My intent is to build a barrel flushing system for cutting rifle chambers. Yeah, another one of those threads! lol
Specific question is what does anyone here think about running a hydraulic pressure pump (small ones used for small lifts etc) at a lower RPM than nominally used for typical hydraulic pressure applications.
I see a lot of threads talking about using carbonator pumps. They're still kinda pricey, upwards of $300 or more. A small hydraulic pump can be found pretty cheap new (< $100). Used even cheaper.
Something like this https://www.ebay.com/itm/Hydraulic-...ium-NEW-/232907898475?&_trksid=p2056016.l4276
Run off a 1725 rpm motor with pulleys to spin the pump at it's min rated RPM (700) and pushing dark cutting oil. Flow requirements for chamber cutting is not high. 1-2 gpm should be enough, I think. I don't know if I can get away with a 1/2 horse motor, I'm thinking I might with it geared down like that. The hp ratings for full pressure applications are much higher but I'm hoping this would scale down accordingly for the pressures I want to run at.
Assuming it would work, one concern is over pressure when the reamer pilot engages the rifling, restricting flow and blowing my lines or rotary coupling or something else. I want to keep the whole system to under 150psi-200psi max. My target is 60-100 nominal when chamber cutting. Even at minimum rpm a pump like the above is able to produce 1000psi. I don't know if I can control that with just a manual bypass valve or if I'd need a real pressure regulator valve (expensive!). A manual bypass valve might work, if I am careful to ease into it.? Maybe? I'm thinking pressure should stay fairly consistent once the pilot is in the rifling.
Any thoughts? Bad idea?
I'm in the process of researching the whole system which will involve pump & motor, filtration (10-micron), rotary coupling, air purge, and of course sundry plumbing/valves/gauges/etc. I'm hoping to keep this all to $500. We'll see.
Thanks! Dave
Specific question is what does anyone here think about running a hydraulic pressure pump (small ones used for small lifts etc) at a lower RPM than nominally used for typical hydraulic pressure applications.
I see a lot of threads talking about using carbonator pumps. They're still kinda pricey, upwards of $300 or more. A small hydraulic pump can be found pretty cheap new (< $100). Used even cheaper.
Something like this https://www.ebay.com/itm/Hydraulic-...ium-NEW-/232907898475?&_trksid=p2056016.l4276
Run off a 1725 rpm motor with pulleys to spin the pump at it's min rated RPM (700) and pushing dark cutting oil. Flow requirements for chamber cutting is not high. 1-2 gpm should be enough, I think. I don't know if I can get away with a 1/2 horse motor, I'm thinking I might with it geared down like that. The hp ratings for full pressure applications are much higher but I'm hoping this would scale down accordingly for the pressures I want to run at.
Assuming it would work, one concern is over pressure when the reamer pilot engages the rifling, restricting flow and blowing my lines or rotary coupling or something else. I want to keep the whole system to under 150psi-200psi max. My target is 60-100 nominal when chamber cutting. Even at minimum rpm a pump like the above is able to produce 1000psi. I don't know if I can control that with just a manual bypass valve or if I'd need a real pressure regulator valve (expensive!). A manual bypass valve might work, if I am careful to ease into it.? Maybe? I'm thinking pressure should stay fairly consistent once the pilot is in the rifling.
Any thoughts? Bad idea?
I'm in the process of researching the whole system which will involve pump & motor, filtration (10-micron), rotary coupling, air purge, and of course sundry plumbing/valves/gauges/etc. I'm hoping to keep this all to $500. We'll see.
Thanks! Dave