Specifications:
Material: Plastic + brass + rubber
Function: Protect the water supply system
Package: 1* Bonnet and Poppet Repair Kit (1 x Nut, 1 x Bonnet, 1 x O-Ring, 1 x Spring, 1 x E-Ring, 1 x Washer, 1 x Stem, 1 x Rubber, 1 x Poppet)
Function:
- If your pressure vacuum circuit breaker system is damaged, you can use this sprinkler backflow preventer for simple replacement, and will save your maintenance costs, very practical.
- The bonnet repair kit can effectively avoid frostbite and water leakage of the valve body.
- Please note that when installing the pressure vacuum breaker, do not pull the parts too tight. You can tighten them by hand, and maintain a certain tension. Excessive force may cause damage.
Installation steps of the pressure vacuum breaker repair kit:
1. Close the outlet shutoff valve and inlet shutoff valve, and drain the remaining water.
2. Unscrew the top nut, remove the brass cap, and take out the old Bonnet and Poppet parts, using a wrench tool if necessary.
3. Put the new poppet in, place the O-ring on the edge of the valve cap, and then put the valve cap thread in and tighten it. Secure and secure the top nut behind by threading the cap post through the cap hole.
4. Open the inlet ball valve to pressurize the device. ,temporary splash is normal,the "splash"will auto shutoff once the device is fully pressurized. Finally, slowly open the outlet ball valve.