- Superior durability with all stainless steel made
- Small and compact
- Max. set pressure: 2.0 MPa
Japan, Yoshitake
YOSHITAKE AL-31H Safety and Relief Valve

Made in Japan
Manufacturer: Yoshitake
Model: AL-31H
Specifications
| Features | Stainless steel, closed, flanged, Max. 2.0MPa | |
|---|---|---|
| Type | Safety relief valve | |
| Specifications | Product type | Safety valve/Relief valve |
| Nominal size | 15A (1/2″) – 50A (2″) | |
| Application | Steam, air, water, oil | |
| End connection | JIS 16K RF or JIS 20K RF flanged | |
| Working pressure | 1 – 2 MPa | |
| Max. temperature | 220 degree(C) (*) | |
| Material | Body | Stainless steel |
| Spring case | Stainless steel | |
| Valve and valve seat | Stainless steel | |
Remarks
* The maximum temperature is 150 degree(C) when using for water, oil, or other liquids.
Dimensions and Weights
| Size | L (mm) | H1 (mm) | Weight (kg) |
|---|---|---|---|
| 15A(1/2) | 73 | 72 | 3.4 |
| 20A(3/4) | 77 | 74 | 4.5 |
| 25A(1) | 91 | 87 | 6.6 |
| 32A(1 1/4) | 96 | 92 | 8.3 |
| 40A(1 1/2) | 114 | 100 | 11.7 |
| 50A(2) | 116 | 107 | 18 |
About flow rate
Selection data:


Dimensional drawing












