Made in Japan
Manufacturer: Yoshitake
Model: GDK-2000
- Remote air-loaded control
- Stable operation against inlet pressure fluctuation
Features |
For steam, remote control, direct acting |
Type |
Remote Air-loaded, direct acting type |
Specifications |
Product type |
Pilot-operated type |
Nominal size |
15A (1/2″) – 100A (4″) |
Application |
Steam |
End connection |
JIS Rc or NPT screwed,JIS 20K RF flanged,JIS 10K FF flanged, ASME Class 150 or 300 flanged, EN PN25 flanged |
Inlet pressure |
0.1 – 2 MPa (0.1-1.0MPa for JIS 10K) |
Reduced pressure |
0.05 – 1.4 MPa (0.05-0.9MPa for JIS 10K and ASME 150) |
Reduced pressure |
90% or less of the inlet pressure(gauge pressure) |
Min. differential pressure |
0.05 MPa |
Max. pressure reduction ratio |
10 : 1 |
Working temperature |
Max. 220 degree(C) |
Valve seat leakage |
0.01% or less of rated flow |
Material |
Body |
Ductile cast iron |
Main Valve |
Stainless steel |
Valve seat |
Stainless steel |
Diaphragm |
Stainless steel |
Size |
L (mm) |
H (mm) |
Weight (kg) |
Cv value |
15A(1/2) |
150 |
244 |
12.4 |
5 |
20A(3/4) |
150 |
244 |
12.4 |
7.2 |
25A(1) |
160 |
251 |
16.4 |
10.9 |
32A(1-1/4) |
180 |
282 |
19.9 |
14.3 |
40A(1-1/2) |
180 |
282 |
19.9 |
18.8 |
50A(2) |
230 |
319 |
30.5 |
32 |
Size |
L (mm) |
H (mm) |
Weight (kg) |
Cv value |
15A(1/2) |
146 |
244 |
13.9 |
5 |
20A(3/4) |
146 |
244 |
14.4 |
7.2 |
25A(1) |
156 |
251 |
19.2 |
10.9 |
32A(1 1/4) |
176 |
282 |
22.4 |
14.3 |
40A(1 1/2) |
196 |
282 |
22.9 |
18.8 |
50A(2) |
222 |
319 |
33.5 |
32 |
65A(2 1/2) |
282 |
373 |
61.8 |
54 |
80A(3) |
302 |
399 |
69.1 |
70 |
100A(4) |
342 |
488 |
108.6 |
108 |