Floating type ball valve (General flange type) SERIES

Floating type ball valve (General flange type)

KITZ ball valves are engineered for fire-safety and successfully fire tested to minimize both external and internal fluid leakage after plant fires. They have post-fire metal-to-metal contact of all sealing areas such as:Contact between ball and valve shell    (Fig. 3 and 4)Contact between stem and valve shell   (Fig. 5 and 6)Valve shell coupling flanges of split body design   (Fig. 7 and 8)Contact between valve body and insert of uni-body design   (Fig. 9) The problem of external fluid leakage is more serious than internal leakage through the valve bore because of the fear of fueling the fire. To prevent this, KITZ ball valves may be ordered with flexible graphite packing and gaskets, which are extremely heat resistant, and not affected by the fire.6. The surface of stem and stuffing box, and interface clearance of stem-to-gland, stem-to-body and gland-to-stuffing box are precisely controlled on machining and assembly for low emission service.A Be Floating Ball valve covers wide range of application such as Power, Natural Gas pipe line, Petro-chemical, Chemical plant, factory and building  construction. 1. Double “D” stem head design provides mounting of the lever handle always in parallel to the flow passage. This feature prevents the lever handle from being installed in a wrong orientation. (Fig. 1)2. The lower end of the stem is designed with an integral collar to be blowout-proof. (Fig. 2) 3. An antistatic feature is provided to ensure electrical continuity between ball,