Z
ziggy
Folks,I feel really dumb asking this question ... but here goes:Just bought a load of new radiator valves and lockshields to replace the old valves on my old system, and I cannot work out how the supplied tails work.My old valves are 3/4" BSP and the tails are designed so that the nut which connects to the valve is captive so it is a simple matter of installing the tail into the radiator and then tightening the nut onto the valve.The new valves just have 15mm compression connections on them (that would accept 15mm pipe with olives) and the supplied tail has a 1/2" BSP thread on one end (that goes into the radiator body) and a short length of chrome pipe on the other end. The chrome pipe end gladly accepts an olive and slots into the compression connection on the valve, but when I hand-tighten the compression joint it does not "grip" the chrome pipe whatsoever ... it just spins around and can be easily slid out of the compression joint altogether without even removing the nut!I am sure I am missing something glaringly obvious here ... so please be gentle with me!I haven't tried tightening up the compression joint yet with a wrench (only tried it hand tight) as I don't want to go at it with brute force if I am barking up the wrong tree!Any help would be much appreciated.RegardsZiggy