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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

Features For air, slight pressure
Type Direct-acting type
Specifications Product type Direct-acting type
Nominal size 15A (1/2″) – 150A (6″)
Application Air, other non-dangerous fluids
End connection JIS 10K FF flanged
Inlet pressure Max. 300 kPa
Reduced pressure 2 – 200 kPa (*1)
Reduced pressure 70% or less of the inlet pressure(gauge pressure)
Min. differential pressure 3 kPa (Dia. 256mm)
Working temperature 5 – 80 degree(C)
Material Body Cast iron
Main valve NBR (15-50A) , Stainless steel (65-150A)
Main valve seat Stainless steel
Diaphragm NBR

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

Size L(mm) H(mm) Weight(kg) Cv value
20A(3/4) 170 565 27 2
25A(1) 170 565 28 3
32A(1 1/4) 180 585 28 4
40A(1 1/2) 180 585 29 5
50A(2) 180 595 31 8
65A(2 1/2) 215 700 39 21
80A(3) 260 715 48 27
100A(4) 300 785 64 42
125A(5) 360 840 88 72
150A(6) 382 895 123 94

About flow rate

Specifications Selection Chart
Nominal Size Selection Chart

Dimensional drawing

Dimensional drawing

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