铜阀门 黄铜卧式止回阀 止水阀 单向逆止阀水表前 4分6分1寸 'Copper valve, brass horizontal check valve, water stop valve, one-way check valve, front of water meter, 4 minutes, 6 minutes, 1 inch'

Brand: button shield Purpose: check flow direction: one-way temperature environment: normal temperature shape: swing valve standard: national standard thread specification: DN15 4 min 77 g soft seal, DN15 4 min 95 g soft seal, DN20 6 min 99 g soft seal, DN20 6 min 145 g soft seal, DN25 1 in 146 g soft seal, DN25 1 in 200 g soft seal, hard seal DN32 275 g, hard seal DN32 370 g, hard seal DN40 400 g, hard seal DN40 545 g, hard seal DN50 580 g, Hard seal DN50 850g, hard seal DN65 1330g, hard seal DN80 2000g, hard seal DN100 3500g, hard seal DN15 113g, hard seal DN20 170g, hard seal DN25 250g Type (channel position): straight-through structure type: one-way drive mode: hydraulic control pressure environment: atmospheric pressure Applicable medium: water