WebA 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. WebFisher 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 …
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WebType 289H: 1 NPT - 4 Pounds / 2 kg, 2 NPT - 15 Pounds / 7 kg Type 289HH: 4 Pounds / 2 kg Type 289L: 15 Pounds / 7 kg. 289H: Relief Adjustment Ranges ... / DN 25 Type 289H … WebTypes 289H, 289L and 289U Relief Valves Introduction The 289 Series relief valve is a throttling relief valve used downstream of pressure regulators to protect the downstream system from overpressure. A … ioqa 2021 cut off
289 series Spring-Loaded Relief Valves - FISHER …
WebType 289H: 1 NPT - 4 Pounds / 2 kg, 2 NPT - 15 Pounds / 7 kg Type 289HH: 4 Pounds / 2 kg Type 289L: 15 Pounds / 7 kg. 289H: Relief Adjustment Ranges ... / DN 25 Type 289H Relief Valves Schematic, Fisher-EN PDF. Size: 1.4mb. Manuals & Guides Manuals: 289 Series Relief Valves Instruction Manual, Fisher-EN ... WebFisher Valves & Instruments 22.5K subscribers Subscribe 21K views 5 years ago Learn why you get more value when you buy Fisher control valves, actuators, and instruments—and what makes them... WebType 289H (2 NPT): Zinc Temperature Capabilities(1) With Nitrile (NBR) and Neoprene (CR) Elastomer:-20 to 150°F / -29 to 66°C With Fluorocarbon (FKM): 20 to 300°F / -7 to 149°C … on the rather small side