... valve 1.19years experience 2.low leakagerate,high quality 3.OEM is welcome 4.CE High quality Anti-sweat worm gear butterfly valve Model ... valve:PN10/16 Applicable medium: water ,sea water, sewage , oil, air, weak acid and soda etc. Applicable temperature of electro valve ... test 1.11.76 Air Seal Test 0.60.6suitable medium Air, water, sewage, steam, gas, oil, etc. Drive type Manual, worm worm ...