BR 831 series three-piece ball valve has optimized flow characteristic and can provide larger valve flow capacity. It also has the advantages of online maintenance and replacement. It is widely used in electrical power, oil refining, chemical, petrochemical, paper and other industrial fields. Features
| Nominal Diameter：DN15 to DN300 (1/2” to 12”) |
| Pressure Rating：PN16 to PN250 (ANSI 150 to 1500 lbs) |
| Connections： Flanged: ANSI B 16.5(RF, RTJ) / DIN EN 1092-1 Welding：ANSI B 16.25 BW or SW Threaded connection |
| Body material： WCB (1.0619 / GP240GH / WCB) Stainless steel (1.4408 / CF8 / CF8M / CF3 / CF3M) |
| Trim material： Stainless steel Fire protection planning Three-piece structure |
| Working temperature: -29℃ to +560℃ |
| Flow characteristic KVS： Quick opening / cut off |
| Leakage class：Metal sealing IV/V, soft sealing VI |
| Actuator： PRS/PRD series pneumatic actuator； NN series manual drive； Electric actuator specified by the customers |