Just for fun

[david.findlay]

Any one want to hazard a guess as to what this is?
I placed an 8" shifter in the picture to give a size reference
Not really difficult I know but you don't often see them this size....

[Grizzly]

Hi David.
An interesting Photo you have there!
It looks like as you say a Large ?
Non Return Valve components maybe?
I have seen check valves of a similar design but never that big!
Grizzly

[Brian_UK]

Or a really huge solenoid valve?

[PaulZ]

Hi David
Looks like the seat out of a stop / check valve, I would guess the valve is about 400 mm and the seat material looks like white metal.
Paul

[david.findlay]

20150113_113512.jpg
Well done gentlemen it is indeed a suction check valve or as Frick call it a 12" multivalve assembly
It sits within this housing, the seat is actually just an "O" ring set into the sliding button
Had to replace because it was binding on the shaft & allowing the compressor to run backward on shutdown & screws don't like that!

[RANGER1]

Interesting a Fric in Scotland, you would have thought a Howden for sure!
Globalization I guess.