Direct Acting Pressure Reducing Valve - GD-200 Series | Armstrong | Americas

Direct Acting Pressure Reducing Valve – GD-200 Series

Direct Acting Pressure Reducing Valve – GD-200 Series

Product Specifications

Model GD-200 GD-200H
Fluid Air, Water, Non-Corrosive
and Non-Viscous Liquids
Air, Water, Non-Corrosive
and Non-Viscous Liquids
Connection Type Flanged ANSI 150#
JIS 10K FF
Flanged ANSI 300#
JIS 20K RF
Maximum Allowable Pressure 150 psig
(10 bar)
300 psig
(20 bar)
Maximum Allowable Temperature 175°F (79°C)
210°F (99°C)-Viton
175°F (79°C)
210°F (99°C)-Viton
Body Material Ductile Iron
ASTM A536
Ductile Iron
ASTM A536
Maximum Operating Pressure 150 psig
(10 bar)
300 psig
(20 bar)
Connection Size 2″ (50 mm)
2-1/2″ (65 mm)
3″ (80 mm)
4″ (100 mm)
6″ (150 mm)
2″ (50 mm)
2-1/2″ (65 mm)
3″ (80 mm)
4″ (100 mm)
6″ (150 mm)

Direct Acting Pressure Reducing Valve – GD-200 Series

GD-200 and GD-200H valves offer high capacity and highly accurate control, with a large, cupped diaphragm for a long stroke. Compact and rugged, the GD-200’s composition valve and bronze metal seat mean high performance over a longer service life. Well suited to non-viscous liquid pressure reduction, the valve is widely applied in domestic water applications, construction equipment, irrigation, tank-car loading, and industrial or commercial air conditioning. Upstream variations do not affect the balanced pressure valve, and the composition disc ensures tight shutoff. The turndown ratio is 10:1, and sizes range from 2″ through 6″ (15–50 mm).