Wilkins ZW205FP Fire Pump Relief Valve

The Zurn Wilkins Model ZW205FP Fire Relief Valve is designed for Fire Suppression Systems to relieve high systempressures. The pilot assembly reacts quickly to increase of upstream pressure to prevent damage to system piping, valves, and sprinklers while maintaining positive pressure on fire pumps. As the water demand increases in the Fire Suppression System the Relief Valve will start to close, directing more water to suppress fires. The Relief Valve will maintain the upstream pressure at the set pressure as long as maximum flow rates of the valve are not exceeded. The Zurn Wilkins Model ZW205FP is designed to open quickly and close slowly to prevent upstream pressure surges.

Specification

The Fire Pump Relief Valve shall be a single seated, line pressure operated, diaphragm actuated, pilot controlled globe or angle valve. The valve shall seal by means of a corrosion-resistant seat and resilient, rectangular seat disc. These and other parts shall be replaceable in the field; all such service and adjustments to be possible without removing the valve from the line. The stem of the basic valve shall be guided top and bottom by integral bushings. The basic valve and its pilot control system shall contain no packing glands or stuffing boxes. The diaphragm shall not be used as a seating surface nor shall pistons be used as an operating medium. All internal and external ferrous surfaces shall be coated with a high quality, fusion epoxy coating. The pilot control system shall include a direct-acting, normally closed, spring-loaded, diaphragm actuated pilot valve with the stem guided between the diaphragm assembly and seat disc. To ensure precise pressure relief, the appropriately rated pilot valve shall be field adjustable within the pressure control range of the spring. The Fire Pump Relief Valve shall be a ZURN WILKINS Model ZW205FP.

Technical specification

Unique ref.zurn-zw205fp
Product familyAdjusting/Controlling Valves for Liquid Services
Product groupFire Pump Relief Valves
TypeObject (single object)
Date of publishing2025-09-02
Edition number1

Links

Product urlhttps://www.zurn.com/products/fire-protection/automatic-control-valves/zw205fp
Installation instructionshttps://www.zurn.com/Media-Library/web_documents/pdfs/installation/ISZW205FP-pdf.pdf
Technical descriptionhttps://files.zurn.com/spec-sheets/acv-zw205fp.pdf

Designed inUnited States

Classification

BIMobject CategoryPlumbing - Valves
IFC classificationValve
Uniclass 2015 CodePr_65_54_94_72
Uniclass 2015 DescriptionReduced pressure zone valves
CSI MasterFormat 2014 Code40 05 67
CSI MasterFormat 2014 TitleSpecialized Pressure and Flow-Control Valves
OmniClass Number23-27 31 47
OmniClass TitlePressure Regulating Valves

Region availability

North America
Anguilla
Antigua and Barbuda
Aruba
Barbados
Belize
Bermuda
British Virgin Islands
Canada
Caribbean Netherlands
Cayman Islands
Collectivity of Saint Martin
Costa Rica
Cuba
Curaçao
Dominica
Dominican Republic
El Salvador
Greenland
Grenada
Guadeloupe
Guatemala
Haiti
Honduras
Jamaica
Martinique
Mexico
Montserrat
Nicaragua
Panama
Puerto Rico
Saint Kitts and Nevis
Saint Lucia
Saint Pierre and Miquelon
Saint Vincent and the Grenadines
Saint-Barthélemy
Sint Maarten
The Bahamas
Trinidad and Tobago
Turks and Caicos Islands
U.S. Virgin Islands
United States

Wilkins ZW205FP Fire Pump Relief Valve

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