Zhejiang DECA Control Valve Meter Co., Ltd., a High-tech Enterprise in Zhejiang Province, specializes in designing, developing, producing and selling control valves, including control valves, gate valves, ball valves, butterfly valves and other special valves. Our company is a first-tier supplier of SINOPEC, an approved material supplier of CNPC, an approved supplier of CNOOC, an approved material and equipment supplier of CNAF, an approved supplier of CHEMCHINA, and a network member of National Chemical Automation Design Center.
body main technical parmanetersbody typetwo-piece,three-pieceNominal diameterDN15~500(NPS1/2~24)Nominal pressurePN 1.6~4.0Mpa(Clsaa150~600)Type of connectionflangedMaterialA216-WCB, A351-CF8, A351-CF8M, A351-CF3,
A351-CF3M, A217-WC6, A217-WC9Bonnet: standard type-20~250ºChigh temperature type250~525ºCPackingPTFE, flexible graphite, nickel-based wire reinforced flexible graphite
Trim main technical parmaneters
Outline dimensions: See table 12 for details.Plug typeO straight-through typePlug materialA182-F304, A182-F316Seat material/soft seal:PTFE, RPTFE, PPLhard seal:A182-F304, A182-F316Flow characteristicquick openingRated Cv value:See table 4 for details.Rated travel0~90ºCSeat Leakage class/soft sealANSI B16.104 class VIHard sealANSI B16.104 class V(hard sealclass VI for special orders)treatment for bodyplug.ball.seat.stem etc