SM-P00077-A/3
1. PRODUCT OVERVIEW
27
2020-04-15
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Manifold operation
The main and pilot exhaust air are collected in the manifold base and discharged from the exhaust port.
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Malfunction prevention
PR check valves are provided as a standard.
PR check valves prevent malfunction of the solenoid valve itself caused by pilot back pressure.
In addition, gaskets equipped with exhaust malfunction prevention valves can be selected as an option.
This optional gasket prevents malfunctions in a single-acting cylinder or a double-acting cylinder
connected to ABR connection valve due to the flow of back pressure caused by actuation of other
cylinders.
Note that this option cannot be selected for valves with all ports closed and PAB connection valves since
there is no back pressure flowing.
Exhaust malfunction prevention valves are check valves. Do not directly operate the cylinder
rod under no pressure, as it causes the check valve to open and prevent the cylinder rod from
moving.
<4G R Series pneumatic pressure system>
• Malfunction prevention for a single-acting cylinder
• PR check valve and exhaust malfunction prevention valve
Exhaust malfunction
prevention valve
Exhaust
pressure
Exhaust
pressure
PR check valve
Exhaust malfunction
prevention valve