Festo JMFH-5/2-D-3-C (151871) High-Performance 5/2-Way Bistable Solenoid Valve

The Ultimate Solution for Precision Pneumatic Control in Compact Spaces

The Festo JMFH-5/2-D-3-C (Order No. 151871) represents the pinnacle of pneumatic control technology. Engineered for industrial automation, building management systems, and machinery engineering, this 5/2-way bistable solenoid valve delivers exceptional performance, reliability, and energy efficiency. As part of Festo’s renowned JMFH series, it combines the robustness of a mechanical switch with the intelligence of modern electronics, making it the definitive choice for complex automation projects.

Core Product Overview

This valve is a double-acting, electrically controlled 5/2-way valve with a bistable (latching) function. This means it maintains its last switched position even after the control signal is removed, drastically reducing energy consumption and heat generation compared to monostable valves. It features a compact design with a nominal width of 65 mm (or 72 mm including the mounting base) and is designed for mounting on sub-bases according to ISO 5599-1 (Size 3) standards.

Key Features & Technical Advantages

• High Flow Capacity: Boasts a standard nominal flow rate of 4,500 l/min (standardized to DIN 1343), ensuring rapid actuation of cylinders and high-speed processes even in demanding applications.
• Bistable Energy Efficiency: The latching mechanism requires power only to change states, not to maintain them. This "pulse operation" capability significantly lowers operational costs and extends the lifespan of the coil.
• Robust Construction: The valve body is made of die-cast aluminum with high-quality NBR seals, offering excellent resistance to wear and corrosion. It is rated for an operating pressure range of 2 to 10 bar and an ambient temperature of -5°C to 40°C (media temperature: -10°C to 60°C).
• IP65 Protection: With an IP65 ingress protection rating, the JMFH-5/2-D-3-C is fully protected against dust and water jets, making it suitable for harsh industrial environments, including outdoor installations and wash-down areas.
• Modular & Flexible:

• Manual Override: Includes a push-button manual override (ISO code 355) with a locking mechanism for easy setup and maintenance.
• Plug-in Coils: Compatible with Festo’s universal coil series (e.g., MSFG-24/42-50/60), allowing for quick replacement without tools.
• Integrated Diagnostics: Optional LED modules (e.g., KMF-1-24DC-2.5-LED) can be mounted directly on the valve or plug for instant visual status indication and troubleshooting.

• Fast Response: Features a reverse switching time of approximately 18 ms, ensuring high dynamics for time-critical applications.

Technical Specifications

Applications

The Festo JMFH-5/2-D-3-C is versatile enough to handle a wide range of industrial tasks:

• Machine Building: Controlling double-acting cylinders in packaging, conveyor, and assembly machinery.
• Process Automation: Managing air distribution in chemical plants, water treatment facilities, and food processing lines.
• Building Automation: HVAC control, door actuation, and pneumatic locking systems.
• Mobile Hydraulics/Pneumatics: Control systems for construction and agricultural machinery.

Ordering Information

Important Note: The base valve (Order No. 151871) is supplied without the solenoid coils and connectors. To create a fully functional unit, you must order the following separately:

1. Solenoid Coils: 2x (e.g., MSFG-24/42-50/60 for 24V DC/AC).
2. Connector: 1x (e.g., MSSD-F for square plug or MS-DIN-F for round plug).

Why Choose the JMFH-5/2-D-3-C?

In a market flooded with generic pneumatic components, the Festo JMFH series stands out for its German engineering precision and future-proof design. By choosing the 151871, you are investing in a component that offers:

• Reduced Total Cost of Ownership (TCO) through energy-saving bistable technology.
• Minimized Downtime thanks to modular, plug-and-play repair capabilities.
• Global Standardization with ISO-compliant mounting and interfaces.

Upgrade your pneumatic systems with the reliability and performance of Festo. The JMFH-5/2-D-3-C is not just a valve; it is a smart power management solution for the factory of the future.