A: This is an Open-Center [Tandem Center] subplate, as such, it will work with any Open-Center D03 valve.
Date Submitted: 02/24/2019
do you have any subplates with relief valves?
A: We do not, no.
Date Submitted: 08/20/2018
Why are these blocks sold as open or closed center, Isn't that a function of the valve being attached?
A: Only in the case of the single station subplate, yes. The multiple station subplates require passages in the block specific to the system type for correct fluid flow. For ease of ordering, the single station units are sold system-specific as well.
Date Submitted: 04/11/2018
Ports A, B - can you tell me which is out and which is return?
A: When using item 9-6136, the solenoids are marked operator 'A' and operator 'B'. If operator 'A' is activated, 'P' (pressure) is connected to work port 'A' and work port 'B' is connected to 'T' (tank). When operator 'B' is activated, then 'P' is connected to work port 'B' and work port 'A' is connected to 'T'. The valve being used as an example, when facing the data plate on the valve, was oriented with operator 'A' to the left and operator 'B' to the right. Study the data plate on the valve to confirm orientation.
Date Submitted: 06/26/2017
Does this item support 20 gpm of valve item #9-8878?
A: The ports machined in the block to the valve are .25" diameter. At 20 gpm, there will be a pressure drop of approximately 300 psi across the orifice.
Date Submitted: 03/08/2017
Can you tell me which lines go to the A, B, T, and P port are?
A: P is the pressurized inlet. T is the low-pressure return to tank. A and B are the work ports to an actuator.
Date Submitted: 02/28/2017
WOULD THIS BLOCK IN CONJUNCTION WITH 9-8878 VALVE WORK TO FORWARD AND REVERSE A HYDRAULIC MOTOR WITH OPEN CENTER PUMP? i CAN'T TELL FROM THE PICTURES, DOES IT HAVE 4 PORTS?
A: This is a cylinder type spool, meaning the work ports are blocked in neutral. When the coil is deactivated, the spool will center, flow will cease, and any motor will slam to a stop. Any flywheeling mass attached to the shaft will continue to move if inertia has built up and may break the motor shaft, or excessive pressure may build and rupture a component. If it is a low speed motor with little to no load on the shaft, if may be less of a concern. Otherwise, they will work together. If you access the dimensional diagram, you can see the orientation of all 4 ports.
Date Submitted: 11/21/2016
As I can know if it is open
A: Open center is the characteristic of a positive displacement pump that must have a flow path back to tank at all times, (gear pumps, vane pumps, uncompensated non-adjusting piston pumps, for example). The manufacturer of a piece of equipment should be able to tell you what type of system is operating.
Date Submitted: 08/21/2016
do I need to purchase reducers to attach 1/2 hydraulic hoses to it? if so, part number please.... thanks,
A: A solid straight adapter would be 9-6405-6-8, a swivel-to-tight on the NPT female would be 9-6900-6-8. A 90 degree version of the swivel-to-tight would be 9-6901-6-8.
Date Submitted: 05/21/2016
Does this plate support the 10.5 gpm flow as the valve that mounts to it?
A: Yes the ports are large enough to handle the flow that matches the rating of the valve .