Mar. 10, 2023
A gate valve is a manual linear-motion valve with a vertical rectangular or circular disc that slides over an opening to stop the flow and serves as the "gate." Gate valves are often used for isolation, fully open or closed, and are not suited for throttling service because the high-velocity flow causes a partially open disc to vibrate and chatter, hastening the erosion of the disc and seating surfaces.
API600 Cast Steel Gate Valve
For high-pressure and temperature applications, gate valves are adequate. The following are the primary benefits of using a gate valve:
ㆍThey have good cutoff properties.
ㆍLow-pressure drop; very low frictional loss
ㆍLittle maintenance required
ㆍCan function as a bi-directional valve
ㆍAvailable in different sizes
ㆍIt cannot be used to throttle service.
ㆍSlow disc movement during operation; it takes time to fully open or close the disc.
ㆍLapping and grinding repairs are difficult to do.
ㆍWhen partially open, it may produce noise and vibration.
ㆍSeat and disc wear are risks.
For gate valve construction, various materials are used. Cast carbon steel, cast iron, ductile iron, gunmetal, bronze, alloy steel, stainless steel, and forged steel are examples of common materials utilized. Plumbing services make use of brass and PVC gate valves. The material used in gate valves is mostly determined by the fluid service and the design temperature.
JIS Standard Gate Valve
Codes and standards in relation to gate valve design
The following codes and standards control gate valve design specifications:
ㆍAPI 600/ API 602/ BS5352/ API 603/ API6D/ IS780 /BS 1414 / BS 14846 - Valve Design
ㆍAPI 598 - Valve Pressure Testing
ㆍAPI B16.34 - Valve Pressure Temperature Rating
ㆍANSI B16.10 - Face-to-Face Dimensions
ㆍANSI B16.5 / ASME B 16.47/ BS 10 Table / DIN /IS /JIS Standards - Flange Drilling
ㆍANSI B16.25 and B16.11 - Butt/ Socket Welded End
ㆍANSI B 1.20.1 (BSP/NPT) - Screwed End
ㆍBody: Flanged, welded, or bolted connections link the valve body to the piping or equipment.
ㆍBonnet: The bonnet holds the moving parts that are fastened to the body.
ㆍTrim: Valve trim refers to the valve's internal parts that come into direct contact with the fluid and include the stem, gate, disc or wedge, and seat rings.
We are a gate valve supplier. If you are interested in our products, please contact us now!
+86 138 6861 8624
+86 181 0553 1755
Copyright © Wuhu CNM Valve Industry Co., Ltd. All Rights Reserved Sitemap | Powered by
Keywords: Trunnion Mounted Ball Valves Manufacturer API 600 Gate Valve Manufacturer Types of Plug Valves Class 300 LB Plug Valve Lubricated VS. Non-Lubricated Plug Valves: What You Need to Know What is the standard API for gate valves? Control Valves: Everything You Need to Know 5 Best Plug Valves Manufacturers and Suppliers Diaphragm Valve API 6D Ball Valve Manufacturers Flanged End Ball Valves - API 6D The Difference between API 608 and API 6D Valve Standard