TGV307 is a non- electric multifunctional combination gas control with mechanical modulation and on-off therm ostat for tem perature re gulati on of gas firedheating applianoes, widely used for do mesticspace heaters, water heaters and catering equipments.

Function

TGV307 is a non- electric multifunctional combination gas control with mechanical modulation and on-off therm ostat for tem perature re gulati on of gas firedheating applianoes, widely used for do mesticspace heaters, water heaters and catering equipments.

Technical data

• Main gas connection: G3/8"
• Usage gas: Allgas
• Max gas inlet pressure: 50mbar
• Outletpressure setting range: 3~ 18mbar
• Working temp erature range.0~ 80℃
• Pressure regulator(optional): class C
• Flame supervision device:
   lgnition time: < 10s
   shut- off time: <60s
   life: 10,000
• Manual shut-off device: life: 10, 000

Main characteristics
●Control knob with positions for off, pilotand temp. selection(MS)
●Therm oelectric flame supervision device withre-start int erlock( GM)
●Maximum gas flow adjustment(RQ)
●Press ure re gulator(PR)
●Min (by pass) flow adjustment
●Modulating therm ostat with additional on-off function(TH)
●Pilot outlet withpre-settingdevice of the gas flow(RQ)
●Inlet and pilot fIter(FL )
●Inlet and outlet pressure test points
●lateral or bottom main gas inlet and outlet
●Main gas connectio ns withthre aded pipe or nut andolive 

Working diagram

Dimensions ( mm )

Thermostat regulation specifications

The regulation specifications of the modulating them ostat with on-off function are shown in following drawing and table.

The re qulation ange

a b c 8~33℃ 3 3 2 13~31℃ 2 2 2 13~38℃ 3 3 2 13~43℃ 3 3 3 13~48℃ 4 4 3 21~46℃ 3 3 2 30~100℃ 9 9 5 40~72℃ 5 5 3 40~90℃ 5 5 3 Other ranges are available on reauest

Gas flow 

Gas families Q △P 1st(d=0.45) 3.0m³/h 5m bar 2st(d=0.55) 2.7m³/h 5m bar 3st(d=1.55) 1.6m³/h 5m bar regulated flow Q ( 15℃ 1013 25mbar) as a function of the pressure drop △P between inlet and outlet with knob in position 7 and cold bulb .

Curve No Gas type  Inlet pressure range Nominale Max. Min. 1 H 18 23 15 2 H 20 25 18 L 20 25 18 3 L 25 30 20 regulated flow Q ( 15℃ 1013 25mbar) as a function of the pressure drop △P between inlet and outlet with knob in position 7 and cold bulb .

• Gas Control Valve