WC6 chromium molybdenum steel Class600 flange gate valve

WC6 chromium molybdenum steel Class600 gate valve

This model is designed for pipeline isolation conditions that require evaluation of chromium molybdenum steel materials, such as steam and hot oil. The gate plate rises and falls along the direction of the valve stem, crossing the direction of movement with the main medium flow direction. It is usually used for full opening or full closing, and is not a ball valve that relies on rotating the valve disc to complete quarter turn opening and closing. It is also not suitable for use as a long-term throttling regulating valve.

Series parameters and manufacturing configuration

The following parameters are series selection references supported by publicly available information on similar products, used to propose customized solutions, and do not represent that all dimensions, pressures, and material combinations are in stock or have been validated for this project; Actual supply shall be calculated based on working conditions, and the drawings and technical documents of the order shall be confirmed and implemented.

High temperature materials and sealing pairs

WC6 is a chromium molybdenum alloy cast steel, which is not equivalent to WCB ordinary carbon steel or A105 forged steel. The valve cover, gate plate, valve stem, welding sealing surface, bolts, gaskets, and packing should be configured separately according to the actual temperature and medium. Cannot directly copy the highest temperature, lifespan, or testing conclusions of other manufacturers; Class600 is also not 600psi, and the allowable pressure needs to be checked in conjunction with the material and temperature.

Size standards and procurement documents

Specify the applicable design, flange, face-to-face and test standards with their editions. RF and RTJ connections require matching faces, dimensions and gaskets. For a quotation, provide the medium, design and operating conditions, nominal size, installation length, actuator clearance, leakage requirements and inspection documents. Required conformity documents should be listed separately from the design standards.

Installation and maintenance

Adequate space for opening and maintenance should be left above the rising stem, and support should be provided for the pipeline. The operation should be carried out according to the confirmed temperature and pressure rise procedures. Do not use the handwheel as an additional force tool after the valve is fully opened. Inspect and repair the erosion of the gate valve seat, valve stem threads, packing, and valve cover sealing. First, isolate, cool down, release pressure, and confirm the safety of the valve chamber.