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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

FeaturesFor steam, remote control, direct acting
TypeRemote Air-loaded, direct acting type
SpecificationsProduct typePilot-operated type
Nominal size15A (1/2″) – 100A (4″)
ApplicationSteam
End connectionJIS Rc or NPT screwed,JIS 20K RF flanged,JIS 10K FF flanged, ASME Class 150 or 300 flanged, EN PN25 flanged
Inlet pressure0.1 – 2 MPa (0.1-1.0MPa for JIS 10K)
Reduced pressure0.05 – 1.4 MPa (0.05-0.9MPa for JIS 10K and ASME 150)
Reduced pressure90% or less of the inlet pressure(gauge pressure)
Min. differential pressure0.05 MPa
Max. pressure reduction ratio10 : 1
Working temperatureMax. 220 degree(C)
Valve seat leakage0.01% or less of rated flow
MaterialBodyDuctile cast iron
Main ValveStainless steel
Valve seatStainless steel
DiaphragmStainless steel

JIS Rc screwed

SizeL (mm)H (mm)Weight (kg)Cv value
15A(1/2)15024412.45
20A(3/4)15024412.47.2
25A(1)16025116.410.9
32A(1-1/4)18028219.914.3
40A(1-1/2)18028219.918.8
50A(2)23031930.532

JIS 20KRF flanged

SizeL (mm)H (mm)Weight (kg)Cv value
15A(1/2)14624413.95
20A(3/4)14624414.47.2
25A(1)15625119.210.9
32A(1 1/4)17628222.414.3
40A(1 1/2)19628222.918.8
50A(2)22231933.532
65A(2 1/2)28237361.854
80A(3)30239969.170
100A(4)342488108.6108

About flow rate

Specifications Selection Chart
Nominal Size Selection Chart

Dimensional drawing

GDK-2000

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