The Festo HEE-1/4-D-MIDI-24 is a high-performance on/off valve for pneumatic control systems. It offers soft sealing, electric actuation, and a piston gate valve design for reliable operation and easy integration.
Product Modelhee-1/4-d-midi-24
Material Number
186515
Product ID6661
Stock on Request
Last updated: 8/29/2026
Key Features
1
Reliable OperationThe Festo HEE-1/4-D-MIDI-24 is designed to provide consistent and reliable operation in various pneumatic control applications. Its soft sealing principle ensures minimal leakage and long service life.
2
Electric ActuationEquipped with electric actuation, this valve offers precise control and easy integration into your automation system. It supports both 24 V DC and 230 V AC supply voltages.
3
Piston Gate Valve DesignThe piston gate valve design provides a robust and efficient flow control mechanism. This design ensures that the valve operates smoothly and maintains its performance over time.
4
Detenting Manual OverrideThe detenting manual override feature allows for easy manual operation of the valve, ensuring that it can be controlled even in the absence of power. This feature is particularly useful during maintenance or in emergency situations.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Structural design
Piston gate valve
Actuation type
Electrical
Sealing principle
Soft
Exhaust air function
Without flow control option
Manual override
Detenting
Reset method
Mechanical spring
5
Compliance and CertificationThe Festo HEE-1/4-D-MIDI-24 meets various international standards and regulations, including the EU Low Voltage Directive (cE mark) and UK regulations for electrical equipment (cE marking). It also complies with ISO 8573-1:2010 for compressed air quality and is RoHS-compliant.
Type of control
Pilot-controlled
Symbol
00991008
Valve function
3/2, closed, monostable
Operating pressure
2.5bar 16bar
Lap
Overlap
C value
7l/sbar
b-value
0.47
Standard nominal flow rate
2400l/min
Duty cycle
100%
Coil characteristics
24 V DC: 2.5 W
Permissible voltage fluctuations
+/- 10 %
Operating medium
Compressed air as per ISO 8573-1:2010 [7:4:4] Inert gas
Information on operating and pilot media
Operation with oil lubrication possible (required for further use)
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
Note on materials
RoHS-compliant
LABS (PWIS) conformity
VDMA24364-B1/B2-L
Temperature of medium
-10°C 60°C
Ambient temperature
-10°C 60°C
Type of mounting
Line installation With accessories
Mounting position
Any
Flow direction
Non-reversible
Product weight
500g
Pneumatic connection 1
G1/4
Pneumatic connection 2
G1/4
Pneumatic connection 3
G1/4
Air quality class at the output
Compressed air as per ISO 8573-1:2010 [7:4:4] Inert gas
Electrical connection
Form C Plug as per DIN EN 175301-803
Seals material
NBR
Housing material
Die-cast aluminum
Manufacturer ID
186515
Festo HEE-1/4-D-MIDI-24 On/Off Valve - Reliable Pneumatic Control | INDSLT