Machine Design

Dual-Power Brake Valve

Mico 446 steering-assist, dual-power brake valve from Mico Inc., N. Mankato, Minn., features a closed-center design. When matched with an accumulator, the valve supplies normal and emergency power-off braking, modulating output pressures up to 2,000 psi. Steering-assist is provided with one pedal and full-power braking with both pedals, producing equally balanced brake pressures. The compact valves can be used in a variety of hydraulic and dual-pedal systems. The possible mounting configurations let the brake, pressure, and tank ports face up or down. A brake-light switch port for monitoring individual or balanced brake pressures and auxiliary left and right-side accumulator pressure switch ports are also available.

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