English
Products
In LNG terminals, liquid nitrogen systems, and cryogenic pipelines (-196°C), standard elastomer seals fail catastrophically—brittle fractures, shrinkage-induced leaks, and cold flow compromise safety. As a leading cryogenic seal manufacturer, we engineer PTFE and PEEK ball valve seat seals specifically for sub-zero environments. Our materials resist thermal shock, maintain elasticity at -196°C, an...
Hydraulic systems demand precision sealing under extreme pressure, temperature shifts, and contamination. Standard rubber seals often fail through extrusion, swelling, or wear—leading to costly leaks and downtime. The SPGW seal is specially designed for heavy hydraulic equipment and includes a Teflon mixture outer ring, a rubber inner ring and two POM backup rings. The rubber elastic ring provides...
When aggressive chemicals, ultra-high temperatures, or ultra-high purity environments threaten standard elastomers, FFKM O-rings and seals deliver unparalleled performance. As a leading manufacturer of high-integrity sealing solutions, we specialize in perfluoroelastomer (FFKM) components engineered to withstand conditions where FKM and PTFE reach their limits. FFKM’s near-universal chemical compa...
In demanding environments where rapid gas decompression (RGD) occurs, standard O-rings can fail due to explosive pressure changes. As a leading seal manufacturer, we specialize in high-quality RGD-resistant O-rings designed to withstand extreme conditions in oil & gas, aerospace, and hydraulic systems. Our advanced elastomer compounds prevent blistering, cracking, and extrusion, ensuring long-...
Weco hammer union seals are critical components in oil and gas applications, ensuring leak-proof connections in high-pressure environments. These seals are designed to withstand extreme conditions, including corrosive fluids, temperature fluctuations, and heavy vibration. Their precision engineering minimizes downtime, making them a preferred choice for operators seeking efficiency and safety. A k...
For engineers battling space constraints in hydraulic and fluid power systems, the T-Seal Compact Seal delivers unparalleled stability and pressure resistance while fitting standard O-ring grooves. T-Seals are mostly used in stab and static applications,used for many oil and gas applications in wellhead equipment, downhole and surface applications. The T Seal has an elastomer T-shaped crossed sect...
EWT series Hammer Union Seals are static seals, which are used in hammer union-style pipe connections to establish flow lines and prevent leakage. JST provides a number of compounds compatible with mud, crude oil and chemicals with acid or H2S. JST offers two lines of hammer union seals, one from elastomer, another one from elastomer reinforced with anti extrusion ring which is normally used for h...
EVZ is commonly used in high-pressure mud pumps and fracturing pumps, namely Packings, the high-speed reciprocating dynamic seals. Its main function is to prevent plungers from leakage in high-speed reciprocating. Some special working conditions are taken into consideration when designing its structure and material, which make it apply to fracturing fluid, mud so on mediums. Technical Requirements...
In the intricate world of medical devices and equipment, where precision, sterility, and reliability are non-negotiable, seemingly small components play outsized roles. Among these unsung heroes are gaskets and seals. And when it comes to choosing the right material for these critical interfaces in medical applications, EPDM (Ethylene Propylene Diene Monomer) consistently emerges as a champion. Le...
The extreme conditions of downhole oil and gas operations demand sealing solutions that defy pressure, temperature, and aggressive media. HNBR S-Seals have emerged as a critical defense line for drilling tools, completion equipment, and production systems, offering a balance of resilience, cost-effectiveness, and performance where failure is not an option. Conquering Downhole Extremes with Materia...
New Blog
For inquiries about our products or pricelist, please leave to us and we will be in touch within 24 hours.
No. 1, Xinyu North Road, Ningxi Street, Zengcheng District, Guangzhou, China 511340
© Copyright: 2025 Guangzhou JST Seals Technology Co., Ltd. All Rights Reserved.
Scan to wechat
