probably others as well. Not sure which is for which off by heart but
the ones for the pump are 2 each of:
1 13/16" id x 2" od x 3/32 thick
2" id x 2.25" od x 1/8 thick
Part numbers for those will be easily available on the web.
Recommended check valves are brass units made by Watts and available at
any decent plumbing supply. These are very low restriction, very low pop
off, no leakage, disk valves with female 1/4" ports. Think I paid
around cdn$25. each. I have posted the exact part number in the past so
it is in the archives. I don't have the part number handy. If you use
MAM's plastic reservoir and these check valves, then I recommend
removing the remaining biggest restriction in the system so that the
pump does not cavitate when pumping fast. That is the tank exit. Cut off
the plastic nipple and tap the tank for a 1/4" NPT fitting to give 3 to
4 times the exit area.
Ken
On 16/01/2012 11:57 AM, Drew Dalgleish wrote:
Hi Nig Haven't had to change the o rings yet but the check valves are
a common industrial part. I got replacements at the local hose headquarters.
On 16/01/2012 10:48 AM, N.Smith wrote:Hi All
Anyone changed the o rings in their amphib gear pump and any idea what size
they are ?
Also, anyone got a source for the two check valves located at the pump
inlet/outlet ?
Thanks
Nig
745E
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