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Watts LF7 Series dual check valves stop the reverse flow of dirty water from entering the drinking water supply at individual outlets or the service entrance.
Style | Model | Max. Working Pressure | Body Material | Disc Material | Min. Temp. | Outlet Connection | Outlet Size | Outlet Type | Seat Material | Price | |
---|---|---|---|---|---|---|---|---|---|---|---|
A | 1 LF7 U2-2 | - | - | - | - | - | - | - | - | £118.50 | |
B | 3/8 LF7 | - | - | - | - | - | - | - | - | £221.61 | |
C | 3/4 LF7 U2-2 | - | - | - | - | - | - | - | - | £108.73 | |
D | LF7-4-U2 1 1/4X1 | 10.3 Bar | Lead Free Bronze | Silicone | 33 Degree F | - | 1" | Union Female Threaded | Buna-N | £230.89 | |
E | LF7 3/8 | 10.3 Bar | Lead Free Brass | Silicone | 33 Degree F | - | 3/8" | Female Threaded | Buna-N | £229.50 | |
F | LF7-10-U2 1 1/4X1 | 10.3 Bar | Lead Free Bronze | Santoprene | 33 Degree F | - | 1" | Female Threaded | Buna-N | £231.59 | |
G | LF7U2-2 1 1/4X1 1/4 | 10.3 Bar | Lead Free Bronze | Santoprene | 33 Degree F | - | 1-1/4" | Female Threaded | Buna-N | £218.98 | |
D | LF7-10-U3 1 1/4X1 | 10.3 Bar | Lead Free Bronze | Silicone | 33 Degree F | - | 1" | Union Male Threaded | Buna-N | £317.23 | |
H | LF7U3-3 1 1/4 X 1 1/4 | 150 psi | Lead Free Copper Silicon Alloy | Silicone | 33° F | Male Threaded | 1-1/4" | Male Threaded | Buna N | £275.12 | |
I | LF7C 3/8 | 150 psi | Lead Free Copper Silicon Alloy | Silicone | 33° F | Female Threaded | 3/8" | Female Threaded | Buna N | £246.33 | |
J | LF7U4-3 1 1/4X1 | 150 psi | Lead Free Copper Silicon Alloy | Silicone | 33° F | Male Threaded | 1" | Male Threaded | Buna N | £214.74 |
These valves operate under pressures ranging from 10 to 150 psi under temperatures up to 180 degrees F.