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PRODUCT

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. 

CAD Drawings and Models: Click here

See how it works 
 
These relief valves can be used for natural gas, air, propane or other noncorrosive, gas flow service.
Click here to view the animation.
DocumentationFeatures & BenefitsSpecifications
 Product & Service Documentation
 Brochures
 Comprehensive Solutions for the Natural Gas Industry Flier
1 MBpdfJuly 2016C
English
 Comprehensive Solutions for the Natural Gas Industry Flier
1 MBpdfJuly 2016C
English
 Natural Gas Solutions Brochure (Middle East and Africa Only)
5 MBpdfJuly 2011A
English
 Wellhead to Customer Solutions Plant Map 11x17 Flier
966 KBpdfNovember 2014D
English
 Data Sheets - Bulletins - Catalogs
 289 Series Spring-Loaded Relief Valves Bulletin
449 KBpdfOctober 2014P
English
 Drawings & Schematics
 289A Schematic
96 KBpdfJuly 2015A
English
 289H 2-inch (DN 50) Relief Valve Schematic
324 KBpdfOctober 2014B
English
 289HH and 1-Inch / DN 25 Type 289H Relief Valves Schematic
356 KBpdfJuly 2015A
English
 289L Relief Valve Schematic
329 KBpdfJuly 2015A
English
 Manuals & Guides
 289 Series Relief Valves Instruction Manual
664 KBpdfOctober 2014R
English
 289A, 289H, 289HH, 289L, 289U Installation Guide
611 KBpdfSeptember 2009D
English