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Rock Crawling Forums
General Discussion
Rockwells make your sac swell!
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<blockquote data-quote="wimpykid" data-source="post: 450985" data-attributes="member: 3559"><p>I may be wrong , but I thought the PS pump is supplying pressure at a given flow rate and the orbital valve is what actually determines the speed at which the ram operates. I have a KRC pump(1450psi), 2.5x8 double ended ram, and 5.4orbital that is a little more than 4 turns lock to lock. A little slow at speed but good crawling.</p><p></p><p>With that said, ram and orbital need to be sized together. Most pumps that I have researched are from 1250 to 1600 psi. Orbitals are sized for volume/rev.</p></blockquote><p></p>
[QUOTE="wimpykid, post: 450985, member: 3559"] I may be wrong , but I thought the PS pump is supplying pressure at a given flow rate and the orbital valve is what actually determines the speed at which the ram operates. I have a KRC pump(1450psi), 2.5x8 double ended ram, and 5.4orbital that is a little more than 4 turns lock to lock. A little slow at speed but good crawling. With that said, ram and orbital need to be sized together. Most pumps that I have researched are from 1250 to 1600 psi. Orbitals are sized for volume/rev. [/QUOTE]
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Rockwells make your sac swell!
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