FESTO VLO-3-34 Directional Control Valve | 3/2 Normally Closed, 34mm, 1800 l/min, IP65 Specs

FESTO VLO-3-34 Directional Control Valve | 3/2 Normally Closed, 34mm, 1800 l/min, IP65 Specs

FESTO VLO-3-34 directional control valve specifications. 3/2-way normally closed, 34mm valve size, 1800 l/min flow rate, 24V DC, IP65 protection. For industrial automation and pneumatic control applications.

Product Overview

The FESTO VLO-3-34​ is a 3/2-way normally closed directional control valve​ from the VLO series, designed for industrial pneumatic control applications. This model features a 34mm valve size, 1800 l/min standard rated flow, 24V DC operation, and IP65 protection. The "3-34" designation indicates the specific valve configuration (3/2-way normally closed function with 34mm size). This compact, metal-housed valve provides reliable switching for compressed air systems in automation equipment, material handling, and process control applications requiring higher flow rates.

Technical Specifications

Note: Specifications are based on FESTO VLO series technical documentation. The "VLO-3-34" model specifically indicates 3/2-way NC function and 34mm size. Actual specifications may vary slightly depending on production batch.

Model Number Decoding (VLO-3-34)

• VLO:​ Series designation (VLO directional control valve series)

• 3-34:​ Valve function and size (3 = 3/2-way normally closed function, 34 = 34mm valve size)

Note:​ The "3" prefix indicates the 3/2-way normally closed valve function. The "34" suffix indicates the 34mm valve size. This model does not include additional function letters (like G, E, W) as it is a standard 3/2-way configuration.

Key Features

• 3/2-Way Function:​ Normally closed configuration for single-acting cylinder control

• High Flow Rate:​ 1800 l/min standard rated flow for rapid response in high-flow applications

• Compact Design:​ 34mm valve size optimized for space-constrained installations

• Metal Housing:​ Die-cast aluminum construction for durability and heat dissipation

• IP65 Protection:​ Dust-tight and water-jet resistant for industrial environments

• LED Status Indicator:​ Visual indication of valve switching status

• Manual Override:​ Push-button with locking function for testing and maintenance

• Quick Response:​ Fast switching times (≤15 ms ON, ≤25 ms OFF)

• Wide Pressure Range:​ -0.9 to 10 bar operating range (including vacuum applications)

• Standard Connections:​ M8 electrical connector and G1/4 pneumatic ports

• Normally Closed:​ Ports closed in de-energized state for safety applications

Typical Applications

• Industrial Automation:​ Control of single-acting pneumatic cylinders in high-flow systems

• Material Handling:​ Workpiece clamping and release systems requiring rapid response

• Packaging Machinery:​ Air control for high-speed packaging equipment

• Assembly Systems:​ Component positioning and fixturing with larger actuators

• Process Control:​ Pneumatic valve control in manufacturing processes requiring higher flow rates

• Test Equipment:​ Laboratory and production test setups with high-flow requirements

• Robotics:​ End-of-arm tooling control for larger grippers or actuators

• Automotive Manufacturing:​ Production line automation with high-flow pneumatic circuits

Important Technical Notes

1. Operating Pressure:​ Do not exceed 10 bar maximum operating pressure. For vacuum applications, minimum pressure is -0.9 bar.

2. Pilot Pressure:​ Ensure pilot pressure is within 3-8 bar range for proper operation.

3. Electrical Connection:​ Use 24V DC power supply. Ensure correct polarity (reverse polarity protected).

4. Pneumatic Connections:​ Use appropriate sealing (PTFE tape or sealant) on G1/4 threads. For push-in fittings, use 10mm OD tubing.

5. Air Quality:​ Use filtered compressed air according to ISO 8573-1:2010 standards. Lubricated air can be used but requires continuous lubrication once started.

6. Mounting:​ Can be mounted in any position. Avoid excessive vibration or shock.

7. Temperature Limits:​ Operating temperature range is -5°C to +50°C. Do not use outside this range.

8. Normally Closed Function:​ In de-energized state, supply port is closed. Ensure downstream equipment is designed for this condition.

9. Maintenance:​ Periodically check for leaks and proper operation. Clean pneumatic ports if clogged.

Note: For complete installation guidelines, dimensional drawings, and detailed technical data, consult the official FESTO VLO Series Technical Manual. Always verify the exact model number configuration with the manufacturer, as notation variations may occur.