New tail for old Peglers Radiator Valve

[Brad19]

I need to replace a radiator, one of the valves is a Peglers B.S 2767 the tail in the old Rad is proving very difficult to remove can you still get tails for these valves? As replacing the valve will involve a lot of work I have a Wicks 15mm x 1/2" valve but the treads appear to be different.

 

[Best]

I need to replace a radiator, one of the valves is a Peglers B.S 2767 the tail in the old Rad is proving very difficult to remove can you still get tails for these valves? As replacing the valve will involve a lot of work I have a Wicks 15mm x 1/2" valve but the treads appear to be different.

Hi Brad,
Is it large tail valve with 3/4” nut?
A photo would be good.
It should come out if you have proper ratchet radiator valve tool.