Hydraulic Flow Control New DELAVAN. Pressure compensated flow control to vary the speed of hydraulic motors. Rotate lever to vary flow to controlled flow port. Can be locked in place. No pressure relief. Plug excess flow port for use with variable flow piston pump systems.
Is valve 9-12219 a valve that will work on a closed center John Deere hydraulic system?
A: Yes, it is.
Date Submitted: 09/27/2018
Say I have a pump supplying 2000 psi(with a relief valve) to a single acting cylinder that is lifting something. If I were to "T" this valve to the cylinder and route the flow back to the reservoir would this valve let me slowly bleed off the flow to the cylinder letting it retract slowly while the pump is still providing pressure?
A: Please contact our Product Support department to discuss your application.
Date Submitted: 08/16/2018
Could I control flow on a hyd. motor both forward and reverse with this valve ? Thank you.
A: No. This valve does not allow for controlled reverse flow.
Date Submitted: 01/17/2018
Does this valve have three ports? In, controlled flow, and return to tank? Can the return to tank be used to power another application? Are all three ports 1/2" npt? Thanks.
A: This valve does have three ports; In, Controlled Flow, and Excess. Any excess flow could be used to power another application, keeping in mind that if all the flow is shunted to the Controlled Flow port, any additional function will not operate. Additionally, neither flow path has any provision for pressure relief and this must be considered during planning. All ports are 1/2" NPT.