Share the collected materials with colorful diagrams of control valve structures for everyone

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This post was last edited by YAMATAKE on 2012-7-1 at 17:50. I would like to thank a friend named HaiChuan for providing the file; I have collected it and am now sharing it with everyone. The file originally contained a world file, and people might not be aware of its contents. Now I’m providing that information here, in the hope it will be helpful to everyone. 1. Classification of control valves: Based on the movement pattern of the valve stem, they can be divided into straight-stroke types and angle-stroke types. In straight-stroke valves, the valve stem moves back and forth vertically； Typical products include single-seat valves, double-seat valves, sleeve valves, angle valves, diaphragm valves, and three-way valves. file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-10739.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-15978.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-6629.png Single-seat valve Double-seat valve Sleeve valve file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-31620.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-32357.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-12980.png Angle valve Three-way valve Diaphragm valve. For valves with angular motion, the valve element rotates, similar to opening and closing a door; typical products include butterfly valves, ball valves, eccentric rotary valves, and fully functional ultra-lightweight control valves ； file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-608.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-9023.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-20459.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-8001.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-26528.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-2067.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-9203.png II. Structure of control valves 1. Origin of single-seat valves: 1940s; Development stage: 1960s. Standard leakage rate: 10-4×KV. There is only one valve core and one valve seat inside the valve body, which makes it easy to ensure sealing and results in low leakage (10－4× KV), but complete shut-off is not possible ； Suitable for applications with strict leakage requirements and clean media under moderate pressure differences ； After further design, it can be used as a cut-off valve. Structurally, it is mainly divided into two types: the traditional type and the compact type. Compared to the traditional type, the compact version has 30% less weight and height, 30% higher flow rate, and improved anti-clogging performance, though there are no fundamental changes ； file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-23251.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-20518.png Old-style, compact type 2, two-seat valve ◆ Originated in the 1940s ◆ Became popular in the 1960s ◆ Standard leakage rate: 10-3×Kv Suitable for applications involving large flow rates, high pressure differences, and clean media where strict leakage requirements do not apply ； Structural feature: The valve body contains two valve spools and valve seats, which cannot make simultaneous contact; as a result, the leakage rate is several dozen to hundreds of times higher than that of a single-seat valve ； The leakage amount increases when the temperature changes ； file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-13835.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-14262.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-18901.png 3. Sleeve valve ◆ Origin: 1960s ◆ Peak usage: 1970s ◆ Standard leakage rate: 10-3×Kv for dual-seal versions, 10-4×Kv for single-seal versions. Structural features: The sleeve and valve plug serve as substitutes for the valve core and seat in single- and double-seat valves, thereby performing the function of throttling ； ◆Valve plug guidance is used ； Threadless valve seat connection structure ； ◆The flow path is more complex, making it easier to get clogged ； Larger in size, heavier, and more expensive ； file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-31367.png file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-28146.png You can also attach some valve structure diagrams that you usually collect; I won’t provide any annotations regarding those diagrams. You can view them at http://bbs.hcbbs.com/forum.php?mod=attachment&aid=ODQxMzAyfDE2NTFjMGRifDEzNDEwMjY4NDF8NzU5NTE1fDk1MjkyOQ%3D%3D&noupdate=yes http://bbs.hcbbs.com/forum.php?mod=attachment&aid=ODQxMzAwfGM0ZDVmZDIzfDEzNDEwMjY4NDF8NzU5NTE1fDk1MjkyOQ%3D%3D&noupdate=yes http://bbs.hcbbs.com/forum.php?mod=attachment&aid=ODQxMzAxfGI4YjM4NjkwfDEzNDEwMjY4NDF8NzU5NTE1fDk1MjkyOQ%3D%3D&noupdate=yes http://bbs.hcbbs.com/forum.php?mod=attachment&aid=ODQyNDIwfGU2ZGY2NWRhfDEzNDExMzYxNTV8NzU5NTE1fDk1NDMxMQ%3D%3D&noupdate=yes