• 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 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 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 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 14. 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 p...

• March 14. 2022

Valve seals precisely control the amount of oil entering the valve stem system, making them critical components in maintaining your engine’s compression levels. Having a valve stem seal that works correctly within any of your applications can save you time and money by eliminating the need for lengthy engine repairs and replacements. But how to install valve stem seals, please see below. Installat...

• March 11. 2022

The V Stack seal assembly is comprising a top adapter or anti-extrusion ring (1), Vee Rings (2) and a bottom adapter (3). In the assembly the energizing axial force is transferred between the individual packing rings so that each ring is pressed into positive contact with the mating hardware surface. Special material grades are available for a large variety of working conditions. Benefits Very rob...

• March 04. 2022

Pumpdown plugs separate cement from the displacement fluid during liner cementing operations. It released from the cementing manifold at the surface between the cement and the displacement fluid, wipes cement from the drillpipe and lands in the liner wiper plug. Applications Cementing operations during liner applications Wiping of the running string behind the cement with pumpdown plug Wiping of t...

• 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...