289 Series Relief Valves / Backpressure Regulators 

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.

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DocumentationFeatures & BenefitsSpecifications
 Product & Service Documentation
 Natural Gas Solutions Brochure (Middle East and Africa Only)
5 MBpdfJuly 2011A
 Regulators / Relief Valves Chart Flier
677 KBpdfJune 2013B
 Wellhead to Customer Solutions Plant Map 11x17 Flier
2 MBpdfJuly 2013C
 Wellhead to Customer Solutions Plant Map 8.5x11 Flier
118 MBpdfJuly 2013A
 Data Sheets - Bulletins - Catalogs
 289 Series Spring-Loaded Relief Valves Bulletin
710 KBpdfFebruary 2012M
 Drawings & Schematics
 289H 2-inch (DN 50) Relief Valve Schematic
779 KBpdfAugust 2007A
 Manuals & Guides
 289 Series Relief Valves Instruction Manual
729 KBpdfMay 2013P
 289A, 289H, 289HH, 289L, 289U Installation Guide
612 KBpdfSeptember 2009D
Type 289H Relief Valve
Type 289H Relief Valve
Type 289H Relief Valve Type 289L Relief Valve
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