14 RVM Systems
Redundant valve manifold
functionality options
The RVM System is available in three functionality options, the selection of which will be dependent
on the Safety Instrumented Function (SIF) that it is to be used within.
1oo2, 2oo2 double channel and uniquely 2oo3 triple channel systems are available.
Compact 1oo2 Semi modular 1oo2 Modular 1oo2
(with bypass)
1oo2 "Safety"
Double channel
redundant system
Redundancy for the
process valve closure.
Any one out of two solenoid
valves needs to de-energise
to ensure safety.
Compact 2oo2 Semi modular 2oo2 Modular 2oo2
(with bypass)
2oo2 "Availability"
Double channel
redundant system
Redundancy for the process
valve to remain open.
Any one out of two solenoid
valves needs to
remain energised to
ensure availability.
Compact 2oo3 Semi modular 2oo3 Modular 2oo3
(with bypass)
2oo3 "Safety and
Availability"
Triple channel
redundant system
Any two channels out of
three need to operate to
provide safety (process valve
closure) and availability
(process valve remain open).
The RVM system
combines the strength
of "1oo2" and "2oo2" thus
increasing both safety and
availability functions.
