Safety and Relief Valve AL-4 | Yoshitake Inc.

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Safety and Relief Valve


* Simple structure and easy maintenance
* Line-up of body material: ductile cast iron and stainless steel

Feature Lift type / Flanged / Cast iron / Open type
Category Safety valve
Type Lift type
Specifications Application Steam
Pressure range 0.05 - 1.5MPa("(*1)Refer to setting pressure range table.")
Connection JIS 10K FF flanged , JIS 16K FF flanged (*2)
Max. temperature 220 degree(C)
Material Valve case Ductile cast iron
Spring case Ductile cast iron
Valve Stainless steel
Valve seat Stainless steel
*1 Maximum working pressure for 150A type is 0.8 MPa (connection: JIS 10K FF flanged).
*2 JIS 16K FF flanged when working pressure is more than 1.0 MPa.

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Size L (mm) H1 (mm) Weight (kg)
65A(2 1/2) 120 120 20
80A(3) 130 130 22
100A(4) 160 150 44
125A(5) 200 205 88
150A(6) 210 215 113

[About flow rate]

Selection data: Set pressure range 

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Dimensional drawing
Dimensional drawing:AL-4

Data Downloading
Drawing10K 要ス (45 KB)
Drawing 16K 要ス (44 KB)
Drawing 10K (116 KB)
CAD external view (72 KB)

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