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In a 6A gate valve, the seat seal application is crucial for ensuring tight shutoff, particularly in high-pressure and high-temperature environments, such as in the oil and gas industry. API 6A valves are manufactured following standards for wellhead and Christmas tree equipment, where the gate valve provides on/off control with a straight-through flow. Here’s an overview of key considerations for...
PEEK (polyetheretherketone) and PTFE (polytetrafluoroethylene, commonly known as Teflon) backup rings both play important roles in sealing applications, but they have some significant differences in material properties and application benefits. Here are their differences and their respective advantages: 1. Differences in material properties PEEK backup rings: Strength and rigidity: PEEK has high m...
Sealing for API 6D ball valve and LNG at cryogenic temperatures has its own unique set of challenges. JST has a wide range of solutions for cryogenic sealing applications. The range includes valve stem seals and valve seat seals. Compounds and designs could vary as per specific applications. The material mainly includes polymer jacket (virgin PTFE, filled PTFE, TFM, PCTFE, UHMW-PE, PEEK, etc.) and...
The environments in the oil and gas industry are extremely harsh. High pressures, temperatures, and corrosive substances pose significant challenges to equipment reliability. Seals are essential to prevent the leakage of oil, gas, and other fluids, ensuring safe and efficient operations. A seal stack is a combination of multiple sealing elements designed to provide a reliable barrier. It cons...
SPGW hydraulic seals are designed for heavy-duty applications, often used in hydraulic cylinders, offering a combination of wear resistance, low friction, and durability. Here are some key features of SPGW hydraulic seals: 1. Material: Bronze-filled PTFE (Polytetrafluoroethylene): Provides excellent resistance to wear, extrusion, and deformation. NBR/Nylon: Often combined with PTFE, these provide ...
Sealing at cryogenic temperatures has its own unique set of challenges. To provide superior protection against leakage in cryogenic valves for LNG, cryogenic seals should be designed with the following properties in mind: Jacket material that tolerates thermal cycling A spring energizer to compensate for shrinkage Anti-extrusion lip geometry JST has a wide range of solutions for cryogenic sealing ...
In the oil and gas industry, the risk and consequences of unplanned downtime are greatest in extreme environments. JST understands the demands you face every day and offers a range of fully tested and certified wellhead sealing products to reliably meet your business and technical challenges. You can trust our FS seals and S seals as well as our T seals and locked T seals to perform in the most ch...
Backup rings play a vital role in preserving the integrity of seals within pressurized aerospace hydraulic systems, minimizing leakage, and extending the lifespan of the components they protect. What are Backup Rings? The back up ring material could be PEEK, modified PTFE. PEEK™ back-up rings are designed to prevent extrusion in elastomer O-ring sealing systems. These rings are designed to close o...
Application of FFKM in O-Rings, seals and gaskets can meet the chemical resistance and high temperature requirements of strictly regulated industries. Equipment operators in critical and strictly regulated industries such as oil and gas, chemical refining and processing, aerospace, pharmaceutical and food processing, and semiconductor chip manufacturing all face a common pain point: How can the el...
JST makes custom and standard PEEK back-up rings. The PEEK back-up ring is made of polyetheretherketone (PEEK) material. PEEK is a high-performance thermoplastic with exceptional properties. It has high temperature resistance, capable of withstanding extreme temperatures without significant degradation. It also exhibits excellent mechanical strength, providing durability and reliability. PEEK is c...
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