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Key Features

  • ATEX & IECEx Ex ia Certified
  • Intrinsically Safe NAMUR Valve
  • 3/2 or 5/2 Way Operation
  • Monostable Spring Return
  • Single Solenoid Operation
  • Internal Pilot Operation
  • 2–8 Bar Working Pressure
  • Direct NAMUR Actuator Mounting
  • 1/4" BSP or NPT Connections
  • Large 6mm Flow Orifice
  • 12 L/min Flow Rate
  • Hard Anodised Aluminium Body
  • Multiple Seal Material Options
  • Air & Inert Gas Service
  • -25°C to +75°C Valve Range
  • Three Manual Override Modes
  • Integrated Electrical Terminals
  • 1/2" NPT or M20 Cable Entry
  • IP67 Electrical Protection
  • Ex ia IIC Gas Protection
  • Ex ia IIIC Dust Protection
  • Ga / Da Protection Levels

Datasheets

Description

ATEX Ex ia NAMUR Solenoid Valve – Rotex 51450V02IS-6


The Rotex 51450V02IS-6 is an ATEX and IECEx Ex ia intrinsically safe NAMUR solenoid valve designed for direct mounting onto pneumatic rotary actuators in hazardous-area process and valve automation applications.

The valve can be configured for 3/2 or 5/2 way monostable operation, allowing one NAMUR valve platform to control either single-acting or double-acting pneumatic actuators. Internal pilot operation provides reliable switching across a 2 to 8 Bar working pressure range.

Featuring a hard-anodised aluminium body, 6mm orifice and 12 L/min water flow, the 51450V02IS-6 combines compact NAMUR mounting with certified Ex ia intrinsic safety and IP67 environmental protection.

Valve Function & Operation

Function: 3/2 or 5/2 way monostable
Operation: Internally piloted
The Rotex 51450V02IS-6 is designed for direct NAMUR mounting, reducing external pipework between the control valve and pneumatic actuator.
In 3/2 configuration, it can be used for control of single-acting spring-return pneumatic actuators.
In 5/2 configuration, it can be used for directional control of double-acting pneumatic actuators.
The monostable design uses a single solenoid and automatically returns to its normal position when the electrical signal is removed.
Operating pressure: 2 to 8 Bar

Ports, Orifice & Flow

Connections: 1/4" BSP or NPT
Orifice: 6mm
Flow rate: 12 L/min
The compact flow path is designed for reliable pneumatic actuator control while maintaining the benefits of direct NAMUR mounting.

Construction & Materials

Body: Hard-anodised aluminium
Internals:
Aluminium
Brass
316 stainless steel
Available seat/seal materials:
NBR
FKM (Viton®)
EPDM
Fluorosilicone
Suitable media:
Air
Inert gases
Operating temperature: -25°C to +75°C

Manual Override

The Rotex 51450V02IS-6 offers a versatile manual override for commissioning, maintenance and actuator testing.
Available operation includes:
Push – momentary manual operation
Push and turn – mechanically retained operation
Stay-put – maintains the manually selected state
This provides useful local control where electrical actuation is unavailable or during commissioning.

ATEX & IECEx Intrinsic Safety

The valve incorporates an Ex ia intrinsically safe IP67 enclosure with integrated electrical terminals.
Approvals: ATEX & IECEx
IECEx certificate: IECEx BAS 12.0128X – Issue 1
ATEX certificate: Baseefa12ATEX0243X – Issue 1
Gas marking:
Ex ia IIC T5 Ga
-60°C ≤ Ta ≤ +75°C
Ex ia IIC T6 Ga
-60°C ≤ Ta ≤ +60°C
Dust marking:
Ex ia IIIC T200 125°C IP67 Da
-60°C ≤ Ta ≤ +75°C

Intrinsically Safe Parameters

Minimum operating parameters:
Voltage: 10V
Current: 20mA
Power: 0.20W
Entity parameters:
Ui: 32V DC
Ii: 230mA
Pi: 2.3W
Li: 0
Ci: 0
The associated intrinsically safe barrier or galvanic isolator must be selected in accordance with these certified entity parameters and the requirements of the complete Ex ia circuit.

Electrical Connection

Protection: IP67
Electrical terminals: Integrated
Conduit entry options:
1/2" NPT
M20 × 1.5
The integrated terminal enclosure provides a robust electrical connection without requiring a conventional DIN plug arrangement.

Typical Applications

The Rotex 51450V02IS-6 is particularly suited to hazardous-area pneumatic actuator control in oil and gas installations, petrochemical plants, chemical processing, tank farms, process skids, offshore equipment, refineries and industrial process valve automation.
Its convertible 3/2 or 5/2 NAMUR configuration makes it useful where both single-acting and double-acting pneumatic actuators are used across a plant.

Why Choose the Rotex 51450V02IS-6?

The principal advantage is the combination of direct NAMUR mounting, 3/2 or 5/2 functionality and Ex ia intrinsic safety in one compact valve.
Direct actuator mounting reduces pneumatic pipework, while the 3/2 or 5/2 configuration provides flexibility for single-acting and double-acting actuators. With IP67 protection, integrated terminals and multiple manual override modes, it is particularly well suited to hazardous-area process valve automation.

Related Products & Categories.



ATEX Solenoid Valves
View Technical Specification

Technical Specification

Brand: Rotex

Model: 51450V02IS-6

Width: 53.00 mm

Height: 38.00 mm

Depth: 191.00 mm

Weight: 2.00 kg

Valve / Product Type: Solenoid Valve

Body Material: Aluminium

Voltage: 24vDC

Port Size: 1/4 thread, Namur mount

Function: 3/2 Normally Closed, 5/2 Single Acting

Operation: Pressure Assisted from 0.5 Bar

Pressure: 2 Bar, 2.5 Bar, 3 Bar, 3.5 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar

Seals: NBR, FKM (Viton)

Approvals:: ATEX Exia, CUTR, IP65, IP66, IP67, SIL3, UL

Media: Air, Gases (Non Aggressive)

Options required: Manual Override, Mounting Holes, Shading Ring - Silver, Shading Ring - without

Orifice: 6.0mm

Found in these Categories

Namur ATEX Exia Ali StSt 3+5/2 solenoid valve 2-8 Bar single

£301.79 incl. VAT £251.49 ex. VAT

-45% Was £545.40 incl. VAT
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Brand: Rotex

Model: 51450V02IS-6

Stock: 6 in stock

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