Installation, Operation and Maintenance Manual
MAN 608 Rev. 5
December 2020
Operation and Use
19
Section 3: Operation and Use
3.3.2
Remote Control Operations
Biffi has the ability to apply advanced engineering technology to the design and
manufacture of hydraulic controls and accessories.
The experience and the knowledge acquired in the actuator industry allow Biffi to meet
with the highest requirements for control modes and operating conditions by correct
selection of schematics, components, materials and protection treatment.
The actuator service can be ON-OFF or Modulating. Actuator control can be local or remote
by electric, or hydraulic signals.
The control system can include devices for automatic operation or stay put in case of
emergency conditions (electric or hydraulic supply failure, high temperature, low or high
pipeline pressure etc.).
The control systems have where is possible a "manifold design": the components are
connected by a flange to the manifold or assembled into the cavities machined into the
manifold. This allows to have a very "compact" unit to reduce the number of connections
by fittings and pipes and then to make the assembly and disassembly of each component
easier, and to minimise the risk of oil leakage also in case the system undergoes
strong vibrations. Control systems can be supplied as panel mount or enclosed into a
weatherproof cabinet.
Control systems can be supplied separate or assembled onto the actuator. The actuator
housing has dedicated supports for the mounting of control systems and accessories.
Figure 16
OLGAS with hydraulic control system
