- Brand J.W.
- Winco
- Valve body construction Brass
- Gasket construction Brass w/ silicone-rubber coating (vmq)
- Breather cap construction 304 stainless steel
- Thread length 8.5mm
- Spring construction 301 stainless steel
- Opening pressure in mbar 200 (+/- 20%)
- Series Gn881
- Thread G 1/2"
- Across flats 27mm
- Breather cap diameter 22mm
- Nut width 29mm
- Sealing ring diameter 26mm
- Manufacturers part number 881-g1/2-200-ms-m
- Sealing washer construction Din 7603 a, soft iron 1.0338
- Nut height 12mm
- Body height 31mm