１．Features; ２．Specifications ＆ Performance - Yoshitake GD-200 Series Manual

GD-200 Series pressure reducing valves are widely used for construction
equipment, air conditioning, plant equipment, industrial plant facilities and
other application.
This product can provide stable outlet pressure and big capacity.
１．Features
１) As pressure balanced structure is introduced, outlet pressure can be kept
at a constant level without influence of inlet pressure.
２) Valve seat is made of stainless steel to ensure superior preventing abrasion
and durability.
３) Rubber disc is used at the valve body to effectively eliminate leaks.
４) Maintenance is easy.
２．Specifications ＆ Performance
２．１ Specifications Table 1
Model
Application(Fluid)
Nominal Size
Inlet Pressure(MPa)
Reduced
Pressure(MPa)
Min. Differential
Pressure(MPa)
Max. Pressure
Reduction Ratio
Min. adjustable
flow Capacity
Application
Temperature(℃)
Coefficient of
viscosity(cSt)
Body
Valve Seat
Valve Disc
Diaphragm
Connection
Surface treatment
GD-200
water、air、oil (kerosene、heavy oil A･B)
1.0 or less
15A〜80A ：
(A)0.05〜0.25 (B)0.26〜0.7
100A〜150A：
(A)0.05〜0.25 (B)0.26〜0.5
5〜80
JIS 10K FF Flanged
15〜100A:
Electrodeposition
Paint
125〜150A:
Tar paint(Black) or
Electrodeposition
Paint
-1-
GD-200C
15A〜150A
0.05
１０：１
Water : 5L/min
3
Air : 10m /h(normal state)
5〜60
600 or less
Ductile Cast Iron
Stainless Steel
NBR
NBR
Nylon11 Coating
（Both sides）
GD-200H
2.0 or less
15A〜50A ：
(A)0.05〜0.25 (B)0.26〜0.7 (C)0.5〜1.0
65A、80A ：
(A)0.05〜0.25 (B)0.26〜0.7 (C)0.5〜0.9
100A〜150A：
(A)0.05〜0.25 (B)0.26〜 0.5 (C)0.5〜0.75
5〜80
JIS 20K RF Flanged
15〜100A:
Electrodeposition Paint
125〜150A:
Tar paint(Black) or
Electrodeposition Paint
■EPDT-096b■