• 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...

• July 20. 2021

Many formations are too tight to produce oil and natural gas, and require a stimulation process to extract the resources. In hydraulic fracturing, fluids carrying proppant are pumped into the ground with enough pressure to crack the rock. The proppant is left behind to hold open the cracks, while the fluid is flowed back allowing oil and gas the ability to flow to surface. Fracturing pump seal pla...

• October 11. 2021

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 ...

• 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...

• November 12. 2021

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...

• January 17. 2022

Metal End Cap Seals are one of the metal bonded elastomeric seals with the high level of extrusion resistance necessary for high pressure casing and tubing applications. JST has designed a PEEK End Cap Seals instead of Metal End Cap Seals to meet with customers special requirement. Why do we choose a non-metallic non-extrusion device as non-extrusion device for this seal? It’s because the lock dow...

• 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...

• February 16. 2022

For the installation and assembly of step seal, first install the O-ring, and then install the wear ring of step seal. First heat the wear ring, put it on the shaft, and then cool it. When installing the wear ring, first press the wear ring inward along the diameter direction, then install the wear ring into the groove, and then smooth the deformation. For installation in northern winter, the wear...