PORTABLE VALVE ACTUATORS
GREEN POWER LINE SERIES
F.lli Scapin Srl - Viale dell’Artigianato, 67 - 35013 Cittadella (PD) - Italy
Ph. +39 049 5970596 - Fax +39 049 9409952 - info@flliscapin.com - www.flliscapin.com
Usage of the APB/APS Portable Valve Actuators on gates/valves
In order to transfer the ‘rotation’ from the Portable Actuator to a bevel gear installed on a gate/valve, it is
necessary to install a Bushing (photo 1) on the actuator’s spindle using the four screws supplied.
After that, in consideration of the fact that the APB/APS devices produce a huge Nm output force, it is
also necessary to install an Anti-Rotation Flange (photo 2) on the bevel gear of the gate/valve. This
avoids the ‘snatch’ rotation of the APB/APS tool while in operation and prevents any potential injuries to
the operator.
The safety system is completed by the Anti-Rotation pin and its Safety Split that allow to keep the
actuator ‘locked in position’ while operating. This is a safety mechanism required by law. The
manufacturing company is not responsible for any damage to people (o properties) resulting from its
failure or incorrect use.
Therefore, once the correct bushing has been installed on the APB/APS and the proper A-R flange on
the bevel gear, all that’s left to do is to connect the bushing to the reducer’s shaft, make sure that the A-R
pin enters the A-R flange, then close it using its safety split. Now, you are 100% ready to operate.
Photo 3 shows this connection phase (this procedure is the same for both sluice gates/penstocks/valves)
1. Bushings (to mount on the APB/APS) 2. A-R Flanges (to mount on the bevel gear) 3. Connection of the APB/APS to the gearbox shaft
About interventions on multiple series of gates/valves
When planning to operate on several gates/valves with bevel gear shafts of different diameters, it is
necessary to standardize them all by installing a series of Adaptors with male square 24x24mm that fits
the ‘standard’ square 24x24mm female bushing on the APB/APS tool.
All the Adaptors (photo 4) have a 24x24mm square male connection and a cylindrical female part of
different sizes. It is therefore necessary to identify in advance which types are necessary, and then
proceed with their installation along with the corresponding anti-rotation flange; after this installation
work, it will be possible to operate on all gates/valves without continuous changes of bushing (photo 5).
However, at this point it will no longer be possible to use the original hand-wheels. So, in order to
perform manual interventions again, it will be necessary to use the Square 24mm Hand Crank, that
combined with the Padlocking Kit allows also to lock the bevel gear on the gate/valve (photo 6) in order
to avoid unauthorized movements.
4. Q24x24 adaptor mounted on the bevel gear 5. Connection of APB/APS to A-RFlange+Q24 adaptor 6. Q24 hand crack + locking system on bevel gear
