FESTO MN1H-2-1-MS Solenoid Valve | 2/2-Way, G1 Port, Brass Specs

FESTO MN1H-2-1-MS solenoid valve specifications. 2/2-way normally closed, G1 threaded port, brass housing, 11,500 l/min flow rate, 0.5-10 bar operating pressure. For pneumatic automation systems.

FESTO MN1H-2-1-MS Solenoid Valve

The FESTO MN1H-2-1-MS​ is a 2/2-way normally closed solenoid valve​ from the MN1H series, featuring G1 threaded ports​ and brass housing construction. This pilot-operated diaphragm valve is designed for industrial pneumatic applications, providing reliable on/off control of compressed air flow. With brass housing for corrosion resistance, diaphragm valve design for soft sealing, and electrical actuation via N1 solenoid coil, it is suitable for applications requiring medium to high flow capacity in automation systems, packaging machinery, and material handling equipment. The "2-1-MS" designation indicates 2/2-way function, G1 port size, and brass housing material.

Key Features

• 2/2-Way Valve Function:​ Two ports, two positions (normally closed, monostable)

• G1 Threaded Port:​ Standard G1 (ISO 1179) connection

• Brass Housing:​ Corrosion-resistant construction for industrial environments

• Diaphragm Valve Design:​ Soft sealing principle for reliable operation

• Pilot-Operated Actuation:​ Efficient operation with low power consumption

• High Flow Capacity:​ 11,500 l/min nominal flow rate

• Wide Operating Pressure:​ 0.5 to 10 bar operating range

• Manual Override:​ Manual operation capability for testing and maintenance

• IP65 Protection:​ Dust-tight and water-resistant housing

• Compact Design:​ Suitable for inline mounting applications

Technical Specifications

Note: Specifications are based on FESTO MN1H series technical documentation and industry standards. The "MN1H-2-1-MS" model specifically indicates 2/2-way function, G1 port size, and brass housing. Solenoid coil must be ordered separately (N1 coil type).

Model Number Decoding (MN1H-2-1-MS)

• MN1H:​ Series designation (MN1H solenoid valve series, for N1 coil)

• 2:​ Valve function (2/2-way)

• 1:​ Port connection type (G1 thread size)

• MS:​ Housing material (brass construction)

Note:​ The "1" in the port designation indicates G1 thread size (approximately 1 inch nominal). The "MS" suffix specifies brass housing material. This is a base model designation; the solenoid coil is not included and must be ordered separately (typically N1 coil type with various voltage options).

Key Differences from Similar Models

Compared to other MN1H series valves:

• MN1H-2-1-MS:​ 2/2-way, G1 ports, brass housing​ (this model)

• MN1H-2-1/4-MS:​ 2/2-way, G1/4 ports, brass housing (smaller port size)

• MN1H-2-1/2-MS:​ 2/2-way, G1/2 ports, brass housing

• MN1H-2-3/4-MS:​ 2/2-way, G3/4 ports, brass housing

• MN1H-2-1-MS-NPT:​ Same function with NPT thread instead of G thread

• MN1H-5/2-D-1-C:​ 5/2-way function, different valve configuration

The G1 port size​ provides larger flow capacity compared to smaller port sizes (G1/4, G1/2, G3/4). The brass housing​ offers good corrosion resistance for industrial environments. This model is part of the MN1H series designed for use with N1 solenoid coils.

Typical Applications

• Industrial Automation:​ On/off control of pneumatic actuators and cylinders

• Packaging Machinery:​ Air flow control in packaging and filling equipment

• Material Handling:​ Pneumatic control in conveyor systems

• Process Control:​ Air supply shut-off in industrial processes

• Machine Tools:​ Tool clamping and positioning systems

• Assembly Equipment:​ Pneumatic control in automated assembly lines

• Test and Commissioning:​ Manual override for system testing

Important Selection & Installation Notes

1. Valve Function:​ This is a 2/2-way normally closed valve. When de-energized, the valve is closed (no flow). When energized, the valve opens to allow flow.

2. Port Configuration:​ Port is G1 male thread. Confirm the thread type (G1, R1, or NPT1) for your system. Use appropriate thread sealant if required.

3. Electrical Connection:​ The solenoid coil is not included​ and must be ordered separately (N1 coil type). Specify the required voltage (24V DC, 110V AC, or 230V AC).

4. Operating Pressure:​ Do not exceed 10 bar maximum operating pressure. The minimum operating pressure is 0.5 bar.

5. Flow Direction:​ The valve has a specific flow direction (typically indicated by arrow). Install with correct orientation.

6. Air Quality:​ Use filtered, lubricated or non-lubricated compressed air according to ISO 8573-1:2010. If using lubricated air, maintain consistent lubrication.

7. Mounting:​ Can be mounted with in-line installation or through-hole mounting. Ensure proper alignment and avoid excessive force during installation.

8. Temperature Range:​ Do not operate outside -10°C to +60°C media temperature or ambient temperature.

9. Flow Capacity:​ The 11,500 l/min flow rate is suitable for medium to high flow applications. Verify your system flow requirements.

10. Manual Override:​ The valve includes manual override capability via accessory. Use for testing and maintenance, but ensure the system is depressurized before manual operation.

11. Switching Frequency:​ Maximum switching frequency is 3 Hz. Do not exceed this limit in continuous operation.

12. Maintenance:​ Regular inspection for leaks is recommended. Check for proper sealing and smooth operation.

Note: For complete installation guidelines, dimensional drawings, and detailed technical data, consult the official FESTO MN1H Series Technical Manual​ or contact FESTO technical support. Always verify the exact model number configuration with the manufacturer, as notation variations may occur in different documentation systems.