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The UMV500-LF Universal UnderSink Thermostatic Mixing Valve is intended for use in under counter and under sink applications to prevent accidental scalding. The UMV500 Universal model is designed to be used as a three port design (touchless sink) or a four port design (two handle sink) with the addition of the 4 port adaptor (included).The outlet water temperature must be properly adjusted by the installer using a thermometer to measure the outlet temperature at the faucet. A maximum outlet temperature of 110 F (43 C) is recommended.


  • Universal design allows flexibility in adapting to three port or four port applications.
  • Shipped with four port adapter.
  • Shipped with standoffs for easy mounting.
  • Integral check valves in hot and cold inlets.
  • Lockable hand wheel for tamper resistant temperature setting.
  • Lead Free (0.25% max. weighted average lead content)

Product Specifications

UMV Series 3/8 in. Compression
Compression nuts, ferrules and mounting standoffs
Used With
Can work with either 3 port or 4 port sinks
UPC listed; NSF certifications 61 and 372 compliant
Item Type
Approvals, Canadian Standards Association
Pressure Range (psi)
Working Pressure: 20 psi to 125 psi
Pressure Range (kPa)
Working Pressure: 138 kPa to 861 kPa
Minimum flow rate (gpm)
0.52 gpm
Maximum flow rate (gpm)
4.3 gpm
Connection Type
Pipe Size (inch)
3/8 in.
Pipe Size (DN)
Fluid Temperature (C)
Mixed Outlet: 27 C to 49 C; Cold Inlet: 4 C to 27 C; Hot Inlet: 49 C to 82 C
Fluid Temperature (F)
Mixed Outlet: 80 F to 120 F; Cold Inlet: 39 F to 80 F; Hot Inlet: 120 F to 180 F
Capacity (Cv)
0.36 Cv
Capacity (Kv)
0.31 Kv
Valve Type
Mixing Valves
Minimum flow rate (lpm)
2.0 lpm
Approvals, ASSE
1070 Listed
Approvals, IAPMO
Maximum flow rate (m3/h)
0.98 m3/h
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