5 " Bore cylinder with a 2.5" shaft on return stroke a 28 GPM pump will push more than 28 GPM of fluid out the return port of cylinder. A 30 GPM dump valve will take up to 30 GPM away from Hydraulic control valve less load on main valve.
How to plum a hydraulic dump valve.
Dump valve number 1-2-3 on block.
Port 3 Hydraulic hose shaft end of cylinder.
Port 2 Hydraulic hose back to hydraulic tank.
Port 1 Hydraulic hose to pressure end of hydraulic cylinder.

Horizontal Log Splitter with Dump Valve
Shown with all the options hose & fittings and LS 3000 2 Mounter on Vertical Log Splitter
Price each 30 GPM $ 219.95
Price each 65 GPM $ 319.95

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