HD7X41X型PN6~PN16蓄能器式液控缓闭止回蝶阀主要用在热电厂并联机组和煤气余热发电机组上，用以作为保护系统安全得紧急切断阀门。主要外形和连接尺寸DNPNLL1L2L3L4法兰连接尺寸4000.62165561449320440GB/T17241GB/T91131.021655614493304401.621655614493454404500.622255614493704401.022255614493804401.622258014493954905000.622958014494004401.022958014494104901.622958014494254906000.626758014494404901.026758014494604901.626762518204704907000.629262514494364901.029262518205505451.629262518205705458000.631862518206254901.031862518206405451.631862518206605459000.633062518207005451.033062518207105451.6330675182072561010000.641062518207606101.041067518207706101.6410675218079061012000.647067518208756101.047067521808906101.6470729218091572014000.6530729218010007201.0530729218010207201.65307812180104596016000.6600781218011207201.060078121801140960浙江沪科阀门有限公司手机：吕工13738370398(同微信)邮箱：13738370398@***:253381360网址)