The API standard gate valve series products have the characteristics of low fluid resistance, small impact and erosion on the sealing surface, no change in the direction of the medium flow, no disturbance to the flow, and small pressure drop. They have a wide range of applicable pressure and temperature conditions. It is a common shut-off valve and is widely used in oil pipelines (such as petroleum, chemical, and thermal power plants) and water vapor pipelines to connect or cut off the medium in the pipeline (cannot be used as a throttle valve).
The common basic models of API standard gate valves include: Z40H, Z40Y, Z540H, Z540Y, Z940H, Z940Y, etc.
● Compact structure, elegant design, full-flow channel, and low flow resistance coefficient.
● The sealing surface is made of alloy steel or hard alloy, and the sealing materials are paired reasonably, and the service life is long.
● The gate plate structure type is: elastic wedge single gate plate or rigid wedge single gate plate. The valve stem surface is treated with nitriding, which has excellent corrosion resistance and friction resistance. The packing is made of flexible graphite, ensuring reliable sealing, flexible operation, and small opening and closing torque.
● Various pipe flange standards and flange sealing surface types can be selected. Moreover, various driving methods such as manual, worm gear transmission, electric, pneumatic, and hydraulic can also be chosen to meet the different needs of users.
● Pressure: Class 150LB, Class 300LB, Class 600LB, Class 900LB, Class 1500LB, Class 2500LB, etc.
● Diameter: 2", 2 1/2", 3", 4", 5", 6", 8", 10", 12", 14", 16", 18", 20", 24", 26", 28", 30", 32", 36", 40", 42", 48", etc.
● Design Specifications: API 600, API 603, API 6D
● Structural length: ASME B16.10
● Flange connection: ASME B16.5, ASME B16.47
● Testing and Inspection: API 598, API 6D, API 60
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