T25 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 is operated through a NAMUR mount 3/2 or 5/2 pilot operated valve with redundant solenoid module assembly, ability to mount directly to NAMUR interface actuators
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 NAMUR 3/2 or 5/2 solenoid/spring static seal spool 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	1/4″ 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	1.1
Flow Rate (at 6 bar with 1 bar pressure drop)	1050 l/min
Maximum Ambient Temperature	+80°C
Minimum Working Temperature	-20°C

T25 2oo2 Modular Redundant Control System

Product Overview

The ROSS Pneumatrol T25 2oo2 Modular Redundant Control System is a high-availability pneumatic control solution designed to support critical process and safety applications where operational continuity is a priority.

The system utilises a Two Out of Two (2oo2) voting architecture and modular design, providing increased reliability while supporting demanding process control requirements.

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

What is a 2oo2 System?

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

This voting philosophy is often used where:

High process availability is required
Operational continuity is critical
Redundant control channels improve reliability
Robust valve control is essential

The system architecture helps support dependable operation within process plants and safety-critical automation systems.

Key Features

2oo2 voting architecture
Modular redundant control design
High availability operation
Enhanced reliability for critical applications
Suitable for process and safety systems
Supports actuator and valve automation
Simplified maintenance and servicing
Compatible with Pneumatrol pneumatic control solutions
Designed for demanding industrial environments

Applications

The T25 2oo2 Modular Redundant Control System is suitable for:

Emergency shutdown valve systems
Safety instrumented functions
Process control applications
Critical valve automation
Actuated valve assemblies
Oil and gas facilities
Petrochemical plants
Energy generation sites
Hydrogen production facilities
Industrial process plants

Product Benefits

High System Availability

The system is designed to support applications where maximising uptime and ensuring continuous operation are key operational requirements.

Enhanced Reliability

Redundant architecture reduces the impact of individual device failures and helps maintain dependable operation within critical control systems.

Modular Design

The modular arrangement simplifies installation, maintenance and future expansion while helping standardise control system architecture.

Reduced Downtime

By improving control system resilience, the T25 2oo2 system can help reduce process interruptions and improve operational performance.

Suitable for Critical Applications

The system is particularly suited to installations where valve reliability and control integrity are essential for safe and efficient operation.

Typical Installations

The T25 2oo2 system can be used within:

Emergency Shutdown (ESD) systems
Process isolation valve systems
Critical actuator control installations
Safety-related automation systems
Pipeline control systems
Refinery process units
Chemical production facilities
Utility and power generation infrastructure

Industries Served

Oil & Gas
Petrochemical Processing
Chemical Manufacturing
Energy & Utilities
Power Generation
Hydrogen Applications
Industrial Automation
Process Industries

Why Choose ROSS Pneumatrol?

ROSS Pneumatrol has extensive experience supplying pneumatic control and safety solutions into safety-critical and process industries worldwide. Our modular redundant control systems are engineered to provide dependable performance, operational resilience and long-term reliability across some of the industry’s most demanding applications.

As a UK manufacturer with decades of experience in pneumatic valve control and hazardous area automation, ROSS Pneumatrol continues to support customers with innovative solutions designed to enhance both safety and productivity.

Important Notes

System architecture should be selected according to operational objectives and application requirements.
The suitability of a 2oo2 architecture should be evaluated as part of the overall process safety and control strategy.
Installation should comply with site engineering standards and applicable industry requirements.
Final system performance depends on the complete control system design and associated equipment selection.

Download and Further Information

View the product page here:

View T25 2oo2 Modular Redundant Control System