This 2 in lead-free anti-siphon pressure vacuum breaker backflow preventer prevents the reverse flow of polluted water from entering into the potable water supply due to back siphonage. It consists of a bronze body construction silicone rubber check valve disc, plastic check valve seat, stainless steel springs, a bonnet with silicone rubber O-ring seal, a lightweight plastic disc float, lever handle shutoff and test cocks for winterization draining. It is ideal in health hazard continuous pressure applications such as irrigation systems and industrial process water systems where the water enters the equipment at or below its flood rim. The maximum pressure is 150 psi (10.3 bar) and the minimum pressure is 15 psi (55 kPa).
WATTS® Vacuum Breaker, Model: LF800M4QT-4, 2 in Nominal, NPT Connection, 150 psi, Lead-Free, Bronze Body, Stainless Steel Trim, Plastic/Silicone Rubber Softgoods, 33 to 140 deg F, 10-5/8 in L x 9-5/8 in H, Additional Information: 16.6 Weight
| Additional Information | : | 16.6 Weight |
| Body Material | : | Bronze |
| Connection Type | : | NPT |
| Dimensions | : | 10-5/8 in L x 9-5/8 in H |
| Lead-Free/Contains Lead | : | Lead-Free |
| Model | : | LF800M4QT-4 |
| Nominal Size | : | 2 in |
| Pressure Rating | : | 150 psi |
| Softgoods Material | : | Plastic/Silicone Rubber |
| Temperature Rating | : | 33 to 140 deg F |
| Trim Material | : | Stainless Steel |
- Replaceable seat
- Easy internal access
- Female NPT inlet and outlet with quarter-turn shutoffs
- Bronze body for durability
Instruction/Installation Manual