Gate valve with by-pass,Gearbox and handwheel operation,DN700-DN1200,PN10,PN16
Design Standard:BS5163 or DIN3352 F5
Face to face dimensions: BS5163,DIN3202 F5
Flange:BS4504 Or DIN2501(BS EN1092)PN10,PN16
Each valve be tested according to test standard: BS5163,DIN3230
Work Temperature: 0-80°C
Working Pressure:PN10,PN16
Size:DN500-DN1200
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Materials:
Body: Ductile Iron(GGGG50)
Bonnet: Ductile Iron(GGGG50)
Wedge:Ductile iron coated by NBR or EPDM
Stem:2Cr13
Stem nut:Ductile iron(GGGG50)
Gland:Ductile iron(GGGG50)
O ring:NBR
Gasket:NBR
Bonnet Bolts:Steel 8.8+Wax
Gearbox:Ductile iron(GGG50)
Gate valve with by-pass valve,Components and Materials
Gate valve with by-pass valve,Dimensions
Zhixin Valve manufactures ductile iron resilient seated non rising stem gate valve with bypass.
Normally,F4 gate valve,because the face to face length is too short to make by-pass.
It needs long body gate valve,for example,BS 5163 or DIN3252 F5 gate valve and for big size gate valve.
there is enough space to make bypass.
what valves can used for by pass?
Normally,the by pass valve is a small size gate valve,bypass valve size is DN40,DN50,DN60,DN80,DN100
what is the purpose of bypass valve?
The primary purpose of a bypass valve is to provide operational flexibility, maintenance convenience, and system safety
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Bypass gate valves are required for the following reasons:
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Continuous flow: Bypass gate valves have an extra passage that allows fluid to flow even when the main valve is closed.
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Pressure release: Before opening a high-pressure pipeline, the pressure can be released through the bypass valve-to avoid sudden influx and impact on the pipeline.
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Reducing torque: In cases of large pressure differences, the bypass helps reduce the opening torque of the valve.