Norgren Collateral

10 SAFE SYSTEMS Piston rod locks When a pneumatic actuator is exhausted, the piston rod is free to move. This unregulated movement could present a major hazard to safety during an emergency condition on a machine application. Imagine a vertically mounted actuator carrying a heavy machine slide or similar – the actuator will simply drop under the effect of gravity. A piston rod lock, fitted to the actuator during manufacture, is a mechanical locking device holding the piston rod secure during this kind of situation. The lock is "passive" – therefore when an air signal to it is removed, the lock acts automatically. > Provides secure locking of piston rod in any position > Robust, maintenance free design > Available to fit ISO/VDMA, ISO roundline and ISO compact ranges Blocking fittings / pilot check valves As a potential alternative to a mechanical piston rod lock, a function fitting can also be used to hold the actuator position by trapping air inside. This can help to provide a short term pneumatic alternative to a mechanical device – air is compressed gas, and leakage and / or external forces could could influence the actuator position. Two styles are available – a combined flow control and check valve or a simple blocking fitting; composite body or nickel plated brass respectively. > Compact design screws directly into actuator port thread > Easy connection via push in fitting Actuator control devices passive lock 102GA, 124GA blocking fitting Blocking fitting + flow control C01GN, C02GN Model Description Actuator Port Size PIF Tube Size Max. Pressure C01GN0618 Blocking Fitting + Flow Control R1/8 6 mm 10 bar C01GN0628 Blocking Fitting + Flow Control R1/4 6 mm 10 bar C01GN0828 Blocking Fitting + Flow Control R1/4 8 mm 10 bar C01GN0838 Blocking Fitting + Flow Control R3/8 8 mm 10 bar C01GN1038 Blocking Fitting + Flow Control R3/8 10 mm 10 bar C01GN1048 Blocking Fitting + Flow Control R1/2 10 mm 10 bar C01GN1248 Blocking Fitting + Flow Control R1/2 12 mm 10 bar C02GN0618 Blocking Fitting + Flow Control G1/8 6 mm 10 bar C02GN0628 Blocking Fitting + Flow Control G1/4 6 mm 10 bar C02GN0828 Blocking Fitting + Flow Control G1/4 8 mm 10 bar C02GN0838 Blocking Fitting + Flow Control G3/8 8 mm 10 bar C02GN1038 Blocking Fitting + Flow Control G3/8 10 mm 10 bar C02GN1048 Blocking Fitting + Flow Control G1/2 10 mm 10 bar C02GN1248 Blocking Fitting + Flow Control G1/2 12 mm 10 bar Other sizes available contact IMI Precision Engineering for more information Model Description Actuator Port Size PIF Tube/ Thread Size Max. Pressure 102GA0418 Blocking Fitting G1/8 4 mm 10 bar 102GA0618 Blocking Fitting G1/8 6 mm 10 bar 102GA1818 Blocking Fitting G1/8 G1/8 10 bar 102GA0628 Blocking Fitting G1/4 6 mm 10 bar 102GA0828 Blocking Fitting G1/4 8mm 10 bar 102GA2828 Blocking Fitting G1/4 G1/4 10 bar 102GA0838 Blocking Fitting G3/8 8 mm 10 bar 102GA1038 Blocking Fitting G3/8 10 mm 10 bar 102GA3838 Blocking Fitting G3/8 G3/8 10 bar 102GA1248 Blocking Fitting G1/2 12 mm 10 bar 102GA4848 Blocking Fitting G1/2 G1/2 10 bar 124GA0418 Blocking Fitting 1/8 NPTF 1/4" 150 psig 124GA1818 Blocking Fitting 1/8 NPTF 1/8 NPTF 150 psig 124GA0428 Blocking Fitting 1/4 NPTF 1/4" 150 psig 124GA2828 Blocking Fitting 1/4 NPTF 1/4 NPTF 150 psig 124GA0638 Blocking Fitting 3/8 NPTF 3/8" 150 psig 124GA3838 Blocking Fitting 3/8 NPTF 3/8 NPTF 150 psig 124GA0748 Blocking Fitting 1/2 NPTF 1/2" 150 psig 124GA4848 Blocking Fitting 1/2 NPTF 1/2 NPTF 150 psig Other sizes available contact IMI Precision Engineering for more information

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