ZW205 Pilot Operated Water Pressure Relief Valve, Lead-Free*

ZW205 Pilot Operated Water Pressure Relief Valve, Lead-Free*

The Zurn Wilkins Model ZW205 Pilot Operated Pressure Relief/ Pressure Sustaining Valve is designed for applications where it is critical to maintain a pre-determined upstream pressure. The pilot assembly reacts to changes in upstream pressure allowing the main valve to modulate between the closed and open position, maintaining desired upstream set pressure. As long as the upstream pressure is below the set point of the pilot assembly, the main valve will stay in the closed position (sustaining); however, once the upstream pressure exceeds the set point of the pilot assembly, the main valve will open and relieve the excess pressure (relief). Meets the requirements of NSF/ANSI 61* *Product contains weighted average lead content less than 0.25% for wetted surfaces.
Spécification
  • The Pressure Relief / Pressure Sustaining 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 regulation, the appropriately rated pilot valve shall be field adjustable within the pressure control range of the spring. The valve shall be certified to NSF/ANSI Standard 61. The Pressure Relief / Pressure Sustaining Valve shall be a ZURN WILKINS Model ZW205.
Spécifications techniques
  • Réference unique.zurn-zw205
  • Famille de produitsAdjusting/Controlling Valves for Liquid Services
  • Groupe de produitsWater Pressure Relief Valves
  • TypeObjet (objet simple)
  • Date de publication2017-01-16
  • Numéro d'édition1
En rapport
  • Conçu enÉtats-Unis
  • Fabriqué enÉtats-Unis
Classification
  • BIMobject CatégoriePlomberie - Soupapes

Disponibilité de la région

North America
États-Unis
Canada