• August 08, 2025

The ultra-high pressure valve stem and seat seal series products, designed and manufactured by JST Seals, have been successfully integrated into China's first 7-1/16" ultra-high pressure valve set developed by a renowned domestic petroleum equipment manufacturer. Rated at 25,000 PSI (175 MPa) with temperature class LX (-46°C to 180°C), the system has passed DNV-witnessed API 6A PR2F performance testing for valves after two months of rigorous gas-seal validation. This milestone marks the joint achievement of third-party DNV certification by JST Seals and its strategic client. Applications of API 6A Valves API 6A valves are primarily used in well control equipment for oil and gas drilling and completion operations. They perform critical functions including connecting, controlling, and regulating hydrocarbon flow paths, ensuring safety during routine production management such as well interventions, production testing, fracturing, and paraffin removal. Significance of 25,000 PSI Valve Certification Amid global innovations in shale fracturing technology and rapid advancements in electric-driven fracturing systems, the industry demands higher-pressure and larger-bore equipment for wellhead master valves and fracturing valves. This DNV-certified 25,000 PSI (175 MPa) large-bore valve meeting API PR2F requirements represents a major technological breakthrough for Chinese wellhead valves in extreme conditions involving ultra-high pressure, high flow rates, and heavy proppant loads. It also demonstrates the successful application of JST Seals's sealing solutions in ultra-high-pressure domains. As a leading Chinese specialist in multi-domain sealing technology, JST Seals remains committed to continuously upgrading products through market-driven R&D and implementing efficient manufacturing. We will continue delivering premium sealing solutions and expert technical services to our global partners.

• July 02, 2025

JST Seals helped China's first domestic subsea Christmas tree to successfully complete the subsea installation! JST Seals' engineering and manufacturing team assisted in the design and production of sealing components for multiple key units such as the subsea Christmas tree connector, hanger, valve, installation tools, etc., and cooperated to pass multiple third-party certifications. As China's first professional sealing technology company with multiple subsea Christmas tree R&D and testing capabilities, JST will continue to provide high-quality sealing products and professional technical services to users of marine subsea equipment.

• April 30, 2025

The Offshore Technology Conference (OTC) serves as a central hub convening energy professionals from around the world to share ideas and innovations, discuss, debate, and build consensus around the most pressing topics facing the offshore energy sector. Whether it's oil and gas, solar, wind, hydrogen, or other marine resources, these conversations will be centered around the innovations that could help shift and drive the world’s energy mix. Discover innovative sealing solutions for the EOG industry at JST Seals! Join us at Booth 721 during the Offshore Technology Conference (OTC) in Houston, Texas, May 5-8, 2025. Let's discuss how our precision-engineered seals can enhance your operations. JST's products and services cover oil & gas drilling, semiconductor, new energy, construction machinery, aerospace, nuclear & wind power, medical equipment and other industries, meet the complex and harsh working conditions and technical requirements of various industries with its strength.

• March 17, 2025

CIPPE (China International Petroleum & Petrochemical Technology and Equipment Exhibition) is annual world’s leading event for oil & gas industry, annually held in Beijing. It is a great platform for connection of business, showcasing of advanced technology, collision and integration of new ideas; with the power to convene industry leaders, NOCs, IOCs, EPCs, service companies, equipment and technology manufacturers and suppliers under one roof across three days. We will participate in The CIPPE Exhibition to be held at New China International Exhibition Center, Beijing from March 26 to 28, 2025. Booth: W2555. JST has 29 years experience in the Oil & Gas seals designing and application. JST Seals is a leading manufacturer of high-performance seals for countless industries including oil and gas, semiconductor, LNG, chemistry, coal mining, medical equipment and others. We aim high and look far, providing professional and reliable sealing solutions for particular harsh applications. Look forward to greeting you at cippe2025!