80% fill stop valve ( Valve Fitment 3 )
This is the 3rd valve to be fitted in this order.
When fitting the 80% shut off valve into the tank you need to make sure the thread in the tank is clean.
On the brass tanks valves with a thread there is normally a blue sealant paste which has been applied at the factory. We still recommend you use a liquid PTFE paste as an extra part when fitting the valve ( Added to the blue on the valve ) as this will add sealing the valve in the tank plus it also acts a lubricant to help install it.
This valve must be fitted so the float can drop perfectly vertical inside the tank so when you tighten the valve it does not get damaged by the other items in the tank. This means you must have the valve plate facing upwards ( at 12 o clock ) and it must be horizontal so the valves drop down inside.
When assembling the fill elbow into the 80% shut off valve you need to first mount the black airbox to the tank. Once you have fitted the airbox then fit the elbow using PTFE sealant and then wind the elbow into the valve no more than 4 turns ( making sure the elbow faces out of the right hand side of the GAS IT airbox )
Please read and follow the attached manufactures instructions for the required torque setting and for correct fitment of the valve - See attached document.
Make sure you have the the correct valve size and angle before fitting - if you have a 200 mm diameter tank this valve should have stamped 200 - 105, if you have a 230 diameter tank this valve should have 230 - 105 stamped on the valve and so forth. If they are not correct then do not attemp fitting until you have the correct valves
We find that for the installation of the 3 valves ( 1, 2 & 3 ) into the tank its self we do 5 complete turns and then the extra turn that might be needed to point the valve in the right direction as per the picture above
If you are unsure please contact GAS IT technical support before proceeding further as we can not be held responsible for any damage or incorrect functionality of the valves when you have fitted them in the tank.
Once all valves are fitted, please carry out a leak check using air, then drain the air and then carry out a further leak check with LPG vapour - using certified Leak detection spray on all the joints you have assembled. Do not fill with liquid LPG until you are satisfied the tank is LPG vapour tight first and then only fill using no more than 2 ltrs of Liquid LPG to allow further leak checking. Then continue to follow the install set up instructions here on the on the GAS IT knowledgebase here