Product Application; Specification - Yoshitake GD-400 Product Manual

1. Product application

The GD-400/400SS pressure reducing valve is developed primarily for extremely low
pressure control of air or nitrogen gas in a chemical, food or petrochemical plant.

2. Specification

CAUTION
Check the data on the nameplate of the delivered product against the
specifications of your order sheet.
I f you find any discrepancy, first contact us for confirmation.
※ ※ ※ ※
Model
Application
Nominal size
Inlet pressure
Reduced pressure
Operating temperature
Minimum pressure
difference
Maximum reduction ratio
Connection
Material
Airtightness test pressure （ ※ 2 ）
※ 1 Wetted parts of GD-400SS are made of stainless steel.
Please have a sensing pipe and joints at your end.
※ 2 Do not apply pressure higher than those used for pressure test or airtightness test,
whichever lower, to the installed piping. Higher pressure may damage internal parts.
A
B
C
D
Body
Valve seat
Valve
Disc
Spindle
Diaphragm
Outlet
1
GD-400
Air 、 nitrogen gas
15A,20A,25A
2.5 ～ 4 00 kPa
0.5 ～ 1 .4 kPa
1.2 ～ 3 .3 kPa
3.0 ～ 8 .0 kPa
7.0 ～ 2 0 kPa
5 ～ 6 0 ℃
2.0
400 ： 1
JIS 10K FF
Cast iron
Stainless steel
Stainless steel
Synthetic rubber
Stainless steel
Synthetic rubber
Inlet
A
B
C
D
GD-400SS （ ※ 1 ）
kPa
Flanged
Stainless Steel
400 kPa
1.8 kPa
4.2 kPa
10 kPa
25 kPa
■ E P D T - 1 7 9 c ■