Main Features: The valve is opened/closed by the valve disc moving in a direction parallel to the valve seat hole axis and can only be installed on horizontal pipelines with the major function of preventing medium backflow when shutting down the pump and maintaining the water column required by...
Nominal Diameter: DN25 - DN300
Nominal Pressure: PN1.6 - PN4.0
Working Temperature: -40°C - 425°C
Suitable Medium: Water, Gas, Steam, Oil, Nitric acid, Acetic acid, etc
Materials
Name | Body | Bonnet | Stem | Disc | Seat |
WCB | WCB | WCB | 13Cr | 2Cr13 | 2Cr13 |
STL | |||||
304 | CF8 | CF8 | 304 | 304 | 304 |
STL | |||||
316 | CF8M | CF8M | 316 | 316 | 316 |
STL | |||||
304L | CF3 | CF3 | 316 | 304L | 304L |
STL | |||||
316L | CF3M | CF3M | 316 | 316L | 316L |
STL |
Standards
Manufacture Standard | Face to Face | Flange Drilling | Pressure-Temperature Class | Test Standard |
API594, API6D, JB/T8937 | API594, API6D JB/T8937 | JB/T74-90, HG/T20592-20635, SH3406, ANSI B16.5, API604, ASME B 16.47, DIN2543-2548 | JB/T74, GB/T9124, ASME B16.34, DIN2401,SH3406 | API598, |
