{"id":2707,"date":"2024-03-07T16:53:34","date_gmt":"2024-03-07T15:53:34","guid":{"rendered":"https:\/\/www.bf-hydraulik.com\/encyclopedia\/gear-flow-dividers\/"},"modified":"2026-04-15T11:51:50","modified_gmt":"2026-04-15T09:51:50","slug":"gear-flow-dividers","status":"publish","type":"encyclopedia","link":"https:\/\/www.bf-hydraulik.com\/en\/gear-flow-dividers\/","title":{"rendered":"Gear Flow Dividers"},"content":{"rendered":"\t\t
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Gear Flow Dividers<\/h1>

The primary function of a gear flow divider<\/a> is to divide the flow into two partial flows. This division occurs independently of the operating pressure at the two working ports. Gear flow dividers<\/a>, also referred to as flow divider<\/a> valves, are self-regulating devices. In addition to dividing the volume flow, gear flow dividers<\/a> are capable of maintaining equal partial flows and combining them into a total flow. <\/p>

Fundamentals of Gear Flow Dividers<\/h2>

The essential components of a conventional gear flow divider<\/a> are two or more gear modular elements, also called sections, and a shaft. This internal shaft mechanically connects the individual sections to each other so that they rotate at the same speed. <\/p>

In contrast to multiple pumps with mechanical input power, the input power in a gear flow divider<\/a> depends on the flow. The flow is represented by an oil flow under a specific pressure, which feeds the modular elements in synchronization. The gear modular elements are in turn connected to the hydraulic supply circuits of the drives. <\/p>

The flow portion consumed by an element is determined solely by its nominal flow rate. As a result, gear flow dividers<\/a> operate without losses and with significantly greater precision. The use of gear flow dividers<\/a> reduces the number of pumps required in the respective hydraulic system<\/a>. Fewer mechanical power take-offs and complex mechanical transmissions are needed, resulting in lower losses. In a gear flow divider<\/a>, the input power at any given time equals the sum of the distributed powers. <\/p>

Applications of Gear Flow Dividers<\/h3>

A common application of a gear flow divider<\/a> is feeding two or more independent hydraulic circuits through a single pump. The pump’s delivery capacity must equal the sum of all powers. Examples of this application include platforms, lifting platforms, lubrication systems, hydraulic jack<\/a>s and bending presses, hydraulic drives on automatic machines, woodworking machines, systems in the food industry, and military installations. <\/p>

Another application is pressure intensifiers. In machine tools or presses with accelerated operation, the respective user requires a significantly higher operating or peak pressure than in the other pressure stages. Instead of redesigning the entire system for a higher pressure, a gear flow divider<\/a> for supply is recommended in this hydraulic system<\/a>. A gear flow divider<\/a> with two elements, in which the outflow of one element is diverted, exhibits a significantly higher pressure in the other element than the pressure in the pump feeding the system. <\/strong><\/p>

Gear Flow Divider Classification<\/h3>

Gear flow dividers<\/a> are classified into different groups according to size.<\/p>

Group 0 gear flow dividers<\/a> feature low flow rates, dimensions, and displacement<\/a>s of 0.24 to 2.28 cm³ per revolution.<\/p>

Gear flow dividers<\/a> with medium flow rates and dimensions as well as displacement<\/a>s of 0.91 to 9.88 cm³ per revolution belong to Group 1.<\/p>

Large Group 2 gear flow dividers<\/a> with high flow rates and dimensions, with displacement<\/a>s of 4.2 to 39.6 cm³ per revolution, are among the largest flow divider<\/a> valves in use.<\/p>

Furthermore, gear flow dividers<\/a> can be supplied with or without stroke phase compensation valves. These valves correct the minor phase deviations that may occur between two or more hydraulic cylinders during each cycle. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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