It is intended specifically forWilesco steam engine models manufactured before 1990, which are equipped with an M6x1 thread. M6x1 thread for secure installation on compatible engines. (M6x1 thread).
M6x1 Live Steam Safety Valve Brass 15PSI Adjustable Valve
M6x1 Live Steam Safety Valve Brass for Wilesco Models, 15 PSI Rated
M6x1 Live Steam Safety Valve Brass for Wilesco Models Before 1990, 15 PSI
1 Pcs M6 X 1 Live Steam Safety Valve Brass
Brass Steam Safety Valve M8x0.75 Adjustable 60 PSI for Live Steam Engine
M8x0.75 Brass Steam Safety Valve – Adjustable 60PSI for Live Steam