Flame failure safety valve with Flare thread inlet and outlet 5/8-18UNFOnly suitable for low pressure applications (max BTU rating: 50,000)Suitable for gas grill, heater, fire pit, fireplace if same connectionsSpecifications:600mm thermocouple with M8*1 threaded headBakelite knob OD 38mm, D-shaft 6.1mmOperating Instructions1. Fix the valve to a plate or board on your grill or fire pit with the main screw and flange.2. Connect your inlet and outlet hose on the inlet and outlet side. (Fasten it tightly enough to prevent gas leakage)3. Fasten the M8 thermocouple nut to the end of the valve tightly (Check if your valve's end thread is 8mm before purchasing)4. Connect the thermocouple and end thread well5. Open the gas with the correct size knob and press the valve for about 5-10 seconds until the thermocouple head is sufficiently heated.6. Release your hand and it works correctly If the gas valve turns off again when you release your hand, check if your thermocouple is always heated by the flameIf the thermocouple end is well connected to the valveIf the inlet and outlet side is well connected to the hose you haveColor: yellowMaterial: copperPackage contents:1 x Gas control valveOnly the above package content, other products are not included.Note: Light shooting 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.