Flow divider valve assembly
Symbols
Port Headings and Sizes [ + ]
Modifiers | Ports |
QMX, /10, /11 | All Ports: 1" BSPP; |
Cartridge Technical Features [ + ]
Flow dividers are sliding-spool, pressure-compensated devices used to split oil flow to two different branches of a circuit in a designated ratio. These valves are suitable for applications that use the following: unidirectional hydraulic motors, hydraulic cylinders where flow division in one direction only is required, and multiple circuits that are serviced from one pump supply.
- All flow divider and divider/combiner cartridges are physically interchangeable (i.e. same flow path, same cavity for a given frame size).
- Operating characteristics cause the leg of the circuit with the greatest load to receive the higher percentage of flow in dividing mode. If a rigid mechanism is used to tie actuators together, the lead actuator may pull the lagging actuator and cause it to cavitate.
- In applications involving rigid mechanisms between multiple actuators, operating inaccuracy will cause the eventual lock-up of the system. If the mechanical structure is not designed to allow for the operating inaccuracy inherent in the valve, damage may occur.
- In motor circuits, rigid frames or mechanisms that tie motors together, and/or complete mechanical synchronized motion of the output shaft of the motors, either by wheels to the pavement or sprockets to conveyors, will contribute to cavitation, lock-up and/or pressure intensification.
- Variations in speed and lock-up can be attributed to differences in motor displacement, motor leakage, wheel diameter variance and friction of wheels on the driving surface.
- This valve is a divider only; any attempt to flow backwards through the valve is not advised.
- Dividers with unequal ratios have the higher flow at port 4.
- Below the minimum flow rating there is not enough flow for the valve to modulate. It is effectively a tee. If flow starts at zero and rises, there will be no dividing control until the flow reaches the minimum rating.
- Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
Cartridge Technical Data [ + ]
Note: Data may vary by configuration. See CONFIGURATION section.
Cavity | T-34A |
Series | 4 |
Capacity | 12 - 60 gpm45 - 240 L/min. |
Maximum Operating Pressure | 5000 psi350 bar |
Divisional Accuracy at Minimum Input Flow | ±6.5%±6.5% |
Divisional Accuracy at Max Input Flow | ±3.5%±3.5% |
Pressure Drop at Minimum Rated Input Flow | 30 psi2 bar |
Pressure Drop at Maximum Rated Input Flow | 250 psi18 bar |
Rated Input Flow with 50/50 Split | 12 - 60 gpm45 - 240 L/min. |
Rated Input Flow with 40/60 Split | 10 - 50 gpm38 - 200 L/min. |
Rated Input Flow with 33/67 Split | 9 - 45 gpm36 - 180 L/min. |
Valve Hex Size | 1 5/8 in.41,3 mm |
Valve Installation Torque | 350 - 375 lbf ft474 - 508 Nm |
Model Weight | 2.80 lb1,30 kg |
Seal kit - Cartridge | Buna: 990034007 |
Seal kit - Cartridge | Polyurethane: 990034002 |
Seal kit - Cartridge | Viton: 990034006 |
Manifold Technical Data [ + ]
Body Type | Line mountLine mount |
Interface | NoneNone |
Body Features | Ninety degreeNinety degree |
Mounting Hole Diameter | .42 in.10,7 mm |
Mounting Hole Depth | ThroughThrough |
Mounting Hole Quantity | 22 |
Open Cavities | 11 |
Cavity | T-34A |
Port Size | 1" BSPP1" BSPP |
CAD Files [ + ]
Symbol File Formats
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CAD File Formats
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Notes [ + ]
- 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.
Additional Resources [ + ]
Highlights
- Sun Cartridges with EPDM Seals
- Sun Expands Corrosion-Resistant Solutions
- QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool
- Standard Line Mount Manifolds for High Flow Valves
- Putting Sun at the heart of hydraulic regenerative braking systems
- Flow Divider and Flow Divider/Combiner Technical Tips
- Sun's New FLeX Series Solenoid Valves & Coils
- Sun Offers Zinc-Nickel Plating for Corrosion Resistance
Technical Tips
- Manufacturing Sun Cartridge Cavities (522.27 KB)
Technical Information
- Cartridges: Materials of Construction
- Fluid Recommendations: Oil Viscosity, Cleanliness & Temperature
- Sun's Floating Style Screw-In Cartridge (1.06 MB)
- Manifolds: Materials of Construction
- Units of Measure, Settings, and Conversions
- Sun Model Code Explanation; 999-901-334 (343.9 KB)
- Performance Data
- Custom Integrated Packages from Sun
- Cavity Information (S-171) and Tooling
- QuickDesign & SunDesign: Sun's 3- & 5-Axis Solutions
- Removing Valves from Ductile Manifolds (73.96 KB)