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Main performance The section of Y-ring seal is Y-shaped, which is a typical lip seal. It can be divided into wide type, narrow type and Y type according to the different proportion of height and width of the section. According to whether the two lips are equal in height, they can be divided into Yx seal rings with equal height lips for shafts and holes, Y seal rings for rods and holes with unequal...
JST Seals manufactures spring energized seals of different materials. Spring energized seals are composed of two parts: a PTFE or polymer jacket and a corrosion-resistant, metal energizer spring. comparing to other seals, the seals provide better performance over elastomeric seals and metal gaskets that typically fail. Its sealing jacket is a U-shaped shell made of high-performance non-metallic po...
PolyPak seal is a precision molded multi-purpose seal that combines an o-ring type synthetic rubber o-spring with a traditional lip seal to produce a unique sealing device capable of sealing both vacuum, high and low pressure. Traditional lip seals are prone to leakage at low pressure because the inherent lip load in basic seal design is small or non-existent. However, PolyPak is an extruded seal ...
A water pump seal is a mechanical component that helps to contain the liquid inside a pump and prevent it from leaking. The seal is usually located between the pump's rotating shaft and the pump housing. The purpose of a water pump seal is to provide a barrier between the liquid being pumped and the environment outside the pump, thus preventing leaks and contamination of the liquid. There are seve...
Choosing the right seal for your application is not easy. If you want a reliable and long-lasting performance, it’s crucial to consider the following operational conditions. Working Pressure: High pressure applications require higher durometer seals to resist extrusion. Working Temperature: Different elastomers have different low and high temperature capabilities. Installation Parameters...
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: ...
Open groove The open groove structure is the most recommended groove form. The open groove structure is a separate two-piece design. The lip seal does not need to be stretched or twisted for assembly.(Fig:4-1) Typical features: The lip seal does not need to be stretched or twisted for assembly. Lip seal can be disassembled and assembled repeatedly without causing damage to it. Two-piece structure ...
(I)Combined seals 1.Step seal: The Step seal structure is similar to that of the Glyd ring, and is composed of an O-type rubber seal and a special rectangular or trapezoidal seal filled with polytetrafluoroethylene. Step seals can be divided into hole seals and shaft seals, which only have a one-way sealing effect. Step seals are characterized by low friction, no creeping, and long service life. I...
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