RE: Aster Safety Valves

[Gary Broeder]

>
>Does anyone know why Aster always uses two safety valves on their engines?  
>
>Don Plasterer 

Don, 

Aster does not always use two safety valves. The Pannier tank and the early 0-6-0 tank 
and the Grasshopper 
have only one. PErhaps there were others but these were close at hand.

GaryB