J-VALVES manufactures 6" 600LB A105N DBB high pressure double block and bleed ball valves, API 6D forged steel ball valves for oil, gas and chemical industry, RF/RTJ flange available, custom solutions & global successful industrial project cases, reliable quality & full after-sales support.

In modern industrial pipeline systems, safety, reliability, and leakage prevention are critical engineering requirements. Whether in oil and gas transmission, LNG processing, petrochemical plants, or offshore platforms, even minimal leakage can lead to operational risks, environmental hazards, and costly downtime.The Double Block and Bleed (DBB) ball valve is designed to provide a highly reliable isolation solution that ensures zero-leakage sealing performance and safe maintenance conditions. Through advanced sealing structure and precision engineering, DBB ball valves have become a key component in high-integrity pipeline systems.

J-VALVES A105 forged steel electric flanged trunnion ball valve, 8 inch 150LB API 6D certified with backup handwheel. For natural gas, petrochemical & refinery pipelines. Self-produced valve body & integrated electric actuator, verified by successful global energy projects, cost-effective alternative to imported valves.

J-VALVES is a professional Chinese manufacturer of 2PC trunnion mounted ball valves. We provide high-quality 16 inch 300LB WCB two-piece ball valves with full international certificates, fast delivery, cost-effective price and verified overseas engineering cases for oil, gas and chemical pipeline projects.

In modern oil, gas, petrochemical, and LNG pipeline systems, safety performance is a critical engineering priority. Valves are not only flow control components but also key isolation barriers that directly affect system integrity and operational safety.Among various valve types, the trunnion mounted ball valve has become a preferred solution for high-pressure and large-diameter pipelines due to its superior sealing stability, torque efficiency, and reliable shutoff capability. With advanced engineering and manufacturing control, J-VALVES trunnion mounted ball valves are widely used to enhance pipeline safety performance in demanding industrial environments.

Double Block and Bleed (DBB) ball valves are widely used in oil, gas, petrochemical, LNG, and pipeline systems where safe isolation and zero-leakage performance are critical. Among the most important engineering requirements for these valves is compliance with API 6D, the international specification governing pipeline valves.

In modern fluid control systems, especially in marine engineering, offshore platforms, and seawater handling environments, material performance is the decisive factor for valve reliability. The C95800 floating ball valve is widely used due to its excellent corrosion resistance, mechanical strength, and long service life in aggressive media.

J-VALVES CU5MCUC floating ball valve 1/2"-3" Class 300LB stainless steel flanged manual ball valve, anti-corrosion for chemical & oil gas, OEM custom service, industrial valve solutions with rich project cases

J-VALVES fully welded forged steel ball valve, DN1200 large bore PN100 low temperature LF2M material, integral welded ball valve for natural gas transmission pipeline, zero leakage, high pressure & cryogenic resistance. Own forging workshop with API 6D certification, hundreds of gas pipeline successful projects worldwide, custom actuator, size & pressure available.

In modern pipeline engineering systems, safety, isolation, and maintenance efficiency are critical requirements—especially in oil & gas, petrochemical, and high-pressure process industries. The Double Block and Bleed (DBB) ball valve is designed to provide a highly reliable isolation solution by combining two sealing barriers and a bleed/vent system within a single valve assembly.