OUWEI focuses on the core demand for high-pressure and large-bore fluid control, leveraging precise R&D capabilities to develop the forged steel gate valve series. With rigorous craftsmanship and professional design, it has become a core adaptive solution for harsh scenarios such as oil and gas long-distance pipelines, chemical high-pressure equipment, and nuclear power systems.
Adopting high-quality forged materials including A105 forged steel and F316L stainless steel, the valve body undergoes integral forging and heat treatment processes, boasting a tensile strength of ≥650MPa and excellent impact toughness. It can withstand a maximum pressure rating of PN420 and an operating temperature range of -46℃ to 425℃, compatible with large-bore specifications from DN300 to DN1200, easily handling critical working conditions such as high-pressure natural gas transmission and inlet/outlet of hydrocracking reactors.
Featuring an innovative double-disc bidirectional sealing structure, the valve seat adopts Stellite overlay welding technology, with the sealing surface hardness reaching HRC 65 or above. Combined with precise valve stem guiding design, it achieves ANSI Class VI zero-leakage sealing, complying with API 600 standards and ISO 10434 fire-safe specifications, effectively resisting corrosion and erosion from hydrogen sulfide, acid-base media, etc. Equipped with multiple types of actuators (manual, electric, pneumatic), it supports remote monitoring and intelligent regulation, with stable operating torque and 100,000 trouble-free opening/closing cycles without jamming, meeting the reliability requirements of continuous operation conditions.
Backed by a core R&D team and mature technical system, OUWEI provides integrated solutions such as material customization, structural optimization, and bore adaptation for personalized needs in high-pressure and large-bore scenarios. From design, production to testing, it adheres to strict standards throughout the process, ensuring each valve possesses extreme pressure resistance, sealing performance, and durability. Choosing OUWEI Forged Steel Gate Valve makes high-pressure and large-bore fluid control safer, more stable, and efficient.
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