Safety and Relief Valve
AF-4
* High capacity with full bore design
* Reliable performance because of precise machining and heat treatment on trim parts
Specifications
| Features | For steam, full bore, flanged, lever | |
|---|---|---|
| Type | Safety valve | |
| Specifications | Product type | Full bore type safety valve |
| Nominal size | 25A (1") - 150A (6") | |
| Application | Steam, air | |
| End connection | JIS 10K FF flanged (inlet flange of 100-150A is 10KRF)* | |
| Working pressure | 0.1 - 1 MPa | |
| Max. temperature | 220 degree(C) | |
| Material | Body | Ductile cast iron |
| Spring case | Ductile cast iron | |
| Valve and valve seat | Stainless steel | |
Remarks
* Stellite overlaid stainless steel for 80A or large in nominal size.
Dimensions and Weights
| Size | L (mm) | H1 (mm) | Weight (kg) | Inlet x Throat x Outlet |
|---|---|---|---|---|
| 25A(1) | 100 | 100 | 12 | 25 x 16 x 40 |
| 40A(1 1/2) | 120 | 120 | 21 | 40 x 26 x 65 |
| 50A(2) | 130 | 130 | 27 | 50 x 30 x 75 |
| 65A(2 1/2) | 150 | 150 | 41 | 65 x 40 x 100 |
| 80A(3) | 165 | 160 | 60 | 80 x 49 x 125 |
| 100A(4) | 215 | 200 | 115(119) | 100 x 76 x 150 |
| 125A(5) | 220 | 210 | 135(143) | 125 x 84 x 200 |
| 150A(6) | 250 | 230 | 203(214) | 150 x 100 x 200 |
* The values in parenthesis is for JIS10KRF.
About flow rate
Selection data：
Capacity table
Dimensional drawing
