MICO Inc.

Hydraulic-Over-Air Relay Valves

These hydraulic-over-air relay valves are designed to convert hydraulic modulated input pressure to a proportional output air pressure.

  • Single input design provides one hydraulic pilot port to control modulated air braking pressure
  • Dual input ports can be set up for different pressure ratios
  • Tandem input provides redundancy with two independent pilot pressure ports enabling hydraulic pressure to be applied to either port while keeping pressure ratio the same
  • Accommodates max air pressure of 150 psi and max hydraulic pressure of 2,000 psi
  • Operate from a 3:1 to 21:1 hydraulic-to-air-pressure ratio

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