Api602 Forged Globe Valve: A model of fluid control under harsh working conditions

As the core equipment of the oil, gas and petrochemical industries, Api602 Forged Globe Valve has become a safe guardian of high-pressure and high-temperature fluid systems with its performance designed for extreme working conditions. The valve is manufactured in strict accordance with API 602 standards. The forging process is used to form carbon steel or alloy steel materials in one piece. The internal defects of the material are eliminated through high-temperature forging, so that its yield strength is increased by more than 40% compared with cast steel valves, ensuring stable operation under ultra-high pressure of 60MPa and high temperature of 650℃.

The precise matching of its spherical valve body and conical valve core is an innovative breakthrough in flow control. The surface of the valve core is treated with supersonic flame spraying (HVOF) technology to form a 0.1mm thick tungsten carbide coating with a hardness of more than HRC70, which effectively resists medium erosion and corrosion. The valve seat adopts a metal-metal sealing structure, with a spring preload design, which always maintains a 0.01mm sealing gap in the stroke from full open to full closed, achieving zero leakage control.

At the application level, this valve has become the standard for key systems such as deep-sea oil and gas extraction, refinery catalytic cracking units and LNG receiving stations. Its double stem sealing system (packing seal bellows seal) has passed the API 607 ​​fire test and can maintain sealing performance for more than 60 minutes under fire conditions; the valve body flow channel adopts an equal percentage characteristic curve design, and the flow regulation accuracy reaches ±2%, meeting the stringent requirements of chemical reactor feeding, boiler feed water regulation and other scenarios.

With its high reliability, low maintenance cost and excellent life cycle cost, API 602 forged stop valve continues to provide technical support for the energy industry and has become an indispensable precision control unit in the pipeline system.