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.