- Mar 14, 2005
Sadly just because you have not heard of a regulation does not mean it does not exist. Generally you rely on the system installer to ensure the system complies with regulations of the time, and because of that most users are ignorant of the details of the installation and supply regulations.Bulkhead regulators are designed to handle propane or butane - some automatically change from one cylinder to the other with no interlock to prevent both being connected at the same time via use of the appropriate pigtail.
Whilst I'm not advocating it as a good idea, I've not heard of any such ban.
With the change in the early 2000's of the UK LPG supply pressure from butane 28mB and Propane 37bB to the common 30mB for both, it enabled single pressure bulkhead regulators to be fitted caravans. Change over varieties became available later, and even these should isolate the cylinder not being used so it can be changed without having to compromise the supply from the cylinder being used.