Zurn 1-720A - 1" Pressure Vacuum Breaker Assembly (PVB)

 

Zurn

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The Zurn Wilkins 720A Pressure Vacuum Breaker Assembly is used in high hazard applications for protection. Applications are primarily non-potable residential and commercial irrigation systems.

  • Top of the line protection
  • All bronze body and bonnet construction
  • Proven reliability and consistent performance
  • We’ll maintain safety, costs and comfort, keeping you in control

The 1 in. 720A Pressure Vacuum Breaker Assembly protects against backsiphonage in high health hazard, non-potable residential and commercial irrigation applications. The 720A includes an approved check valve, vacuum relief, two test cocks, and inlet and outlet full port resilient seated shut-off valves. It also features a maximum pressure of 150 psi and a temperature range of 33°F to 110°F. The corrosion-resistant internal parts and all bronze bonnet and body construction provides added strength and protection against light freezes, while the tapped ball valves allow for easy installation in any position.

  • Serial number visible in any installed orientation reduces labor time
  • Consistent, reliable performance provides world class back siphonage protection
  • Construction offers corrosion-resistance, strength, and winterization protection
  • ASSE Listed 1020
  • CSA Certified
  • Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California
  • Corrosion-resistant internal parts and all bronze bonnet and body construction provides added strength and protection against light freezes
  • Tapped ball valves allow for easy installation in any position
  • For use in non-potable residential and commercial irrigation applications
  • Pressure Vacuum Breaker Assembly is used in high hazard applications for protection

Specification sheet

Installation guide

WARNING!

Irrigation systems supplied by domestic or private potable water systems are considered to be a potential pollution hazard to the water supply. These systems must include protection to prevent possible backflow of irrigation water into the potable water supply.

Federal law requires a proper backflow device to be installed on any watering system to prevent contamination of the supply; whether it be pump or city water. Check your local water authority for installation requirements & codes. In many rural areas; specific requirements for landscape irrigation systems may not be covered in local plumbing codes and/or enforcement may be limited. HOWEVER...limitation in local authority does not alter the basic requirement for protection of the potable water supply.

Capacity thru Schedule 40 Pipe
PIPE SIZE 5 FT/SEC. 7.5 FT/SEC. 10 FT/SEC. 15 FT/SEC.
1/8" 1 1 2 3
1.4" 2 2 3 5
3/8" 3 4 6 9
1/2" 5 7 9 14
3/4" 8 12 17 25
1" 13 20 27 40
1 1/4" 23 35 47 70
1 1/2" 32 48 63 95
2" 52 78 105 167

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