WATTS Mixing Valves

Used with water heaters to mix hot and cold water for a safer outlet temperature and to prevent scalding & thermal shock. Follow ASSE and CSA standards and have a maximum flow rate of 23 gpm

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Watts mixing valves are constructed in accordance with American Society of Sanitary Engineering (ASSE) standards 1016, 1017, 1069 and 1070. These lead-free valves are used for mixing cold & hot... Read More

StyleModelInlet SizeOutlet SizeOverall HeightOverall WidthPrice (inc. GST)
A00062741"1"5 13/16"5 11/16" SGD 652.71
A00062721/2"1/2"5 5/16"4.75" SGD 424.60
A00062733/4"3/4"5 9/16"5.25" SGD 524.94
WATTS -

Thermostatic Mixing Valves

StyleModelOutlet SizeBody MaterialCapacityOutlet Temperature AccuracyOutlet TypeFlow RateInlet ConnectionInlet SizePrice (inc. GST)
ALFMMVM1-CPVC 11"Lead Free Copper Silicon Alloy20 Gpm at 125 Psi-Union CPVC0.5 to 20 gpm-- SGD 1045.11
BLFMMVM1-QC 11"Lead Free Copper Silicon Alloy13 Gpm-Quick Connect13 gpm-- SGD 1100.18
CLFMMVM1-UT 11"Lead Free Copper Silicon Alloy20 Gpm at 125 Psi+/- 7° FFemale Threaded0.5 to 20 gpmFemale Threaded1" SGD 468.15
DLFMMVM1-US 11"Lead Free Copper Silicon Alloy20 Gpm at 125 Psi+/- 7° FSocket0.5 to 20 gpmSocket1" SGD 468.15
ELFMMVM1-PEX 11"Lead Free Copper Silicon Alloy20 Gpm at 125 Psi+/- 3° FCrimped0.5 to 20 gpmCrimped1" SGD 1045.11
ALFMMVM1-CPVC 1/21/2"Lead Free Copper Silicon Alloy13 Gpm at 45 Psi-Push0.5 to 13 Gpm-- SGD 637.07
FLFMMVM1-UT (W/PRESS) 11/2"Lead Free Copper Silicon Alloy20 Gpm at 125 Psi+/- 7° FPress0.5 to 13 GpmPress1" SGD 542.91
GLFMMVM1-UT (W/PRESS) 3/41/2"Lead Free Copper Silicon Alloy--Press0.5 to 13 Gpm-- SGD 464.77
FLFMMVM1-UT (W/PRESS) 1/21/2"Lead Free Copper Silicon Alloy20 Gpm at 125 Psi+/- 7° FPress0.5 to 13 GpmPress1/2" SGD 416.70
DMMV-US-M1 120F 1/21/2"--+/- 3° FUnion Solder-Union Solder1/2" SGD 466.85
ELFMMVM1-PEX 1/21/2"Lead Free Copper Silicon Alloy20 Gpm at 125 Psi+/- 7° FCrimped0.5 to 20 gpmCrimped1/2" SGD 637.07
HLFMMVM1-US 1/21/2"Lead Free Copper Silicon Alloy13 Gpm at 45 Psi-Socket0.5 to 13 Gpm-- SGD 390.11
ILFMMVM1-UT 1/21/2"Lead Free Copper Silicon Alloy13 Gpm at 45 Psi-Female Threaded0.5 to 13 Gpm-- SGD 390.11
JLFMMVM1-PEX-Z4 1/21/2"Lead Free Copper Silicon Alloy13 Gpm at 45 Psi-Crimped0.5 to 13 Gpm-- SGD 618.32
BLFMMVM1-QC 1/21/2"Lead Free Copper Silicon Alloy13 Gpm at 45 Psi-Quick Connect0.5 to 13 Gpm-- SGD 693.41
ILFMMVM1-UT 3/43/4"Lead Free Copper Silicon Alloy13 Gpm at 45 Psi-Female Threaded0.5 to 13 Gpm-- SGD 429.20
KLFMMVM1-PEX 3/43/4"Lead Free Copper Silicon Alloy20 Gpm at 125 Psi-Crimped0.5 to 20 gpm-- SGD 794.76
HLFMMVM1-US 3/43/4"Lead Free Copper Silicon Alloy13 Gpm at 45 Psi-Socket0.5 to 13 Gpm-- SGD 429.20
LLFMMV-HTK 3/43/4"Lead Free Copper Silicon Alloy13 Gpm at 45 Psi--0.5 to 13 Gpm-- SGD 409.49
BLFMMVM1-QC 3/43/4"Lead Free Copper Silicon Alloy13 Gpm-Quick Connect13 gpm-- SGD 852.34
ALFMMVM1-CPVC 3/43/4"Lead Free Copper Silicon Alloy13 Gpm at 45 Psi-Push0.5 to 13 Gpm-- SGD 794.76
MLFUSG-B-M23/8"Lead Free Brass2.25 Gpm-Compression Joint0.25 to 2.25 Gpm-- SGD 288.42
StyleModelCapacityFlow RateInlet SizeOutlet Temperature AccuracyPrice (inc. GST)
ALFN170M3 168 gpm At 45 psi4 to 68 gpm1"+/- 5° F SGD 3174.14
ALFN170M3 1 1/495 gpm At 45 psi4 to 95 gpm1 1/4"+/- 7° F SGD 4898.88
ALFN170M3 1 1/2105 gpm At 45 psi5 to 105 gpm1 1/2"+/- 7° F SGD 5359.51
ALFN170M3 2125 gpm At 45 psi7 to 125 gpm2"+/- 7° F SGD 8035.47
WATTS -

