Asco Valve vs. Goyen Controls - A Practical Review

I have replace a lot of solenoids and diapgragm valves in my day.  A LOT.

Being on top of a silo 100 feet in the air on a windy day to find our why you have no plant air is no fun.  On a solenoid many times you find out the stupid little red plastic piece on the ASCO solenoid has popped off.  This is commonly refered to as the "Red Hat".    This is the most common failure.  The plastic piece becomes brittle an snaps off, or breaks off.  When this occurs the coil slides off of the stem and burns the coil.  It is expensive to replace these little buggers, and id I mention that it is cold (or hot) outside.
What a stupid design. 
I can see building a valve and that may have some problems, but to keep building the same valve year after year is stupid.

For three reasons I have begun recommending Goyen Valves.   a) they are a lower cost.  b) they do not fail very often.  c) the new spring-less design is one less thing to handle when you are hanging over the rail on a dust collector to change a valve.

However, if you like the extreme weather, and the views of the city from a silo, then by all means keep using the ASCO valve.