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Model: YNAA
Pressure reducing on P, pilot choke on T assembly
Capacity:
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Model
YNAALCNAA
Function
Pilot choke
Technical specifications
This assembly consists of pilot-operated, pressure reducing valve which reduces a high primary pressure at the inlet (P port) to a constant reduced pressure downstream. Additionally, the assembly provides speed control via a fully adjustable needle valve from ports A and B to T. This arrangement is also known as pilot choke when used in conjunction with and ISO 03 solenoid directional valve to pilot a larger valve.
- Full reverse flow from reduced pressure (port 1) to inlet (port 2) may cause the main spool to close. If reverse free flow is required in the circuit, consider adding a separate check valve to the circuit.
- Minimum setting is 75 psi (5 bar) for all spring ranges.
- Pilot operated valves exhibit exceptionally flat pressure/flow characteristics, are very stable and have low hysteresis.
- Pressure at port 3 is directly additive to the valve setting at a 1:1 ratio and should not exceed 3000 psi (210 bar).
- Because needle valves are non-compensating devices, the fixed orifice size will regulate flow through the valve in proportion to the square root of the pressure differential across ports 1 and 2.
- Body TypeSandwich
- InterfaceISO 03
- Capacity10 gpm
- Body FeaturesOn P
- Seal Plate Included (see notes)Yes
- Stack Height1.75 in.
Model CAD Files
Click the link of the file format you want to download.
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- Stack height value in technical data table includes seal retainer plate.
- For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the Included Components tab.
- Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.
Highlights
Technical Tips
Technical Information
- PartDescriptionQuantity
- 500-001-012*O-Ring4
- 700-002*Seal Plate1
- 811-001-006*Pin1
- 850-004-250*Plug1