Hot Water Extender Mixing Valves

StyleModelHot Inlet Temperature RangeInlet ConnectionOutlet ConnectionOutlet SizeOutlet TypePrice (inc. GST)
ALF70AT 3/4---3/4"Female Threaded SGD 544.45
BLF70A 3/4---3/4"Socket SGD 466.85
BLFL70A 3/4---3/4"Socket SGD 573.24
CLFL70A-F 1/2100 to 130° FSocketSocket1/2"Socket SGD 495.67
DLFL70AT 1/2100 to 130° FFemale ThreadedFemale Threaded1/2"Female Threaded SGD 518.17
CLF70A-F 1/2120 to 160° FSocketSocket1/2"Socket SGD 403.02
DLF70AT 1/2120 to 160° FFemale ThreadedFemale Threaded1/2"Female Threaded SGD 445.58
WATTS -

Mixing Valves

StyleModelOverall WidthBody MaterialFlow RateTemp. RangeInlet SizeInlet TypeOutlet SizeOutlet TypePrice (inc. GST)
A3/4 LF 1170 PEX-------- SGD 401.63
RFQ
B1 LF1170M2-UT-PRESS-------- SGD 667.04
B1/2 LF1170M2-UT-PRESS-------- SGD 586.64
B3/4 LF1170M2-UT-PRESS-------- SGD 614.24
C1 LFMMVM1-UT-PRESS-------- SGD 679.25
C3/4 LFMMVM1-UT-PRESS-------- SGD 592.85
C1/2 LFMMVM1-UT-PRESS-------- SGD 552.62
D1/2 LF MMV-US-------- SGD 359.36
RFQ
E3/8 LFUSGB-M23.187"Low-Lead Brass0.5 to 2.5 gpm80 Degrees to 120 Degrees F3/8"Compression3/8"Compression SGD 429.79
F3/4 LF 1170-UT- M2 3/4"4.875"Brass0.5 to 23 gpm90 Degrees to 160 Degrees F3/4"FNPT3/4"FNPT SGD 539.00
WATTS -

LF70A Series, Mixing Valve, Lead-Free Brass

StyleModelFlow RateInlet SizeOutlet SizeOverall HeightOverall WidthPrice (inc. GST)
A1/2 LF70A-F5.5 gpm at 10 psi1/2"1/2"3 11/16"2.031" SGD 156.85
B3/4 LF70A10 gpm at 10 psi3/4"3/4"4.125"2.75" SGD 228.17
WATTS -

