Yoshitake GD-8N is a direct-type pressure reducing valve designed for pure water, cold and hot water, and various gases including air, nitrogen, carbon dioxide, and argon. With all wetted parts constructed from stainless steel (SUS316) and a degreased, grease-free design, it ensures excellent corrosion resistance and durability.

Features

• Excellent corrosion-resistant and durability, since all wetted parts are stainless steel (SUS316).
• The parts are degreased and free of grease.
• The valve can be fitted with a pressure gauge to measure the outlet pressure.

Specifications

Model	GD-8N
Application	Pure water, Cold and hot water, Air, Nitrogen gas, Carbon dioxide gas, Argon gas
Inlet pressure	0.1-1.0 MPa
Reduced pressure	0.05-0.7 MPa *1
Adjusted reduced pressure	85% or less of inlet pressure (gauge pressure)
Application temperature	5-60℃
Structure	Non-relief type
Connection	JIS Rc screwed

Materials:

• Body: Stainless steel (SUS316)
• Valve: Stainless steel
• Diaphragm: Fluororesin
• Pressure-resistant diaphragm: FKM

Notes

*1 Available with reduced pressure of 0.02 to 0.2 MPa (for low pressure).

• Pressure gauge connection port is JIS Rc 1/4 screwed. (Select from MAX 1.0 MPa, 0.4 MPa, 0.2 MPa)
• Available with dedicated brackets.

Dimensions and Weights

Nominal size	d	L	H	H1	Weight (kg)
6A	Rc 1/8	40	80.5	24	0.36
8A	Rc 1/4	40	80.5	24	0.36
10A	Rc 3/8	58	101.5	33.5	0.73
15A	Rc 1/2	58	101.5	33.5	0.73

Structure is different depends on nominal size.

Selection Chart

Flow Characteristic Chart and Cv Value

Offset pressure and Cv value

Nominal size	Reduced pressure	Offset pressure	Cv value
6A-8A	0.02-0.2 MPa	Within 0.03 MPa	0.1
6A-8A	0.05-0.7 MPa	Within 0.05 MPa	0.1
10A-15A	0.02-0.2 MPa	Within 0.03 MPa	0.2
10A-15A	0.05-0.7 MPa	Within 0.05 MPa	0.2

Drawings and Component Materials

6A-8A Drawing Dimensions

Size	d	L	T	H1	H2	H	Plug
6A	Rc 1/8	40	40	24	22	80.5	R 1/4
8A	Rc 1/4	40	40	24	22	80.5	R 1/4

10A-15A Drawing Dimensions

Size	d	L	H1	H2	H	Plug
10A	Rc 3/8	58	33.5	27	101.5	R 1/4
15A	Rc 1/2	58	33.5	27	101.5	R 1/4