Cat pumps - what's the diff between piston and plunger
 

Both seem to produce the pressures needed for a watermaker - so what's
the difference?

Cat pumps - what's the diff between piston and plunger
 

The difference is really how the plunger/piston seal

a piston is rather like a car piston assembly

the plunger has a static seal/gland

Steve


"Wally" wrote in message
...
Both seem to produce the pressures needed for a watermaker - so what's
the difference?