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YOSHITAKE GDK-2000 Pressure Reducing Valve – Steam

Made in Japan
Manufacturer: Yoshitake
Model: GDK-2000

  • Remote air-loaded control
  • Stable operation against inlet pressure fluctuation

Specifications

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

JIS Rc screwed

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

JIS 20KRF flanged

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

About flow rate

Specifications Selection Chart
Nominal Size Selection Chart

Dimensional drawing

GDK-2000

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