Series N170
Hot Water Master Tempering Valves
Description:
Watts Series N170 hot water master tempering valves are especially designed for use on larger hot water supply systems for mixing hot and cold water for a variety of applications to extend the hot water supply. This series uses paraffin-based thermostat to sense and adjust outlet temperature.
Features:
- ASSE 1017 and IAPMO CUPC Listed
- N170-M3 uses paraffin-based thermostat to sense and adjust outlet temperature
- Dirt and lime resistant poppet and seat design
- Virtual shutoff if supply pressure fails
- Vandal-resistant locking mechanism to secure temperature setting
- Factory tested
Specifications:
Maximum Operating Pressure 125psig (861 kPa)
Maximum Hot Water Temperature 200°F (93°C)
Minimum Hot Water Supply Temperature 5°F (3°C) Above Set Point*
Temperature Adjustment Range** 90 - 180°F (32 - 82°C)
Hot Water Inlet Temperature Range 120 - 180°F (42 - 82°C)
Cold Water Inlet Temperature Range 40 - 80°F (4 - 27°C)
Listing ASSE 1017, IAPMO CUPC
Approval Standards ASSE 1017, CSA B125.3
* With Equal Pressure
** Low Limit cannot be less than the cold water temperature. For best operation, hot water should be at least 5°F (3°C) above desired set point.
Capacity:
Flow Capacity at 50-50 mixed Less Checkstops | |||||||||
---|---|---|---|---|---|---|---|---|---|
Pressure Drop Across Valve | |||||||||
Model | Inlet / Outlet (NPT) |
Min. Flow to ASSE 1017 |
CV | 5psi (34 kPa) |
10psi (69 kPa) |
20psi (138 kPa) |
30psi (207 kPa) |
45psi (310 kPa) |
60psi (414 kPa) |
3/4" N170-M3 |
3/4 x 3/4" |
3 gpm 11 lpm |
6.70 |
15 gpm 57 lpm |
21 gpm 79 lpm |
30 gpm 114 lpm |
37 gpm 140 lpm |
45 gpm 170 lpm |
52 gpm 197 lpm |
1" N170-M3 |
1 x 1" |
4 gpm 15 lpm |
10.13 |
23 gpm 87 lpm |
32 gpm 121 lpm |
45 gpm 170 lpm |
56 gpm 212 lpm |
68 gpm 257 lpm |
79 gpm 299 lpm |
1 1/4"N170-M3 | 1-1/4 x 1-1/4" | 4 gpm 15 lpm |
14.16 | 32 gpm 121 lpm |
45 gpm 170 lpm |
63 gpm 238 lpm |
76 gpm 288 lpm |
95 gpm 360 lpm |
110 gpm 416 lpm |
1 1/2"N170-M3 |
1-1/2 x 1-1/2" |
5 gpm 19 lpm |
15.65 |
35 gpm 134 lpm |
49 gpm 185 lpm |
70 gpm 265 lpm |
86 gpm 326 lpm |
105 gpm 397 lpm |
121 gpm 458 lpm |
2" N170-M3 |
2 x 1-1/2 x 2" |
7 gpm 26 lpm |
18.63 |
42 gpm 159 lpm |
59 gpm 223 lpm |
83 gpm 314 lpm |
102 gpm 386 lpm |
125 gpm 473 lpm |
144 gpm 545 lpm |
Flow Capacity at 50-50 mixed with Checkstops | |||||||||
---|---|---|---|---|---|---|---|---|---|
Pressure Drop Across Valve | |||||||||
Model | Inlet / Outlet (NPT) | Min. Flow to ASSE 1017 | CV | 5psi (34 kPa) | 10psi (69 kPa) | 20psi (138 kPa) | 30psi (207 kPa) | 45psi (310 kPa) | 60psi (414 kPa) |
3/4" N170-M3 CSUT | 3/4 x 3/4" | 3 gpm 11 lpm |
