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02-08-2011, 02:46 PM #1
- Join Date
- Apr 2009
- Port Angeles WA
"Home work" from "Log Splitter Hydraulic Filter, Gauge Questions"
From "Log Splitter Hydraulic Filter, Gauge Questions"
Homework 2: Why would it make sense to have a larger sized line between the control valve port and the capped side port of a DA cylinder??
A "normal" cylinder usually have a rod diameter that is half the cylinder bore diameter. Retracting such cylinder make return flow from capped side 33.3% higher than pump flow (flow into rod side). Always take this in consideration, especially when using, proportionally, larger sized piston rods. Back pressure can fast get substantial.
Also, some control valves have work port cavities larger for the port that is supposed to connect to capped side of cylinder. This Prince valve have larger cavity under the B-port than under the A-port
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