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Item 18 Of 18
3/4 x 3/4 in. NPT Millivolt Gas Valve


750mV Standard Opening Gas Valve. 3/4 x 3/4 with 1/2" side outlets. Set 3.5” WC.

This product is available in the US only.

  • Product Info
  • Literature
  • Accessories & Replacement Parts


These gas controls combine a Lite-Rite manual gas cock, safety shutoff Pilotstat assembly, millivoltage automatic valve operator, and optional gas pressure regulator. They require the use of a 750 mV Powerpile generator (thermopile). The generator, heated by the pilot burner flame, provides the electrical energy to operate the combination gas control. A millivoltage thermostat with suitable accessory controls completes the automatic control system for the heating appliance.


  • Include pilot flow adjustment screw.
  • Easy to install, adjust and service; all adjustments and connections are accessible from top of control.
  • Add separate energy cutoff (ECO) where codes call for dual safety shutoff.
  • Complete safety shutoff on pilot flame failure.
  • LITE-RITE (OFF-PILOT-ON) lighting sequence.

Product Specifications

Self-powered automatic control. Use with 750 mV pilot generator.
Dimensions (in.)
4 3/4 in. high x 4 1/16 in. wide x 3 3/16 in. deep
Dimensions (mm)
121 mm high x 103 mm wide x 81 mm deep
Two Bushings: 3/4" NPT to 1/2" NPT and 1/2" NPT to 3/8" NPT; Conversion Kit; Remote Rod Adaptor Knob
Item Type
0 to 90 degrees in any direction from the upright position of the gas control knob, including vertically.
Approvals, Underwriters Laboratories Inc.
UL Component Recognized MCCZ2.MH5323
Approvals, Canadian Standards Association
CSA International: 112395
Tradeline Value
Electrical Connections
Combination screw and 1/4 in. male quick connects.
750 mV
Operating Temperature Range (F)
-40F to 175 F
Operating Temperature Range (C)
-40 C to +79 C
Body Pattern
Straight-through, multi-tapped with 1/2 in. right and left outlets plugged
Opening Characteristics
Standard Opening
Pressure Ratings (psi)
1/2 psi
Pressure Ratings (kPa)
3.5 kPa
Inlet/Outlet Size (in.)
3/4 in. NPT x 3/4 in. NPT with 1/2 in. NPT side outlets
Pilot Gas Outlet
Compression fitting for 1/4 in. OD tubing.
Pressure Tapping
Outlet pressure tap: 1/8 in. NPT with plug
Type of Fuel
Natural (LP with included conversion kit)
Capacity (kBtuh)
At 1 in. wc p.d.-- 335,000 BTU/hr: 34,000 BTU/hr minimum, 425,000 BTU/hr maximum
Pressure Regulator
Pressure Regulator Setpoint (in. wc)
3.5 in. WC
Pressure Regulator Setpoint (kPa)
0.87 kPa
Ignition Type
Standing Pilot



Envelop with Reducer bushing (1/2 3/8 in. npt)


One 3/4 x 1/2 in. reducer bushings


Two 3/4 x 1/2 in. reducer bushings


Envelope Assembly


Single Stage LP to Natural Gas Conversion Kit. 3" to 5" adjustment range.


Single Stage Natural to LP Gas Conversion Kit. 8" to 12" adjustment range.


ECO adapter with 1/4" x 0.032" quick-connect terminals for the V800 or the VS820 family