V81, V82, V83 & V84 Bypass function for online servicing
Technical features
• G1/4, 1/4 NPT, G1/2, 1/2 NPT
Medium: Filtered, non-lubricated or dry compressed air, instrument air nitrogen and other nonflammable neutral dry fluids Operating pressure: V81, V82 & V83: 1 … 10 bar (145 psi) 2 … 8 bar (with 98025 Valves) V84: 12 bar (174 psi) 10 bar (145 psi) with CSA approval Additional filter: Installation of an in-line filter is recommended (in the direction of flow from the actuator to the RVM)
• International approvals • Three design options: Compact, semi-modular and modular • Aluminium or stainless steel construction For specific valve technical information please go to the relevant valve series pages.
1 VALVES
• Redundant valve manifold system
Outdoor installation
Ambient/Media temperature: V81,V82 & V83: Up to -40°C … +80°C V84: Up to -55°C to +80°C (-67°F … +176°F), See option selectors. Depending on solenoid system Air supply must be dry enough to avoid ice formation at temperatures below +2°C (35°F). For outdoor installations must be protected all connections against the penetration of moisture and a solenoid with IP66 protection must be used!
1oo2, 2oo2 and 2oo3 increased safety & availability
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.
73
Compact 1oo2 (V82 & V84)
Semi modular 1oo2 (V87 & V88)
Modular 1oo2 (with bypass) (V81 & V83)
1oo2 “Safety” Double channel redundant system
Compact 2oo2 (V82 & V84)
Semi modular 2oo2 (V87 & V88)
Modular 2oo2 (with bypass) (V81 & V83)
2oo2 “Availability” 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 2oo3 (V82 & V84)
Semi modular 2oo3 (V87 & V88)
Modular 2oo3 (with bypass) (V81 & V83)
2oo3 “Safety and Availability” Triple channel redundant system Redundancy for the process valve closure. Any one out of two solenoid valves needs to de-energise to ensure safety.
For further information www.imi-precision.com
Redundancy for the process valve closure. Any one out of two solenoid valves needs to de-energise to ensure safety.