ROSS Pneumatrol provides engineered pneumatic solutions for use within hazardous and non-hazardous environments.
About Namur Mounted Valves

ROSS Pneumatrol understands the importance of adhering to the strictest approvals to provide products that meet the highest quality and safety aspects.
For our products to be used on an international level we comply with standards that govern our manufacturing principles and processes. ROSS Pneumatrol is accredited to ISO9001 as part of our quality management system. Our quality team strives to ensure each of our processes is monitored and records are kept for continual process and product enhancement.
Many regions we are present in require different locally approved products to maintain safety standards of work environments. This means that our products meet and exceed more than one approval. We have the following approvals on many of our products; ATEX certification, IECEx certification, CCCEx certification, FM certification, and SIL certification.
Descriptions of ROSS Pneumatrol 1/4″, BSP/NPT, Namur Mount, 3/2 or 5/2, 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 an Exia coil.
- Body material is available in Aluminium (standard), Stainless Steel, and Brass.
- Seal kit available – VSKC15P.
- Compatible with all safe and hazardous area solenoids.
Features of 1/4″, BSP/NPT, Namur Mount, 3/2 or 5/2, Internal or External Pilot, Single or Dual Solenoid
- Interchangeable CNOMO interface coil units, including various hazardous area options
- Integrated Exhaust to Sprint (ETS) feature in 3/2 position
- Top-face air connection
- 1/4? BSP mains air connection and 1/8? BSP exhaust ports, also available in NPT ports
- Single coil spring return function or double coil stay put function
- Pilot exhaust dust caps fitted as standard
- 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 or 5/2, Internal or External Pilot, Single or Dual Solenoid
STANDARD | |
Body and End Caps | Black Anodised Aluminium (Dural) |
Spool | Hard Anodised Aluminium PTFE Impregnated |
Jet | Brass |
Spacers | Glass Filled Acetal |
Seals | Nitrile (Alternative Seals Available) |
Spring | Music Wire |
Mounting Screws | Stainless Steel |
Change Over Plate | Nylon 66 30% Glass Filled |
Gasket | Nitrile |
Valve Specifications of 1/4″, BSP/NPT, Namur Mount, 3/2 or 5/2, Internal or External Pilot, Single or Dual Solenoid
Standard | |
Inlet Port Connection Size | ¼” BSP |
Exhaust Port Connection Size | 1/8” BSP |
Working Pressure | 3 to 10 bar |
Cv Factor | 0.7 |
Flow Rate (at 6 bar with 1 bar pressure drop) | 675 l/min |
Maximum Ambient Temperature | +80°C |
Minimum Working Temperature | -20°C |
Source: https://www.pneumatrol.com
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