Check Valve Assembly0 pages

Product Bulletin

Check Valve Assembly

DESCRIPTION

This MICO Check Valve Assembly is a compact, selfcontained unit that includes a check valve and an inverted
shuttle valve. It can be used in full power brake systems
that have the requirement to store energy in two separate accumulator circuits. Potential applications are split
systems with a pressure compensated pump or electrohydraulic charging controlled by a pressure transducer at the
switch port.
The inverted shuttle valve of the check valve assembly
isolates the higher pressure of the two accumulator circuits
and directs the lower of the two to the switch port. A check
valve prevents pressure at the switch port from leaking
back to the inlet port. Pressure to the accumulators is
supplied at the inlet port.

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There are several key advantages to using this check valve
assembly that will help to reduce your costs in a system of
this type.

Accumulator
Ports

BENEFITS
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Reduces number of system components
Reduces plumbing and mounting hardware
Reduces potential leak points
Reduces installation time
Isolates potential system failure points

Switch
Port

FEATURES
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Supplies fluid for two separate accumulator circuits
Isolates pressure between two accumulator ports
Directs lower pressure at the accumulator port to switch
port - (contact MICO for available pressure switches)
Compact size
Low leakage
High flow capacity
High operating pressure

SPECIFICATIONS

Inlet
Port

Check valve leakage...................................................................... 0.25 cc/min at 3500 PSI (240 bar) maximum
Recommended maximum flow.............................................................................................. 11.0 GPM (40 LPM)
Available check valve cracking pressures............................ 10 PSI (0.7 bar), 50 PSI (3.4 bar), 80 PSI (5.5 bar)
Maximum pressure drop (inlet port to accumulator ports).............. 200 PSID at 10.6 GPM (13.8 bar at 40 LPM)
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14 cS oil viscosity
Operating pressure................................................................................................ 3625 PSI (250 bar) maximum
System filtration.................................................................................................... 10 micron or better is required