Ball valves with different functions

Trunnion ball valve are commonly found in flowing systems on ships, fire safe protection services and chlorine manufacturers. FD-LOK ball valves manufacturers have ball valves available with several different features to fit an application. Position indicators- Piston indicators are placed on the top of the ball to indicate the direction of flow. This is especially useful in multi-port ball valves. Standard face-to-face dimensions- These dimensions comply with ASMS standards and make the ball easy to retrofit and replace in-line with most other valves.   Anti-static- Anti-static design features can prevent static electricity from building up due to the valve rubbing against the elastomer seat. Static can pose a fire hazard, especially if the system has flammable liquids. Fire safe- Fire safe ball valves feature a back-up metal seat. This is important if the temperature of the system gets high enough to melt or soften the plastic seal. The metal seat acts as a seal when the ball rests across the seal.