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4M Series NAMUR Solenoid Valve 4M Series NAMUR Solenoid Valve 4M Series NAMUR Solenoid Valve

4M Series NAMUR Solenoid Valve

  • 4M series NAMUR solenoid valve
  • Direct mounting for pneumatic actuators
  • High-performance 5/2 and 5/3 way control
  • Internal pilot-oriented sliding column structure
  • Low-friction internal hole for long service life
  • No lubrication required for maintenance-free operation
  • Integrated manual override for testing
  • Available in DC24V, AC110V, AC220V
  • IP65 protection with DIN connector
  • ISO certified for global industrial standards.

AirTAC Type 4M Series: The Standard for NAMUR Interface Pneumatic Control


The AirTAC type 4M series is a specialized line of pilot-oriented solenoid valves designed specifically for the process industry. Featuring the NAMUR interface, these valves are engineered for direct mounting onto pneumatic actuators (such as those for ball valves and butterfly valves), eliminating the need for additional piping and reducing installation time and leak points.

Core Technical Features (Based on AirTAC Standards)

  • NAMUR Standard Mounting: Designed for direct connection to pneumatic actuators, ensuring a compact and efficient process control setup.

  • Pilot-Oriented Structure: The internal pilot-drive ensures sensitive and stable operation even in heavy-duty industrial environments.

  • Low Friction Internal Hole: The valve body uses AirTAC’s proprietary internal hole processing technology, resulting in minimal attrition friction, a low starting pressure, and a service life exceeding 20 million cycles.

  • Lubrication-Free Design: High-quality seals allow the 4M series to operate without additional oil lubrication, making it ideal for clean-room and sensitive chemical environments.

  • Manual Override: Integrated manual override button facilitates easy setup, maintenance, and manual testing during system outages.

  • Robust Environmental Protection: Equipped with IP65-rated coils and DIN connectors, providing excellent resistance to dust and moisture.


AirTAC type 4M Model Overview

  • 4M210-08: 5/2 Way NAMUR Solenoid Valve (1/4" Port).

  • 4M310-10: 5/2 Way NAMUR Solenoid Valve (3/8" Port).

  • 4M220-08: 5/2 Way Double Solenoid NAMUR Valve (1/4" Port).

  • 4M330-10: 5/3 Way Double Solenoid NAMUR Valve (3/8" Port).


Technical Specifications Overview

FeatureDetails
FluidClean Air (40-micron filtered)
InterfaceNAMUR Standard
Port Size1/4" (08), 3/8" (10)
Operating Pressure0.15 ~ 0.8 MPa (21 ~ 114 psi)
Proof Pressure1.2 MPa (175 psi)
Temperature Range-20 ~ 70°C
Power ConsumptionAC: 3.5VA / DC: 3.0W
Max. Frequency5 Cycles per Second

Primary Industrial Applications

The AirTAC 4M series is the essential choice for:

  • Process Automation: Direct control of pneumatic actuators for ball, butterfly, and plug valves.

  • Water Treatment: Automated valve control in filtration and chemical dosing systems.

  • Chemical & Petrochemical: Reliable gas control in harsh or sensitive environments.

  • Food & Beverage: Wash-down capable actuators for processing and packaging.


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