6.26 | 14 gpm 53 lpm |
20 gpm 76 lpm |
28 gpm 106 lpm |
34 gpm 129 lpm |
42 gpm 159 lpm |
48 gpm 182 lpm |
1" N170-M3 CSUT | 3/4 x 1" | 4 gpm 15 lpm |
9.54 | 21 gpm 79 lpm |
30 gpm 114 lpm |
43 gpm 163 lpm |
52 gpm 197 lpm |
64 gpm 242 lpm |
74 gpm 280 lpm |
1 1/4"N170-M3 CSUT | 1-1/4 x 1-1/4" | 4 gpm 15 lpm |
13.42 | 30 gpm 114 lpm |
42 gpm 159 lpm |
60 gpm 227 lpm |
74 gpm 280 lpm |
90 gpm 341 lpm |
104 gpm 394 lpm |
1 1/2"N170-M3 CSUT | 1-1/4 x 1-1/2" | 5 gpm 19 lpm |
14.9 | 33 gpm 125 lpm |
47 gpm 128 lpm |
67 gpm 254 lpm |
82 gpm 310 lpm |
100 gpm 379 lpm |
115 gpm 435 lpm |
2" N170-M3 CSUT | 1-1/4 x 2" | 7 gpm 26 lpm |
17.89 | 40 gpm 151 lpm |
57 gpm 216 lpm |
80 gpm 303 lpm |
98 gpm 371 lpm |
120 gpm 454 lpm |
139 gpm 526 lpm |
Dimensions:
Model | Body Inlets NPT |
Checkstop Inlets NPT |
Body Outlet NPT |
Dimensions | Weight | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | E | F | G | H | J | |||||||||||||||
in. | mm | in. | mm | in. | mm | in. | mm | in. | mm | in. | mm | in. | mm | in. | mm | in. | mm | lbs. | kgs. | ||||
3⁄4 N170-M3 | 3⁄4 | N/A | 3⁄4 | N/A | 41⁄2 | 114 | N/A | 31⁄2 | 89 | N/A | 17⁄16 | 36 | 35⁄8 | 92 | 47⁄8 | 124 | 215⁄16 | 75 | 4.8 | 2.2 | |||
3⁄4 N170-M3 CSUT | N/A | 3⁄4 | 3⁄4 | 91⁄4 | 235 | 41⁄2 | 114 | 117⁄16 | 291 | 31⁄2 | 89 | 113⁄16 | 46 | 17⁄16 | 36 | 35⁄8 | 92 | 47⁄8 | 124 | 215⁄16 | 75 | 9.8 | 4.5 |
1 N170-M3 | 1 | N/A | 1 | N/A | 49⁄16 | 116 | N/A | 31⁄2 | 89 | N/A | 17⁄16 | 36 | 35⁄8 | 92 | 47⁄8 | 124 | 215⁄16 | 75 | 4.8 | 2.2 | |||
1 N170-M3 CSUT | N/A | 3⁄4 | 1 | 101⁄8 | 264 | 49⁄16 | 116 | 129⁄16 | 319 | 31⁄2 | 89 | 113⁄16 | 46 | 17⁄16 | 36 | 35⁄8 | 92 | 47⁄8 | 124 | 215⁄16 | 75 | 10.3 | 4.9 |
11⁄4 N170-M3 | 11⁄4 | N/A | 11⁄4 | N/A | 61⁄16 | 154 | N/A | 37⁄16 | 87 | N/A | 13⁄4 | 44 | 311⁄16 | 94 | 51⁄4 | 133 | 41⁄2 | 114 | 9.4 | 4.3 | |||
11⁄4 N170-M3 CSUT | N/A | 11⁄4 | 11⁄4 | 121⁄16 | 306 | 61⁄16 | 154 | 151⁄16 | 383 | 37⁄16 | 87 | 21⁄2 | 64 | 13⁄4 | 44 | 311⁄16 | 94 | 51⁄4 | 133 | 41⁄2 | 114 | 19.3 | 8.8 |
11⁄2 N170-M3 | 11⁄2 | N/A | 11⁄2 | N/A | 61⁄16 | 154 | N/A | 37⁄16 | 87 | N/A | 13⁄4 | 44 | 311⁄16 | 94 | 51⁄4 | 133 | 41⁄2 | 114 | 9.1 | 4.1 | |||
11⁄2 N170-M3 CSUT | N/A | 11⁄4 | 11⁄2 | 131⁄4 | 337 | 61⁄16 | 154 | 161⁄4 | 413 | 37⁄16 | 87 | 21⁄2 | 64 | 13⁄4 | 44 | 311⁄16 | 94 | 51⁄4 | 133 | 41⁄2 | 114 | 19.8 | 9 |
2 N170-M3 | 2 (Hot) 11⁄2 (Cold) | N/A | 2 | N/A | 67⁄16 | 164 | N/A | 33⁄16 | 81 | N/A | 21⁄16 | 52 | 37⁄8 | 98 | 53⁄8 | 137 | 41⁄2 | 114 | 10.4 | 4.7 | |||
2 N170-M3 CSUT | N/A | 11⁄4 | 2 | 133⁄4 | 349 | 67⁄16 | 164 | 163⁄4 | 425 | 33⁄16 | 81 | 21⁄2 | 64 | 21⁄16 | 52 | 37⁄8 | 98 | 53⁄8 | 137 | 41⁄2 | 114 | 21.3 | 9.7 |