The Festo MFH-3-1/2, with MPN 9857, is a high-performance solenoid valve, meticulously designed for efficient and reliable directional control in various industrial applications. This valve ensures precise flow management and robust performance under various operating conditions.

Key Features:

Versatile Functionality: Offers a 3/2 closed, monostable valve function, suitable for a wide range of applications.
Durable and Reliable: Features robust construction with aluminum die-casting housing and NBR seals, ensuring long-term reliability and performance.
Optimal Control: Equipped with pilot-operated control and capable of operating with pressures from 1.5 to 8 bar, it provides precise flow management.
Environmental Adaptability: Operates effectively within a temperature range from -20 to 60°C, making it suitable for various environmental conditions.

Benefits:

Enhanced Operational Efficiency: By ensuring precise flow direction and control, it enhances the overall efficiency and reliability of pneumatic systems.
Cost-Effective Operation: Optimizes energy usage and reduces operational costs through efficient performance.
Extended Equipment Life: Prevents wear and tear on connected components, thereby extending their lifespan.

Applications:

Industrial Automation: Ideal for use in automated manufacturing lines, control systems, and general pneumatics, where reliable and efficient control of air flow is critical.

The Festo MFH-3-1/2 stands out as a testament to Festo’s commitment to innovation and quality in pneumatic solutions, offering a robust and versatile valve option for diverse industrial needs.

Technical Data

Feature	Specification
Valve function	3/2, closed, monostable
Actuation type	Electrical
Width	52 mm
Standard nominal flow rate	3700 l/min
Pneumatic working port	G1/2
Operating voltage	Via solenoid coil, to be ordered separately
Operating pressure	0.15 MPa … 0.8 MPa
	1.5 bar … 8 bar
Structural design	Plate seat
Reset method	Mechanical spring
Certification	c UL us – Recognized (OL)
Degree of protection	IP65
Nominal width	14 mm
Width dimension	69 mm
Exhaust air function	With flow control option
Sealing principle	Soft
Mounting position	Any
Manual override	Detenting
Type of control	Pilot-controlled
Flow direction	Non-reversible
Symbol	00991041
Lap	Underlap
b-value	0.3
Switching time off	90 ms
On switching time	18 ms
Max. positive test pulse with 0 signal	2200 µs
Max. negative test pulse on 1 signal	3700 µs
Coil characteristics	See solenoid coil, to be ordered separately
Operating medium	Compressed air as per ISO 8573-1:2010 [7:4:4]
Information on operating and pilot media	Operation with oil lubrication possible (required for further use)
Corrosion resistance class (CRC)	1 – Low corrosion stress
LABS (PWIS) conformity	VDMA24364-B1/B2-L
Storage temperature	-20 °C … 60 °C
Temperature of medium	-10 °C … 60 °C
Ambient temperature	-5 °C … 40 °C
Product weight	1100 g
Electrical connection	Via F coil, to be ordered separately
Type of mounting	Optionally: On terminal strip With through-hole
Pilot exhaust air port 82	M5
Pneumatic connection 1	G1/2
Pneumatic connection 2	G1/2
Pneumatic connection 3	G1/2
Note on materials	RoHS-compliant
Seals material	NBR
Housing material	Die-cast aluminum