United Kingdom

VA4 Series - 1/4" 3/2, 5/2 or 5/3, Ex db mb solenoid Valve VA4 Series Ex db mb

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Datasheet

1/4" Ports 3/2, 5/2 or 5/3 internal pilot operated spool valve. Complete with Ex db mb solenoid. 

 

  • Suitable for use in Zones 1 & 2.
  • Approved to international standards
  • ATEX & IECEx (CCCEx pending)
  • Body material available in
    • Aluminium (standard)
    • Stainless Steel
    • Brass
  • Valve body seal kit available - VSK200

• Internal pilot air connection

• Interchangeable CNOMO interface operators including various hazardous area options

• Single coil spring return function or double coil stay put function (3/2 & 5/2 Only)

• All ports open or all ports closed in the centre position (5/3 Only)

• Convenient fixing holes to enable bracket mounting

• Pilot exhaust caps fitted as standard

• Low-temperature seal kits available

 

MATERIAL SPECIFICATIONS

 STANDARD
Body and End CapsBlack Anodised Aluminium (Dural)
SpoolHard Anodised Aluminium PTFE Impregnated
SealsNitrile
SpacersGlass filled Acetal
SpringMusic Wire

 

VALVE SPECIFICATIONS

 Standard
Port Connection Size1/4” BSP / NPT
Working Pressure3 to 10 bar
Cv Factor1.2
Flow Rate (at 6 bar with 1 bar pressure drop)1246 l/min
Maximum Ambient Temperature+80°C
Minimum Working Temperature-20°C

 

COIL DETAILS

 DC Solenoid CoilAC Solenoid Coil
Area ClassZones 1 & 2 Zones 1 & 2 
Area CategoryEx dm mb IIC T4-6Ex dm mb IIC T4-6
Ingress ProtectionIP66IP66
Cable EntryStandard M20 x 1.5mmStandard M20 x 1.5mm
Ambient Temperature-20°C to +80°C-20°C to +80°C
Magnetic Wire ClassHH
Power Consumption2.4W9.5VA
Series Overview

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VA4 Series – Ex db mb Hazardous Area Solenoid Valve


Product Overview

The ROSS Pneumatrol VA4 Series is a hazardous area certified pneumatic solenoid valve designed for use within safety-critical industrial environments where reliable actuator control and explosion protection are required.

The valve is available in 3/2, 5/2 and 5/3 configurations, providing flexibility for spring-return and double-acting actuator applications whilst maintaining compliance with hazardous area requirements.

Manufacturer: ROSS Pneumatrol

Product Series: VA4

Valve Functions: 3/2, 5/2 or 5/3

Protection Concept: Ex db mb

Application: Hazardous Area Pneumatic Control and Valve Automation


Key Features

  • Ex db flameproof protection
  • Ex mb encapsulated protection
  • Available in 3/2, 5/2 and 5/3 valve functions
  • Suitable for hazardous gas and dust atmospheres
  • Designed for actuator and process valve automation
  • Robust industrial construction
  • Suitable for safety-critical applications
  • Long service life and dependable performance
  • Compatible with a wide range of pneumatic actuator systems

Applications

The VA4 Series is suitable for:

  • Pneumatic actuator control
  • Emergency shutdown (ESD) systems
  • Automated process valves
  • Ball valve automation
  • Butterfly valve automation
  • Safety Instrumented Systems (SIS)
  • Oil and gas installations
  • Petrochemical facilities
  • Chemical processing plants
  • Power generation and utility infrastructure

Product Benefits

Certified Hazardous Area Protection

The Ex db flameproof protection method prevents ignition of external hazardous atmospheres by containing any internal explosion within the enclosure.

The Ex mb encapsulation protection concept further enhances safety by sealing critical electrical components within a protective compound, helping protect against ignition risks and environmental influences.

Flexible Valve Functionality

The availability of 3/2, 5/2 and 5/3 valve configurations allows the VA4 Series to be matched to a wide variety of actuator and process control requirements.

Reliable Actuator Control

Designed specifically for industrial automation and valve actuation applications, the VA4 Series provides dependable pneumatic switching performance in demanding operating environments.

Reduced Maintenance Requirements

Robust construction and proven engineering principles help minimise maintenance requirements while supporting long-term operational reliability.

Suitable for Safety-Critical Installations

The VA4 Series is ideally suited to applications requiring reliable valve automation within hazardous and potentially explosive environments.


Typical Applications

The VA4 Series can be utilised within:

  • Hazardous area valve automation systems
  • Emergency shutdown valve applications
  • Process isolation systems
  • Pipeline control installations
  • Refinery process units
  • Offshore production facilities
  • Chemical processing plants
  • Critical process control systems

Available Options

The VA4 Series can be supplied with:

  • 3/2 valve configuration
  • 5/2 valve configuration
  • 5/3 valve configuration
  • Various voltage options
  • Multiple electrical connection styles
  • Hazardous area approved coil systems
  • Pneumatic actuator mounting arrangements
  • Application-specific control configurations

Industries Served

  • Oil & Gas
  • Petrochemical Processing
  • Chemical Manufacturing
  • Energy & Utilities
  • Offshore & Marine
  • Hydrogen Production
  • Industrial Automation
  • Process Control Systems

Why Choose ROSS Pneumatrol?

ROSS Pneumatrol has extensive experience designing pneumatic and electro-pneumatic control solutions for hazardous area and safety-critical applications. Our certified valve automation products are trusted worldwide to deliver reliable performance, regulatory compliance and long service life in some of the industry's most demanding environments.

As a UK manufacturer specialising in pneumatic control technology, ROSS Pneumatrol continues to support customers with innovative solutions engineered for safety, reliability and operational excellence.


Important Notes

  • Installation must comply with all relevant hazardous area regulations and certification requirements.
  • Electrical ratings, temperature classifications and operating parameters should be verified prior to installation.
  • Associated cable entries and accessories must maintain certification integrity.
  • Product configuration should be selected according to actuator requirements and process conditions.
  • Always consult the relevant certification and installation documentation before commissioning.

Download and Further Information

View the product page here:

View VA4 Series Ex db mb Solenoid Valve