Heat Preserving Ball Valve 1.Anti-Static Device 2.Blow-out Proof Stem 3.Fire Safe Design 4.Emergency Sealant Injector Heat Preserving Ball ValveThree Way Ball Valves have especially been designed to permit a 90° connection between two pipes of same bore. The special construction of the valves is such as to allow a smooth flow of fluids with minimum pressure drop and permit the pig to pass through ...