Thermostatic Mixing Valve, Lead Free Copper Silicon Alloy

Watts thermostatic mixing valves regulate the water temperature by mixing cold and hot water simultaneously. Watts valves are used with boiler and tempered water systems for in-floor radiant heating, soil heating, emergency shower and municipal water processing applications. These thermostatic mixing valves allow the water heater to operate at higher temperatures, extending the effective system flow rate at the valve output. This feature increases productivity. Watts mixing valves are made of lead-free copper silicon alloy to facilitate excellent manufacturing capabilities for forging, casting & machining material stocks. Watts thermostatic mixing valves reduce the size / BTU requirements, providing capacity for peak system demands. These UPC-listed valves deliver a maximum flow rate of 23 gpm and are capable of withstanding temperatures & pressures up to 160 degrees F & 150 psi, respectively. Choose from a wide range of these thermostatic mixing valves, available in union, solvent weld, quick connect and compression inlet options on Raptor Supplies. Watts heavy duty float valves and adjustable pressure relief valves are also available for various commercial water supply regulation applications.

StyleModelTemp. RangeFlow RateInlet SizeInlet TypeOutlet SizeOutlet TypeOverall HeightOverall WidthPrice (inc. GST)
ALFUSGB-M2-SC80 Degrees to 120 Degrees F2.25 gpm3/8"Compression3/8"Compression3.375"3.187"-
RFQ
BLFMMV-M1-QC80 Degrees to 120 Degrees F13 gpm3/4"Quick Connect3/4"Quick Connect6.437"6 15/16" SGD 339.34
C000627080 Degrees to 120 Degrees F12 GPM3/4"Solvent Weld3/4"Solvent Weld5 9/16"5.25" SGD 469.91
C000626980 Degrees to 120 Degrees F12 GPM1/2"Solvent Weld1/2"Solvent Weld5 5/16"4.75" SGD 310.76
DLFUSGB-M2-QC80 Degrees to 120 Degrees F2.25 gpm3/8"Quick Connect3/8"Quick Connect4"3.25" SGD 379.31
ELFMMV-M1-QC80 Degrees to 120 Degrees F13 gpm1"Quick Connect1"Quick Connect6.5"7.125" SGD 446.62
BLFMMV-M1-QC80 Degrees to 120 Degrees F13 gpm1/2"Quick Connect1/2"Quick Connect6.25"6.625" SGD 370.12
FLFMMV-M1-UT80 Degrees to 120 Degrees F13 gpm1"Union1"Threaded5.625"5 5/16" SGD 516.66
FLFMMV-M1-UT80 Degrees to 120 Degrees F13 gpm3/4"Union3/4"Threaded5.437"4.875" SGD 415.06
GLFMMV-M1-UT80 Degrees to 120 Degrees F13 gpm1/2"Union1/2"Threaded5.437"4.875" SGD 355.74
HLFMMV-M1-US80 Degrees to 120 Degrees F13 gpm1"Union1"Solder5.875"5 13/16" SGD 473.22
C000627180 Degrees to 120 Degrees F12 GPM1"Solvent Weld1"Solvent Weld5 13/16"5 11/16" SGD 721.62
ILF1170-M2-US90 Degrees to 160 Degrees F23 gpm1"Union1"Solder5.875"5 13/16" SGD 497.75
JLF1170-M2-UT90 Degrees to 160 Degrees F23 gpm1"Union1"Threaded5.625"5 13/16" SGD 500.04
KLF1170-M2-QC90 Degrees to 160 Degrees F23 gpm1/2"Quick Connect1/2"Quick Connect6.25"6.625" SGD 390.08
KLF1170-M2-QC90 Degrees to 160 Degrees F23 gpm3/4"Quick Connect3/4"Quick Connect6.437"6 15/16" SGD 235.69
KLF1170-M2-QC90 Degrees to 160 Degrees F23 gpm1"Quick Connect1"Quick Connect6.5"7.125" SGD 400.42
WATTS -

