Model Number: QHD-63 Brand Name: BEST Key Specifications/Special Features: Features:1.Imported technology, applicable for ball valve, butterflyvalve and more quarter turn valve2. Applicable medium: non-corrosive neutral gas3.Air source pressure: 3-8bar4.Ambient temp: normal type -20-80°C (code: C)High temperature -20-180°C (code: G)Low temperature -40-60°C (code: D)5.With visible valve position indicator6.Valve body material: ASTM6005 extruded aluminum alloy7.Seal material: normal butyronitrile rubber (NBR, code: N)Special high temperature fluoro rubber (Viton, code: V)
Special low temperature silicone rubber (code: G)
or hydrogenated nitrile rubber (HNBR, code: h)
8. Control mode: QAS double acting
AQD single acting
QAD, QAS with positioner (adjusting type)
9.Signal output: QAD, QAS with switch box (position limit switch, valve position signal output)