Safety and Relief Valve AL-280 | Yoshitake Inc.

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Safety and Relief Valve


* Superior durability due to stainless steel trim parts.
* Effective for pump with high pulsation pressure or large pressure fluctuation
* Body made of high tensile strength material \\\"FCD450\\\"

Feature Proportional type / Flanged / Ductile iron / Closed type
Category Relief valve
Proportional type
Specifications Application Cold and hot water , Oil
Setting Pressure 0.05 - 1MPa("\"\\\"Refer to setting pressure range table\\")
Connection JIS 10K FF flanged
Max. temperature 120 degree(C)
Material Valve case Ductile cast iron
Spring case Ductile cast iron
Valve Stainless steel
Valve seat Stainless steel

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Size L (mm) H1 (mm) Weight (kg)
15A(1/2) 90 108 4.7
20A(3/4) 90 108 5.0
25A(1) 90 108 6.2
32A(1 1/4) 91 115 8.6
40A(1 1/2) 91 115 8.8
50A(2) 105 132 13.0

[About flow rate]

Selection data: Nominal size selection chart (for water)  Set pressure range 

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Dimensional drawing
Dimensional drawing:AL-280

Data Downloading
Drawing (67 KB)
CAD external view (86 KB)

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