Usage Tips:Flame failure valve with inlet and outlet with Flare thread 5/8-18UNFOnly suitable for Low pressure application (max BTU rating: 50000)Suitable for Gas grill, heater, fire pit, fireplace if same connectionsSpecifications:600mm thermocouple with M8*1 threaded headBakelite knob OD 38mm, D shaft 6.1mmOperation Instructions1. Fix the valve on a plate or board of your grill or fire pit by the head screw and flange.2. Connect your inlet and outlet hose on inlet and outlet side. (fix it tightly enough in case of gas leakage)3. Fix the thermocouple nut M8 on the valve end tightly (Check if your valve end thread if 8mm before you buy)4. Connect thermocouple and end thread well5. Open gas by correct size knob and push your valve around 5-10s till the thermocouple head is heated enough.6. Release your hand and it work properly If when you release hand, gas valve shut off again, please checkIf your thermocouple is always be heated on flameIf the thermocouple end is well connected with valveIf the inlet and outlet side well connect with hose you haveColour: yellowMaterial: copperPackage Contents:1 x Gas Control ValveOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.