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    NAMUR Solenoid Valves: Pneumatic Actuator Control Solutions

    NAMUR Solenoid Valves: Pneumatic Actuator Control Solutions

    NAMUR Solenoid Valves - Specialists in Pneumatic Actuator Control

    NAMUR solenoid valves represent a specialized series of solenoid valves specifically designed for direct control of pneumatic actuators. Their distinguishing feature is the ability to mount directly onto the actuator, eliminating the need for intermediate connections and significantly reducing both the required space and potential leaks in the system.

    Technical Specifications

    • Standard: NAMUR (VDI/VDE 3845)
    • Available Configurations: Primarily 5/2 and 5/3
    • Body Material: Anodized aluminum or stainless steel (versions for corrosive environments)
    • Protection Rating: IP65 or higher in many versions
    • Application: Optimized for quarter-turn actuators
    • Compatible Coil Voltages: 12V DC, 24V DC, 24V AC, 110V AC, 230V AC
    • Additional Options: Available with visual position indicators

    Key Advantages

    These valves follow the NAMUR standard, an internationally standardized interface that ensures compatibility with a wide range of pneumatic rotary actuators available on the market. This standardization allows for simple and direct installation without the need for special adapters or modifications, simplifying both initial assembly and subsequent maintenance.

    Typical Applications

    • Control of pneumatic ball valves
    • Automation of gate valves
    • Petrochemical industry and hydrocarbon processing
    • Water treatment plants
    • Mining facilities and mineral processing
    • Outdoor applications or those exposed to adverse environmental conditions

    A fundamental advantage of NAMUR solenoid valves is their optimized design for outdoor applications and harsh environments. Many versions include IP65 protection or higher, making them suitable for installations exposed to weather, dusty environments, or areas with splashing liquids.

    The NAMUR series is also available in NAMUR pneumatic valve versions (without solenoid), for applications where purely pneumatic control is preferred. Their specific design for actuator control, combined with ease of installation and maintenance, makes NAMUR solenoid valves the preferred choice for valve automation systems in numerous industrial applications where reliability and simplicity are fundamental requirements.

    What makes NAMUR solenoid valves different from standard solenoid valves?

    NAMUR solenoid valves are specifically designed to mount directly onto pneumatic actuators following the international NAMUR standard (VDI/VDE 3845). This direct mounting capability eliminates intermediate connections, reduces potential leak points, minimizes installation space, and ensures compatibility with standardized actuator interfaces across different manufacturers. Unlike standard solenoid valves that may require additional fittings or adapters, NAMUR valves offer a simplified, more reliable connection specifically optimized for actuator control applications.

    In which industries are NAMUR solenoid valves most commonly used?

    NAMUR solenoid valves are widely used in industries requiring reliable valve automation in challenging environments, including: petrochemical processing, oil and gas production, water and wastewater treatment, chemical manufacturing, power generation, mining operations, and food and beverage processing. Their robust design with high IP ratings (typically IP65 or higher) makes them particularly valuable in outdoor installations and harsh industrial environments where exposure to weather, dust, or corrosive substances is common.

    What are the primary configuration options available for NAMUR solenoid valves?

    NAMUR solenoid valves are primarily available in 5/2 and 5/3 configurations. The 5/2 configuration (5 ports, 2 positions) is used for standard double-acting actuators, while the 5/3 configuration (5 ports, 3 positions) provides an additional center position that can be configured for specific fail-safe requirements (closed center, open center, or pressure center). Additional options include various coil voltages (12V DC, 24V DC, 24V AC, 110V AC, 230V AC), body materials (anodized aluminum or stainless steel for corrosive environments), and visual position indicators for operational status monitoring.