Yoshitake GD-9N is a compact and lightweight pressure reducing valve designed for air and other non-dangerous fluids. It features easy pressure range adjustment via a handle and zero valve seat leakage, making it suitable for precise control applications. The valve is constructed with an aluminum die casting body and NBR diaphragm, providing reliable performance in temperatures ranging from 5 to 60°C.

Features

• Compact and lightweight.
• Easy to adjust wide pressure range by handle.
• The valve can be fitted with a pressure gauge to measure the outlet pressure.

WARNING

The product cannot be used for toxic and flammable gases.

TIP

• Available with dedicated brackets.
• Available with 6 types pressure gauge. 15A, 20A, 25A - Outer diameter φ 42.5 - Max. 1.0 MPa or 0.4 MPa or 0.2 MPa

Specifications

Model	GD-9N
Nominal size	25A / 8A, 10A, 15A, 20A
Application	Air, Other non-dangerous fluids
Inlet pressure	0.1-1.0 MPa
Reduced pressure	0.05-0.85 MPa (25A) / 0.05-0.7 MPa (8A, 10A, 15A, 20A)
Application temperature	5-60°C
Material (Body)	Aluminum die casting
Material (Valve)	NBR
Material (Diaphragm)	NBR
Relief pressure	Set pressure + 0.05 MPa
Connection	JIS Rc screwed
Structure	Relief type
Valve seat leakage	No leakage

Dimensions and Weights

Nominal size	d	L	H	H1	Pressure gauge connection port	Weight (kg)
8A	Rc 1/4	53	93.9	23.5	Rc 1/8	0.19
10A	Rc 3/8	53	110.5	27	Rc 1/8	0.34
15A	Rc 1/2	70	133.5	33.5	Rc 1/8	0.58
20A	Rc 3/4	75	135	33.5	Rc 1/8	0.6
25A	Rc 1	95	175.6	46	Rc 1/8	1.22

Flow Characteristic Chart for each Nominal Sizes [Air: Inlet pressure 0.7MPa]

• No constraint in minimum adjustable flow rate.

Pressure Characteristic Charts

Dimensional Drawings

Size	d	L	L1	b	H	H1	Plug d	Weight (kg)	Plug
8A	Rc1/4	53	53	3.5	117	30.5	M38x1.5	0.27	R1/8
10A	Rc3/8	53	53	3.5	117	30.5	M38x1.5	0.27	R1/8
15A	Rc1/2	70	71	--	127	35.5	M42x1.5	0.48	R1/8
20A	Rc3/4	75	71	--	128.5	35.5	M42x1.5	0.51	R1/8

• H dimension is the dimension when the handle is unlocked.

Internal Structure

No.	Name of Parts	Material
1	Body	Aluminum ADC
2	Bonnet	POM
3	Handle	POM
4	Valve Assembly	------ (1 set)
5	Diaphragm Assembly	------ (1 set)
6	Valve Guide Assembly	------ (1 set)
7	Plug (with O-ring)	------ (2)
8	Label	PET
9	Set Nut	POM