Safety and Relief Valve
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AL-4ST
* Simple structure and easy maintenance * Tight seal because of PTFE disc * Line-up of body material: ductile cast iron and stainless steel * Max. set pressure: 2.0 MPa |
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| Feature | Lift type / Flanged / Ductile cast / Max. 2.0 MPa | |
| Category | Safety relief valve | |
| Type | Lift type | |
| Specifications | Application | Air , Oil , Cold and hot water , Non-dangerous fluids |
| Pressure range | 0.05 - 2.0MPa("(*1) Refer to setting pressure range table.") | |
| Connection | JIS 10K FF , JIS 16K FF , JIS 20K FF | |
| Max. temperature | 150 degree(C) | |
| Material | Valve case | Ductile cast iron (*2) |
| Spring case | Ductile cast iron (*2) | |
| Valve | Stainless steel (PTFE disc incorporated) | |
| Valve seat | Stainless steel (PTFE disc incorporated) | |
| *1 When working pressure is more than 1.2 MPa (for 65A and 80A) or 1.0 MPa (for 100A and 125A), a metal-to-metal seating is incorporated in. *2 Available with stainless steel made. |
| Size | L (mm) | H1 (mm) |
| 65A(2 1/2) | 135 | 125 |
| 80A(3) | 135 | 135 |
| 100A(4) | 160 | 150 |
[About flow rate]
| Selection data： | Set pressure range |
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| Drawing (324 KB) |
| CAD external view (34 KB) |
