DIN F4 Outside Screw and Yoke Gate Valve is mainly used in fire-fighting system, with red color.People can Recognize Gate Valve is open or closed condition through the Rising Stem in a far distance.
1- Body/Bonnet:GGG40/50
2- Stem:SS420/431
3- Bolts/Nuts:SS304
4- Wedge:GGG40/50 + EPDM Coating
5- Epoxy Resin coating internal & external, thickness above 300 micron
6- Flange or Socket Or Groove Ended
7- Work pressure:PN10/16;Size range:1", 1 1/2", 2" to 24"
8- Design Standard:DIN F4/F5, BS5163, AS2638.2
9- Operate:Handwheel
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