Flow Dividers

Flow dividers split a single flow into two or more proportional streams, maintaining a fixed ratio regardless of downstream pressure differences. They are used for cylinder synchronization and equal distribution of hydraulic power.

Types of Flow Dividers

• Gear type: Most common, uses meshed gears. Accuracy 3-5%. Robust.
• Spool type: Uses balanced spools. Accuracy 1-3%. More sensitive.
• Rotary type: Positive displacement. Accuracy 0.5-2%. Best precision.

Split Ratios

Standard ratios: 50/50, 60/40, 67/33, 75/25

Accuracy degrades with:

• Large pressure differential between outlets
• Flow rates outside rated range
• High or low viscosity

Intensification

When one outlet is blocked, pressure at that port increases:

P_blocked = P_inlet x (Sections / Blocked Sections)

For a 50/50 divider: P_blocked = 2 x P_inlet (100% intensification)

Sizing Guidelines

• Size for 80% of max rated flow for best accuracy
• Limit pressure differential to 50% of inlet pressure
• Include relief valves for blocked outlet protection