Valves

[mamad]

Greeting All

I am looking for some delivery valves for an old British(I think!) compressor that is used for starting two M.T.U marine engine in a Dutch tugboat .
I donot know its name(its name plate is stolen!) and I also havenot any P/N for them!

I attached a picture of the valves and I hope be useful to recognize them?

http://listerengine.com/coppermine/displayimage.php?album=lastup&cat=0&pos=0

Please,let me know if could anyone help me for finding this valves?!

Thank you for any help!

All the best

Mamad