Specifications - Yoshitake GD-28S-NE Product Manual

1.1 Specifications

Model
Nominal size
Application
Inlet pressure
Reduced pressure
Min. differential pressure
Controllable range
Max. temperature
Body
Valve seat
Valve disc
Diaphragm
Connection
The products from 20A to 50A are equipped with built-in strainer (40 mesh).
Pressure gauge connection port is JIS R1/4.
Products complying with the Water Supply Act
*1: It can be used under the condition that the maximum pressure reduction ratio is 7: 1 within
the controllable range shown in the chart below.
*2: The flange is thicker than the standard value.
If it is out of controllable range, employ two-stage pressure reduction or select another model.
When inlet pressure is 2.0MPa, make sure that reduced pressure is 0.3MPa or more.
Caution
1. Specifications
A
B
Specifications Selection Chart *1
1
Please collate the plate or label attached to the product with specifications of ordered
model.
* If they do not match each other, please contact us without using the product.
GD-28S-NE
20A - 50A
Cold and hot water
2.0 MPa or less
0.20 - 0.35 MPa
0.30 - 0.70 MPa
Refer to Specifications Selection Chart *1
Stainless Steel
Stainless Steel
Synthetic rubber
Synthetic rubber
JIS Rc screwed
Controllable range
range
The valve does not fulfill specified
performance in this range.
Reduced pressure MPa
1
GD-29S-NE
20A - 100A
0.05 MPa
90°C
JIS 20K RF flanged *2
EPDT-351