Safety and Relief Valve
AL-150H
* Max. set pressure: 1.6 MPa * Small and compact * Superior durability due to stainless steel made valve and valve seat |
![]() |
Feature | Lift type / Screwed / Bronze / Max. 1.6 MPa | |
Category | Safety relief valve | |
Type | Lift type | |
Specifications | Application | Steam , Air , Cold and hot water , Oil , Other non-dangerous fluids |
Pressure range | 1.0 - 1.6MPa("\"\\\"Refer to setting pressure range table.\\") | |
Connection | JIS Rc screwed | |
Max. temperature | 220 degree(C) (*) | |
Material | Spring case | Cast bronze |
Valve | Cast stainless steel (SCS14A) | |
Valve seat | Cast stainless steel (SCS14A) |

* The maximum temperature is 150 degree(C) when using for water, oil, or other liquids. |
Size | L (mm) | H1 (mm) | Weight (kg) |
15A(1/2) | 36 | 42 | 0.8 |
20A(3/4) | 38 | 47 | 0.9 |
25A(1) | 46 | 56 | 1.3 |
32A(1 1/4) | 54 | 62 | 1.9 |
40A(1 1/2) | 63 | 67 | 2.9 |
50A(2) | 77 | 80 | 5 |
[About flow rate]
Selection data: | Set pressure range |

![]() |

Drawing (128 KB) |
Instruction Manual (278 KB) |
CAD external view (128 KB) |