Best How To Repair A Wilkins 720A Pressure Vacuum Breaker

• Temp. Range: 33 Degrees To 110 Degrees F
• Size: 1/2" To 1"
• Body Material: Rubber, Plastic And Steel
• Brand Name: Zurn

• Zurn-Wilkins 34-600XL 3/4" Bronze Pressure Reducing Valve, FNPT Union and FNPT Female Thread
• All bronze body and bell housing provides durability and long life
• Built-in bypass prevents buildup of excessive system pressure caused by thermal expansion
• May be installed in any position
• Serviceable in-line

• Maximum working water pressure 150 PSI
• Maximum working water temperature 110 DegreeF
• Hydrostatic test pressure 300 PSI
• End connections threaded ANSI B1.20.1
• All bronze body and bonnet construction
• Standards Compliance: ASSE Listed 1020, IAPMO Listed, CSA Certified

• FEBCO is so confident of the heavy-duty construction and "freeze plug" design of the Series 765, it is the only manufacturer to offer a lifetime warranty on the bronze valve body of the 1⁄2" through 11⁄4" models*. In most pressure vacuum breaker designs, the bronze body can split open when water inside expands in freezing temperatures. When this happens, the whole unit must be replaced which can be expensive and downright inconvenient. But should an unexpected freeze catch your irrigation system by surprise, the bronze body of the FEBCO Series 765 will remain intact while less expensive and easy-to-replace internal plastic components are sacrificed to the freeze damage. This "freeze plug" feature means replacing damaged plastic parts at just a fraction of the cost of the complete valve. *Only the bronze body of the 1⁄2" through 11⁄4" Series 765s are covered by the lifetime body warranty. Ball valves, test cocks and internal components are not considered part of the bronze body. All backflow preventers must be protected against freezing, or damage may occur.