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FISHER™ 289 Series relief valves are spring loaded throttling relief valves used as downstream pressure regulators to protect the system from overpressure. A smooth throttling action minimizes pressure surges in the system during relief operation. 289 Series relief valves are ideal for low pressure settings due to the increased sensitivity provided by a large diaphragm area. 289 Series relief valves are designed for pressure control, they are not ASME safety relief valves.
FISHER™ Relief Valve, Series: 289 Series, 1 in Nominal, NPT Connection, 1 to 50 psig, Aluminum Body, NBR/FKM Seat, FKM/NBR Softgoods
| Body Material | : | Aluminum |
| Connection Type | : | NPT |
| Nominal Size | : | 1 in |
| Pressure Rating | : | 1 to 50 psig |
| Seat Material | : | NBR/FKM |
| Series | : | 289 Series |
| Softgoods Material | : | FKM/NBR |
- Throttling type relief
- High flow rates
- Small size
- Reliability due to simplicity
- Compact design
Instruction/Installation Manual