• July 16. 2021

JST's Spring Energized Seals, also called Lip Seals, are normally comprised of a machined polymer jacket and a spring energizer. They are available for rod, piston, and rotary applications, and can be manufactured in a variety of polymer materials depending on each application requirement. Our seals can be made of different PTFE materials, from Virgin PTFE or PTFE with fillers of di...

• November 01. 2021

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...

• February 11. 2022

Hammer Union Seal (Lip Seal) is relatively large elastomeric annular seal that is rectangular in cross section, and used in hammer union-style pipe connections to establish flow lines and prevent leakage. The hammer union seal is “actuated” when it is compressed between the coupling components when they are cinched up. Hammer Unions are usually used in the Oil & Gas Industry, in steel mills, c...

• 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...

• 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...

• 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...

• September 13. 2022

LNG Lip Seal is a type of spring energized seal, commonly used in LNG (liquefied natural gas) filling guns. Currently, it can be installed with most of the brands in China and overseas. The jacket of the LNG Fueling Nozzle Seals is made of polymer materials, which can withstand a low temperature of - 200 degrees. It is designed with a stainless steel anti-corrosion spring with special low temperat...

• September 15. 2022

Spring lip seals have been used for many years. Spring lip seals are used in a manner similar to conventional elastomer seals, such as o-rings. Elastomer seals often fail due to conditions that often occur in their operating environment, such as chemical corrosion, extreme high or low temperatures, extrusion, friction, or compression set. However, spring lip seals have different structures and do ...