Mixing Valve, Brass

StyleModelTemp. RangeFlow RateInlet SizeInlet TypeOutlet SizeOutlet TypeOverall HeightOverall WidthPrice (inc. GST)
A3/4 LF MMV-US80 Degrees to 120 Degrees F0.5 to 20 gpm3/4"Solder3/4"Solder5.437"4.875" SGD 404.67
B1/2 LF MMV-PEX80 Degrees to 120 Degrees F20 gpm at 125 psi1/2"PEX1/2"PEX5 9/16"5.25" SGD 373.41
B3/4 LF MMV-PEX80 Degrees to 120 Degrees F20 gpm at 125 psi3/4"PEX3/4"PEX5 11/16"5.5" SGD 324.53
B1 LF MMV-PEX80 Degrees to 120 Degrees F20 gpm at 125 psi1"PEX1"PEX5.875"5.875" SGD 308.19
C1/2 LF1170M2-PEX90 Degrees to 160 Degrees F23 gpm1/2"FNPT1/2"FNPT5 9/16"5.25" SGD 423.11
D1/2 LF 1170-UT-2 1/2"90 Degrees to 160 Degrees F0.5 to 23 gpm1/2"FNPT1/2"FNPT5.437"4.875" SGD 404.87
E1/2 LF 1170-US90 Degrees to 160 Degrees F0.5 to 23 gpm1/2"Solder1/2"Solder5.437"4.875" SGD 389.60
E3/4 LF 1170-US90 Degrees to 160 Degrees F0.5 to 23 gpm3/4"Solder3/4"Solder5.437"4.875" SGD 440.89
WATTS -

Hot Water Mixing Valve, Inlet 100 To 130 Deg. F, 3/4 Inch Outlet

ModelItemPrice (inc. GST)
LFL70AT 3/4BR6ERZ SGD 639.58
WATTS -

Thermostatic Mixing Valve

ModelItemPrice (inc. GST)
3/8 LFUSG-B-SC M3CN2TNX SGD 551.46

Features

  • Watts mixing valves have integral check valves and filter gaskets in both the hot and cold water inlets to prevent cross flow and ensure that water flows in one direction only.
  • The double throttling design responds quickly to changes in water temperature.
  • The solid wax hydraulic principle thermostat regulates both hot and cold water and is designed to provide consistent mixing of hot and cold fluids.
  • Heat traps are used in thermostatic valves to reduce convection loss (also known as thermosiphon) and thus, increase system efficiency.
  • In the event that the cold water supply is compromised, the flow of mixed water is safely restricted.
  • Sweat or threaded connections are available.

Working Mechanism

  • When tempered water is used, a thermostat in the valve's mixing chamber detects the outlet temperature and automatically positions a seat assembly, which controls the flow of hot and cold water supplied to the mixing chamber.
  • If the temperature of the mixed outlet rises, the thermostat will expand, moving the seat assembly to allow the cold water inlet port to open more fully while restricting the hot water inlet port.
  • If the mixed outlet temperature drops, the thermostat contracts, moving the seat assembly to allow the hot water inlet port to open more fully while restricting the cold water inlet port.
  • In both cases, the temperature of the mixed outlet water is automatically and continuously maintained at the preset temperature within the valve's tolerances.
  • When the cold or hot water supply fails, the seat assembly moves to an extreme position, cutting off the hot or cold inlet water port.
  • A mechanical adjustment allows you to select the desired outlet water temperature within the valve's range.

Standards and Approvals

  • ASSE 1016
  • ASSE 1017
  • ASSE 1069
  • ASSE 1070

Frequently Asked Questions

How do you adjust a thermostatic mixing valve?

  • Remove the plastic cap on top of the valve and adjust with a close-fitting spanner to adjust the temperature supply.
  • To raise the temperature, turn the knob anti-clockwise.
  • To reduce the temperature, turn the knob clockwise.

Do I need a thermostatic mixing valve?

To control water temperature at the delivery point and prevent scalding, you must install thermostatic mixing valves on your water heater. This will enable you to raise the heater temperature, killing possible bacteria.

How do you adjust the wattage on a water mixing valve?

  • Loosen the locking cap screw with a hex wrench to adjust the valve setting.
  • To adjust the temperature, lift the cap by 1/4 inches.
  • Turn counterclockwise to raise the temperature.
  • To reduce the temperature, turn the knob clockwise.

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