... ,JIS 3) Zero leakage Super Quality Butterfly Valve With Malleable Iron HandleProduction Range:SIZE: 50 mm (2 inch) ... gas production platform.Chemical and petro-chemical plantsWater treatment- purificationSteel and metal plantsMilitary applicationFoundryPulp and paper plantsFood plantsTextile industrySugar ... -20~200°C(depending on pressure,medium and material)Suitable mediumFresh water,sewage,sea water, ...