E43 2oo2 Modular Redundant Control Sytems is used for high availability & reliability applications Both solenoids are energised at the same time for increased redundancy measures. Compatiable with all hazardous area solenoids.

Actual product may differ from above image. Product details should be verified before purchase.

Pneumatrol Modular Redundant Control System (MRCS) is operated through a 1/2″ remote mount 3/2 pilot operated valve with redundant solenoid module assembly, able to provide high flow & low power capabilities
2oo2 Modular Redundant Control System is used for high availability & reliability applications
Both solenoids are energised at the same time, if signal is lost to one of the two solenoids the main control valve / actuator will remain in its operating position
Both solenoids must be de-energised in order to return the main control valve / actuator to its non-operating position
The redundant solenoids module can be fitted to any of Pneumatrol’s standard 3/2 or 5/2 solenoid spring control valves which utilise the CNOMO solenoid interface

FEATURES

External or internal pilot air connection
Dual solenoid / spring return function
Pilot exhaust dust cap fitted as standard
Interchangeable CNOMO interface
Full range of hazardous & safe area solenoids
ATEX, IECEx, GOST CU TR and NEPSI are all available
Body material available in aluminium (standard) & 316 stainless steel
Low temperature & high temperature seals are available on request
Indication ports (standard) with plugs & pressure gauges available as an option, also compatible with pressure switches
Also known as Redundant Valve Manifold (RVM)

MATERIAL SPECIFICATIONS

	STANDARD	Stainless Steel
Body and End Caps	Black Anodised Aluminium (Dural)	316 Stainless Steel
Spool	Hard Anodised Aluminium PTFE Impregnated	303 Stainless Steel
Spacers	Glass Filled Acetal	Glass Filled Acetal
Seals	Nitrile (Alternative Seals Available)	Nitrile (Alternative Seals Available)
Spring	Music Wire	Music Wire
Pressure Gauge	Mild Steel (0-10 Bar) 50mm diameter	304 Stainless Steel (0-10 Bar) 50mm diameter

VALVE SPECIFICATIONS

	STANDARD
Port Connection Size	1/2″ BSP
Working Pressure Internal Pilot Version	3 to 10 bar
Working Pressure External Pilot Version	3 to 10 bar
Minimum External Pilot Pressure	3 bar
Cv Factor	3.5
Flow Rate (at 6 bar with 1 bar pressure drop)	3534 l/min
Maximum Ambient Temperature	+80°C
Minimum Working Temperature	-20°C

E43 2oo2 Modular Redundant Control System

Product Overview

The ROSS Pneumatrol E43 2oo2 Modular Redundant Control System is engineered to provide increased reliability and availability within critical pneumatic control installations.

Utilising a Two Out of Two (2oo2) redundant architecture, the system is designed for applications where dependable control of process valves and actuators is required. The modular design allows flexible integration into existing and new automation systems while supporting maintenance and operational efficiency.

Manufacturer: ROSS Pneumatrol
Product Type: Modular Redundant Control System
Voting Architecture: 2oo2 (Two Out of Two)
Valve Platform: E43 Series
Application: High Availability and Reliability Systems

What is a 2oo2 Architecture?

A Two Out of Two (2oo2) voting system requires both control channels to agree before a control action is initiated.

This architecture is commonly used where:

High system availability is required
Operational continuity is critical
Enhanced reliability is essential
Redundant control improves system resilience
Critical valve actuation must be maintained

The result is a robust and dependable solution for demanding process industry applications.

Key Features

2oo2 redundant control architecture
Based on the proven E43 valve platform
High availability pneumatic control system
Enhanced operational reliability
Modular system construction
Suitable for safety-critical valve automation
Designed for continuous process operation
Simplified maintenance and servicing
Robust industrial construction

Applications

The E43 2oo2 Modular Redundant Control System is suitable for:

Emergency shutdown valve systems
Process isolation valves
Safety Instrumented Systems (SIS)
Critical actuator control
Process automation systems
Oil and gas facilities
Chemical and petrochemical plants
Energy generation and utility infrastructure
Industrial process facilities

Product Benefits

High Availability Operation

The redundant architecture helps maximise operational uptime, making the system ideal for applications where process interruptions are costly or undesirable.

Enhanced Reliability

Dual-channel control improves resilience and helps maintain reliable valve operation in critical installations.

Modular Design

The modular configuration simplifies replacement, maintenance and future upgrades while supporting standardisation across plant assets.

Improved Process Continuity

Designed for demanding applications, the E43 2oo2 system helps reduce the risk of operational disruption caused by individual component failures.

Suitable for Critical Valve Control

The system is particularly suited to safety-critical and high-availability valve automation applications where dependable performance is essential.

Typical Process Applications

The E43 2oo2 system can be implemented within:

Emergency Shutdown (ESD) systems
Process safety functions
Automated isolation valve assemblies
Pipeline control systems
Refinery process units
Chemical production facilities
Utility distribution systems
Critical energy infrastructure

Industries Served

Oil & Gas
Petrochemical Processing
Chemical Manufacturing
Energy & Utilities
Power Generation
Hydrogen Production
Process Industry
Industrial Automation

Why Choose ROSS Pneumatrol?

ROSS Pneumatrol has decades of experience supplying pneumatic control solutions for process automation, hazardous area applications and safety-critical systems. Our redundant control systems are designed to help customers achieve improved reliability, increased availability and dependable long-term operation.

As a UK manufacturer of engineered pneumatic technologies, ROSS Pneumatrol supports operators worldwide with proven valve automation and process safety solutions.

Important Notes

System architecture should be selected according to operational objectives and process requirements.
Suitability should be verified as part of the overall process safety and risk assessment strategy.
Installation and maintenance should be carried out in accordance with site engineering practices and applicable industry standards.
Final system performance depends upon overall system design, including actuators, controls and associated safety systems.

Download and Further Information

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