. Applications: Hydraulic systems: O-ring seals effectively prevent f...
The glyd ring is a radial sealing element composed of a polymer ring and an elastic O-ring energizer. This type of seal is typically chosen for general industrial pneumatic/hydraulic applications that require dynamic sealing elements. During installation, the elastic elastomer is compressed and the polymer ring is pushed onto the dynamic groove mating surface, forming a tight seal even under low p...
JST manufactures well service plunger pump packings in a wide variety of materials to suit specific well conditions and operating parameters, they are available in a wide range of elastomeric materials and high performance resins, including NBR, HNBR, FKM, filled PTFE, fabric reinforced rubber. to suit specific well conditions, operating parameters, and fracturing fluids. NBR Elastomers...
Modified PTFE or TFM, is a high-density copolymerized material. It has low gas permeation and reduces cold flow. Often used in the medical field as an artificial blood vessel graft and in other applications where biocompatibility is required. TFM is also FDA and USP class VI suitable. TFM remains a largely unfamiliar material in the general PTFE machine parts and seal markets. At JST, we have...
A needle valve seal is a component in needle valves, which are precision valves used to control the flow rate of liquids or gases in a system. The needle valve seal is responsible for preventing leakage through the valve and ensuring a tight seal. There are different types of seals used in needle valves, depending on the specific requirements of the application. Some common types of seals used in ...
JST S seal is elastic sealing element composed of a high modulus elastomer and two integrated anti-extrusion springs which allows the seal to withstand large compression gaps. The S seal can be customized designed based on temperature, medium, and environment. Sealing materials utilized for wellheads which need to withstand pressures as high as 15 000 psi, and temperature from –29°C to +177°C (–20...
JST designs and manufactures spring energized lip seals for ball valve. In this article, we will introduce some lip seals used for different sealing application in ball valve. Lip seal type FVR is used for ball valve seat sealing. As shown in picture Fig-1, the FVR lip seal contains four parts. 1- T ring (material: carbon filled PTFE), 2- U ring (material: carbon filled PTFE), 3-Spring (material: ...
Viton ® It is a synthetic high-performance fluoropolymer elastomer (rubber) commonly used for strict application of O-ring. According to the classification of FKM according to ASTM D1418 and ISO 1629 (hence, they are also referred to as "FKM o-rings"), fluororubber o-rings are preferred because they have high resistance to extreme high temperatures and harsh atmospheric conditions, as well as ...
6D spring energized seals outperform other sealing technologies in terms of longevity and reliability in several key ways: Extreme Operating Conditions: 6D spring energized seals are designed to withstand extreme operating conditions, including high pressure, high temperature, and aggressive chemical environments. Their ability to maintain a secure seal under these conditions contributes to their ...
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