• March 03. 2022

JST Seals produces various sizes of FS seal and P seal, from 4.5" to 36". FS seal: FS seal is suitable for 15000Psi, LU temperature rating, chemicals with H2S/CO2. Below drawings show our standard FS seal groove dimension and product drawing. 26” FS seal 30” FS seal P seal: Regarding P seal, JST has two different designs. One design is rubber reinforced with two 316ss wire mesh back up rings, anot...

• March 22. 2022

Fracturing pump seals，also known as plunger pump packing or plunger packing seal, are mainly applied in fracturing trucks, mud pumps and cementing trucks for oil industry of harsh working conditions. The fracturing pump seals are combined with Top Adapter, Bottom Adapter and Pressure Rings. The number of the pressure rings is flexible, which allows the seal sealing at a wide range of pressures und...

• March 30. 2022

Stainless steel metal end caps provide an anti-extrusion mechanism and encapsulate the seal for protection. Because it contains a radially squeezed pressure energised rubber core, it can tolerate surface imperfections and mechanical damage on the wellhead bore. Special features Metal end caps are chemically bonded to element of high performance elastomer. Elastomer energises the system f...

• April 19. 2022

PolyPak seal combines the O-ring as an energizer with the lip seal to form a special sealing device, which can seal in vacuum and high and low pressure applications. It is a multi-purpose seal. PolyPak advantages: PolyPak has obvious advantages over the traditional lip seal, because there is basically no lip load in the basic seal design, so it is easy to leak under low pressure. PolyPak is an ext...

• May 13. 2022

P seal is constructed from an elastomer with back up rings for anti-extrusion. Energized by the injection of sealant, it is a static seal that is used to seal rough casing and tubing. Backup rings are available in Mesh Stainless Steel or Solid Carbon Steel. The standard P Seal is a one-piece molded seal utilizing molded-in anti-extrusion device. This design enhances assembly by eliminating the loo...

• June 10. 2022

JST produces different material spring energized lip seal. Jacket material such as PTFE, PEEK, TFM. Spring material include 316ss or Alloy spring. For different working conditions, we use different seal designs and materials. If seal works at pressure over 6000PSi, PEEK back up ring is needed. For -196°C, we would use material TFM+Alloy spring. JST has ability to produce different dimensions of sp...

• June 20. 2022

With the development of fracturing and acidizing application technology, fracturing pumps with high pressure and large flow are required. The working condition of fracturing pump is extremely bad: high pressure, high acidity, high sand content and high sand hardness. Poor working conditions make the service life of the plunger pump seals short and the maintenance frequent. Sometimes, the seals mad...

• August 19. 2022

Lip seal, also known as spring energized ring, is widely used in various fields because of its excellent sealing performance. In the production of valves under special working conditions, rubber O-rings cannot meet the requirements, so other sealing schemes shall be selected instead. The advantage of lip seal is that it can realize "self sealing" like an O-ring, that is, its sealing performance in...