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RGD is known as Rapid Gas Decompression, AED is known as Anti-Explosive Decompression. RGD (Rapid Gas Decompression) or AED (Anti-Explosive Decompression) is a failure mechanism of O-rings and elastomer seals which is caused by the rapid reduction in pressure of the gaseous medium. When the pressure is released, the gas penetrating into the elastomer seal will expand violently, which in turn will ...
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...
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...
JST makes custom and standard PEEK back-up rings. Custom sizes up to 24” outer diameter. PEEK™ back-up rings are designed to prevent extrusion in elastomer O-ring sealing systems. Elastomer O-rings serve as effective seals for dynamic and static applications in hydraulic and pneumatic equipment systems. A drawback of elastomer O-rings is their tendency to extrude into the clearance of ma...
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...
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...
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...
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...
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...
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