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YOSHITAKE GD-4 Pressure Reducing Valve – Air

Made in Japan
Manufacturer: Yoshitake
Model: GD-4

  • High accuracy
  • Stable low pressure control

Specifications

FeaturesFor air, slight pressure
TypeDirect-acting type
SpecificationsProduct typeDirect-acting type
Nominal size15A (1/2″) – 150A (6″)
ApplicationAir, other non-dangerous fluids
End connectionJIS 10K FF flanged
Inlet pressureMax. 300 kPa
Reduced pressure2 – 200 kPa (*1)
Reduced pressure70% or less of the inlet pressure(gauge pressure)
Min. differential pressure3 kPa (Dia. 256mm)
Working temperature5 – 80 degree(C)
MaterialBodyCast iron
Main valveNBR (15-50A) , Stainless steel (65-150A)
Main valve seatStainless steel
DiaphragmNBR

Remarks

*1 Contact us pressure range for each valve.
*2 Min. differential pressure
Diaphragm
Dia. 256mm: 3kPa
Dia. 340mm: 2kPa
Dia. 400mm: 1kPa
*3 Max. pressure reduction ratio
15-50A: 7:1
65-150A: 10:1

Diaphragm Dia. 256mm type

SizeL(mm)H(mm)Weight(kg)Cv value
20A(3/4)170565272
25A(1)170565283
32A(1 1/4)180585284
40A(1 1/2)180585295
50A(2)180595318
65A(2 1/2)2157003921
80A(3)2607154827
100A(4)3007856442
125A(5)3608408872
150A(6)38289512394

About flow rate

Specifications Selection Chart
Nominal Size Selection Chart

Dimensional drawing

Dimensional drawing

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