Safety and Relief Valve
AL-4T
* Ductile cast iron body and PTFE Disc
Specifications
| Features | Ductile cast iron, closed cap, PTFE disc | |
|---|---|---|
| Type | Safety relief valve | |
| Specifications | Product type | Safety valve/Relief valve |
| Nominal size | 65A (2-1/2") - 150A (6") | |
| Application | Air, water, oil | |
| End connection | JIS 10K FF flanged, JIS16K FF | |
| Working pressure | 0.05 - 1.5 MPa (MAX.1.0Mpa for bronze trim) | |
| Max. temperature | 150 degree(C) | |
| Material | Body | Ductile cast iron |
| Spring case | Ductile cast iron | |
| Valve and valve seat | Bronze + PTFE or stainless steel + PTFE | |
Remarks
*1 Maximum working pressure for 150A is 0.8 MPa (connection: JIS 10K FF flanged).
*2 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.
*3 JIS 16K FF flanged is used when working pressure is more than 1.0 MPa.
Dimensions and Weights (JIS 10K FF flanged)
| 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 |
Dimensions and Weights (JIS 16K FF flanged)
| 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 |
About flow rate
Selection data：
Set pressure range
Capacity table
Dimensional drawing
