VAI61.50-40 两通球阀 Siemens西门子

Angular rotation：90 °
Leakage rate：„Waterproof“ as per EN 60534-4 L/1, better than class 4
Leakage rate bypass：< 1 % of kvs value
DN：20
kvs：6.3 m³/h
Medium：Water , Water with anti-freeze
Medium temperature：-10...120 °C
Valve characteristic：Throughport: equal-percentage , Bypass: linear
Rangeability：> 500
Permissible operating pressure：1600 kPa
Material, valve body：Brass UNS C35330 (DZR)
Material, inside set：Brass UNS C35330 (DZR), chromium-plated
PN class：PN 40
Connecting thread：Rp ¾ "
GQD..9A Δpmax：350 kPa
GDB..9E Δpmax：350 kPa
GMA../GLB..9E Δpmax：350 kPa