first off you need to find another lds...... they should know by looking at that tank that it is rated at 3500psi. the only valve availabl3 for it is the one in the tank that is because the thread size is different in the neck. your best bet convert your reg to a 300 din not a 230. it must be 3000 because that valve is 300. Also if your reg is converted to 300 you can use it on 230 and 200 dinn. Remember with din you can go backwards but not forward. The next thing is when converting your reg you have to be sure it will handle the 3500psi. some reg do not have din conversions greater than 230.