Watts LF1170 Lead Free Hot Water Temperature Control Valves are specifically designed for mixing hot and cold water on hot water supply systems. They can be used for a variety of applications to reduce the temperature of the hot water from the system, and are ideal for radiant heat applications. This series features a “double throttling” design which combines the control of the hot and cold water to provide a sensitive response to changes in water temperature passing through the mixing chamber. The Watts 1170-M2 can be set to any temperature between 90+F and 160+F (60+F and 120+F for model L1170-M2) with flow rates as low as 0.5 gpm and as high as 23 gpm. The superior flow characteristics of this valve provide accurate temperature control to the requirements of ASSE 1017 across the rated flow range. These valves also provide additional safety as they restrict mixed water out to a drip upon loss of cold water supply to the valve. As an added feature, the 1170-M2, L1170-M2 series incorporates integral check valves and filter washers in both the hot and cold water inlets to protect against cross flow.
Maximum Pressure: 150psi (10 bar)
Product Features
- Thermal actuation technology for precise temperature control
- Lead free brass construction
- Integral filter washers and check valves
- CSA certified B125 and ASSE 1017, IAMPO and UPC listed
Specifications |
Approach Temperature |
5 |
Brand Name |
Watts |
Cold Inlet Temperature Range |
40 to 85 degree F |
Cold Water Bypass |
No |
Cold Water Inlet Connection Size |
1 IN |
Cold Water Inlet Connection Type |
Sweat or Female Solder |
Cold Water Inlet Thread Type |
Does Not Apply To Product |
Dial Thermometer |
No |
EANUCCCode |
098268452211 |
Factory Set Temperature-Fahrenheit |
120 |
Field Adjustable Range |
90 to 120 degree F |
Hot Inlet Temperature Range |
120 to 200 degree F |
Hot Water Inlet Connection Size |
3/4 IN |
Hot Water Inlet Connection Type |
Sweat or Female Solder |
Hot Water Inlet Thread Type |
Does Not Apply To Product |
Maximum Pressure Differential |
25 percent |
Maximum Temperature-Fahrenheit |
200 |
Minimum Differential Temperature-Fahrenheit |
5 |
Minimum Static Pressure-PSI |
30 |
Outlet Connection Size |
3/4 IN |
Outlet Connection Type |
Sweat or Female Solder |
Outlet Temperature Accuracy |
+/- 3 degree F |
Outlet Thread Type |
Does Not Apply To Product |
Part Number |
0559105 |
Series |
LF170 |
Temperature Adjustment Range |
90 to 160 degree F |
Type |
Kit |
Vacuum Breaker |
No |
Technical Information
Watts Mixing Valves Specifications
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