Rotary Flow Dividers, Hydraulic Flow Divider
GC and D Series Rotary Gear Flow Dividers
Field-proven Concentric Rotary Gear Flow Dividers are providing efficient, reliable service for a wide variety of applications in agricultural, materials handling, and construction equipment. These hydraulic flow dividers provide many useful functions from a single pump source:
- Synchronized operation of multiple cylinders or fluid motor
- Proportional division of pump output among several circ
- Intensified pressure when pressure higher than pump capacity is needed.
WHY ROTARY GEAR FLOW DIVIDERS INSTEAD OF SPOOL TYPE DIVIDERS?
Connected within the hydraulic circuit, rotary gear flow dividers operate automatically and only when needed. They require no maintenance.
In a rotary gear divider, horsepower-in is equal to horsepower-out with very small efficiency losses. Consequently, it does not generate heat. Since the efficiency of the unit is a function of the pressure drop across the section, efficiencies approaching 98 percent are not uncommon. This enhances the overall system effectiveness. Spool type dividers require a significant pressure drop just to operate. Heat is designed in when spool type dividers are incorporated in an application. Much care has to be taken to accommodate the inherent inefficiencies of spool type dividers when sizing them for an application.
Rotary gear flow dividers are also more tolerant of contamination and more rugged than spool type flow dividers. Spool type dividers can be accurate and exhibit little internal leakage but their cost is generally as much as 25% greater than comparable rotary gear dividers.
DIFFERENTIAL RELIEF VALVES
Our modular design allows us to add differential relief valves in each section of our flow dividers. These valves are not system relief valves. They are commonly used in applications where cylinders must be synchronized. They also serve to protect the flow divider against excessive differential pressure in the divider which could be caused by actuators becoming stalled or restricted.
APPLICATION OF A ROTARY GEAR FLOW DIVIDER IN A CYLINDER CIRCUIT
Rotary Gear Flow Dividers are designed to synchronize hydraulic cylinders (bring them to equal stroke length) in one direction only. This needs to be in a direction where the cylinders bottom out (go to the end of their stroke). The synchronizing is accomplished because excess fluid is bled off over the flow divider’s internal relief valves to feed the cylinder that is late getting to the end of it’s stroke. Reversing the direction of the cylinders, the Rotary Gear Flow Divider will act as a combiner with the same efficiency as a divider. Please note that a combiner doesn’t regulate cylinder speed, so a flow control is required to limit maximum flow.
GC Series Rotary Gear Flow Dividers
| Order Code |
Gear Face Width |
Displacement | SAE Ports | Minimum Flow/Sec |
Maximum Flow/Sec |
Cont. Diff. Pressure Between Inlet/Outlet |
Maxium Outlet Pressure Any Section |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| In.³ | Cm.³ | Inlet | Outlet | GPM | L/M | GPM | L/M | PSI | BAR | PSI | BAR | ||
| 06 | 3/16 | .097 | 1.59 | 9/16-18 | 9/16-18 | 0.8 | 3.0 | 1.7 | 6.4 | 1800 | 124 | 3500 | 241 |
| 08 | 1/4 | .129 | 2.12 | 3/4-16 | 3/4-16 | 1.2 | 4.5 | 2.5 | 9.5 | ||||
| 12 | 3/8 | .194 | 3.18 | 3/4-16 | 9/16-18 | 1.7 | 6.4 | 4.5 | 13.2 | ||||
| 16 | 1/2 | .258 | 4.24 | 7/8-14 | 7/8-14 | 2.5 | 9.5 | 5.0 | 18.9 | ||||
| 20 | 5/8 | .323 | 5.30 | 7/8-14 | 7/8-14 | 3.0 | 11.4 | 6.0 | 22.7 | ||||
| 24 | 3/4 | .388 | 6.36 | 7/8-14 | 7/8-14 | 3.5 | 13.2 | 7.0 | 26.5 | 1600 | 110 | ||
| 28 | 7/8 | .453 | 7.42 | 7/8-14 | 7/8-14 | 4.0 | 15.1 | 8.0 | 30.3 | 1300 | 90 | ||
| 32 | 1 | .517 | 8.48 | 7/8-14 | 7/8-14 | 4.5 | 17.0 | 9.0 | 34.1 | 1200 | 83 | ||
D Series Rotary Gear Flow Dividers
| Order Code |
Gear Face Width |
Displacement | SAE Ports | Minimum Flow/Sec |
Maximum Flow/Sec |
Continuous Differential Between Sections |
Intermittent Differential Between Sections |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| In.3 | Cm.3 | Inlet | Outlet | GPM | L/M | GPM | L/M | PSI | BAR | PSI | BAR | ||
| 08 | 1/4 | .232 | 3.81 | 7/8-14 | 9/16-18 | 2 | 7.6 | 4 | 15.2 | 3000 | 207 | 3000 | 207 |
| 12 | 3/8 | .349 | 5.71 | 1 5/16-12 | 3/4-16 | 3 | 11.4 | 6 | 22.9 | 2750 | 190 | 3000 | 207 |
| 16 | 1/2 | .465 | 7.62 | 1 5/16-12 | 3/4-16 | 4 | 15.2 | 8 | 30.5 | 2500 | 172 | 3000 | 207 |
| 20 | 5/8 | .581 | 9.52 | 1 5/16-12 | 7/8-14 | 5 | 19.0 | 10 | 38.1 | 2000 | 138 | 2750 | 190 |
| 24 | 3/4 | .697 | 11.43 | 1 5/16-12 | 7/8-14 | 6 | 22.9 | 12 | 45.7 | 1500 | 103 | 2250 | 155 |
| 28 | 7/8 | .813 | 13.33 | 1 5/16-12 | 1 1/16-12 | 7 | 26.7 | 14 | 53.3 | 1200 | 83 | 1750 | 121 |
Frequently Asked Questions?
What is a Rotary Flow Divider?
A Rotary Flow Divider is a hydraulic device that divides hydraulic oil flow equally or proportionally between multiple hydraulic circuits.
Where are Rotary Flow Dividers used?
They are commonly used in construction equipment, agricultural machinery, hydraulic presses, mobile hydraulics, and industrial automation systems.
What are the benefits of Rotary Flow Dividers?
They provide synchronized actuator movement, high efficiency, low maintenance, accurate flow distribution, and improved hydraulic performance.
Can Rotary Flow Dividers combine hydraulic flow?
Yes. Many Rotary Flow Dividers can operate as both flow dividers and flow combiners depending on the hydraulic circuit design.
Our existing customers in these countries :- AL Takamol cement co ltd,Lafarge CEMENT,Pioneer CEMENT. etc For special projects or OEM enquiries kindly get in touch with Tushar Rane-Hydraulic business head directly on sales@avidimpex.net / whatsapp No. 9324338031