ROSS Pneumatrol provides engineered pneumatic solutions for use within hazardous and non-hazardous environments.
About Namur Mounted Valves
ROSS Pneumatrol is aware of how crucial it is to follow the most stringent clearance procedures in order to deliver goods that satisfy the highest standards for quality and safety.

We adhere to standards that regulate our production practices and concepts in order for our products to be used globally. ROSS Pneumatrol’s quality management system includes ISO9001 accreditation. For ongoing process and product improvement, our quality team works hard to make sure all of our procedures are tracked and documentation is maintained.
Different regionally certified goods are needed in many of the regions where we operate in order to maintain workplace safety regulations. This indicates that our products both meet and surpass many approvals. ATEX, IECEx, CCCEx, FM, and SIL certifications are among the endorsements we own for plenty of our products.
Descriptions of ROSS Pneumatrol 1/4″, BSP/NPT, Namur Mount, 3/2, 5/2 or 5/3, Internal or External Pilot, Single or Dual Solenoid
- Solenoid valve designed for direct mounting onto 1/4 turn pneumatically operated valve actuators meeting ‘NAMUR’ standard fixing dimensions.
- The valve is illustrated with dual safe area terminal box coils.
- Body material is available in Aluminium (standard), Stainless Steel, and Brass.
- Seal kit available – VSKT25P.
- Compatible with all safe and hazardous area solenoids.
Features of 1/4″, BSP/NPT, Namur Mount, 3/2, 5/2 or 5/3, Internal or External Pilot, Single or Dual Solenoid
- Interchangeable CNOMO interface operators including various hazardous area options
- Integrated Exhaust to Spring (ETS) feature in 3/2 position
- Top face air connection
- 1/4? mains air and exhaust ports
- Solenoid/spring or solenoid/solenoid functions
- Built-in 3/2 to 5/2 function conversion facility for spring return and double-acting actuators respectively
- SIL 2 Capable (De-energise to trip @ HFT=0) SIL 3 Capable (De-energise to trip @ HFT=1) when used in 3/2 mode
Material Specifications of 1/4″, BSP/NPT, Namur Mount, 3/2, 5/2 or 5/3, Internal or External Pilot, Single or Dual Solenoid
STANDARD | |
Body and End Caps | Black Anodised Aluminium (Dural) |
Spool | Hard Anodised Aluminium PTFE Impregnated |
Spacers | Glass Filled Acetal |
Seals | Nitrile |
Spring | Music Wire |
Mounting Screws | Stainless Steel |
Change Over Plate | Nylon 66 30% Glass Filled |
Valve Specifications of 1/4″, BSP/NPT, Namur Mount, 3/2, 5/2 or 5/3, Internal or External Pilot, Single or Dual Solenoid
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 |
Source: https://www.pneumatrol.com
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