Brief description of Ball Valve: 1) Size: 1/4~4" 2) Working pressure: 1.6-6.4mPa 3) Temperature range: -29�°C ~ 150�°C ~ 260�°C 4) Suitable medium: water, oil, air, some corrosive liquid 5) Thread type: G, NPT, BSPT, RC,BSP, DIN259/2999 6) We can also manufacture similar products according to your special requirements.