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action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home2/shenli7f/floworkvalve.com/wp-includes/functions.php on line 6114Gate valve, as a common cut-off valve, is widely used in many industries such as petroleum, chemical industry, water conservancy, and electric power. The differences in performance, materials and structures make different gate valves suitable for various specific environments and working conditions.<\/p>\n
1. Pressure and temperature: Different gate valve designs and materials determine their performance under specific pressures and temperatures. For example, in high-temperature and high-pressure environments, gate valves with excellent high-temperature and high-pressure resistance should be selected, such as metal-sealed gate valves, ball valve factory<\/a>. <\/p>\n 1. Cast iron: suitable for low pressure, low temperature, non-corrosive media. <\/p>\n <\/p>\n The sealing performance of the gate valve is directly related to its working efficiency and service life. Gate valves with good sealing performance, small friction coefficient and long service life should be selected. For example, gate valves with flexible graphite seals have higher sealing performance and longer service life.<\/p>\n 1. Manual: suitable for small, low-frequency operations. When selecting a gate valve, its safety and reliability are indispensable considerations. Give priority to gate valve products that have been certified by authoritative organizations and have complete safety protection measures. For example, explosion-proof electric actuators, overload protection functions, etc.<\/p>\n
\n2. Fluid medium: The chemical properties of the fluid have strict requirements on the material of the gate valve. For corrosive media, stainless steel or specially coated gate valves should be selected.
\n3. Flow control: Where precise flow control is required, a gate valve with regulating function should be selected.<\/p>\n<\/h4>\n
Material selection<\/h4>\n
\n2. Carbon steel: suitable for high pressure, high temperature, and non-corrosive media.
\n3. Stainless steel: It has strong corrosion resistance and is suitable for a variety of corrosive media, wholesale gate valve<\/a>.
\n4. Special alloy: for special working conditions, such as ultra-high temperature, ultra-low temperature, strong corrosion, etc.
\nstructure type
\n5. Rising stem gate valve: The gate is raised and lowered by rotating the screw. It has a simple structure and is easy to maintain, but it is not suitable for underground pipelines.
\n6. Concealed stem gate valve: The lifting and lowering of the gate is driven by the internal screw. It has a neat appearance and is suitable for a variety of occasions.<\/p>\nSealing performance<\/h4>\n
\n2. Electric: It can realize remote control and automatic operation, and is suitable for large-scale and high-frequency operations.
\n3. Pneumatic: Suitable for occasions requiring quick response, such as emergency shut-off systems, carbon steel gate valves<\/a>.<\/p>\nSafety and reliability<\/h4>\n