• March 22. 2022

The bonded seal is used in work-over and sand control operations. With the bonding of elastomer to a steel core, this serve to prevent excessive rubber compression under loading. JST manufactures a complete size-range of rubber-to-metal bonded seals. We use an exclusive two-phase manufacturing process to produce highly-reliable bonded seals capable of controlling either conventional wellbore fluid...

• March 25. 2022

A hydraulic seal is a relatively soft, non-metallic ring, captured in a groove or fixed in a combination of rings, forming a seal assembly, to block or separate fluid in reciprocating motion applications. Hydraulic seals are vital in machinery. Their use is critical in providing a way for fluid power to be converted to linear motion. They are widely used. Hydraulic seals material Generally Hydraul...

• March 29. 2022

Lockdown Screw Seals, also called lockdown screw packing is made from elastomer and two SS metal end caps. It provides a dependable seal in multiple pressure ranges and service environments. JST has conducted the PR2 test to qualify the existing elastomer/metal lockdown screw packing to 20,000 psi at a temperature range of -50 to 350ºF. This test consisted of a 20,000 psi nitrogen gas proof test a...

• 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 06. 2022

S Seals are well suited for sealing wellheads, connectors,  downhole tools, high pressure valves and other demanding oil and gas applications. The non-extrusion springs can be fabricated from different metals. Product Highlights Alternative engineered seal design to using T Seals or O-Rings, traditional S Seals utilize metal spring for supporting sealing of various extrusion gaps. Designed as...

• April 08. 2022

Guangzhou JST Seals produces ID face seal and OD face seal for FLS valve from size 1 13/16 to 7-1/16 inch and for pressure from 2000Psi to 20,000Psi. JST provides ID face seals and OD face seals with two different materials for FLS and FLS-R valves. A common option is virgin peek spring powered by a stainless-steel spring. Another option is glass moly filled PTFE with stainless steel springs, whic...

• April 15. 2022

Packer elements are rubber seals that operate under specific down-hole conditions and provide an elastomeric seal for either short-term or long-term completion. Packer elements are used between sections of oil and gas production tubing to prevent fluids and pressure from leaking through the joints. This protects the casing, production tubing, liner and wellbore wall above and below the producing z...

• 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...