Compact MIDI grid dimension, NPT connections, and precise air control make the Festo HEL-3/8-D-MIDI-NPT ideal for pneumatic systems.
Product Modelhel-3/8-d-midi-npt
Material Number173919
Product ID5825
Stock on Request
Last updated: 8/29/2026
Key Features
1
Compact DesignThe HEL-3/8-D-MIDI-NPT features a compact MIDI grid dimension of 55 mm, making it perfect for space-constrained applications. Its small size allows for easy integration into pneumatic systems without compromising performance.
2
Efficient OperationEquipped with a soft mounting principle, this valve ensures smooth operation and reduces wear on the components. This results in longer lifespan and minimal maintenance requirements.
3
Precise Air ControlThe valve offers a 2/2-way, closed, monostable function, providing precise control over airflow. This is particularly useful in applications where consistent air pressure is crucial.
4
Robust ConstructionThe valve is made from die-cast aluminum, ensuring high durability and resistance to corrosion. It also meets the requirements of the RoHS directive, making it an environmentally friendly choice.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Width dimension
55mm
Exhaust air function
With flow control option
Actuation type
Pneumatic
Sealing principle
Soft
Mounting position
Any
Manual override
None
5
Versatile Mounting OptionsThe HEL-3/8-D-MIDI-NPT supports in-line installation and offers optional manual override, providing flexibility in mounting positions. This versatility makes it suitable for a wide range of pneumatic system configurations.
Structural design
Piston gate valve
Reset method
Mechanical spring
Type of control
Direct
Flow direction
Non-reversible
Symbol
00991513
Valve function
2/2, closed, monostable
Operating pressure
3bar 16bar
b-value
0.39
C value
16.5l/sbar
Standard nominal flow rate
3200l/min
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
LABS (PWIS) conformity
VDMA24364-B1/B2-L
Air quality class at the output
Compressed air as per ISO 8573-1:2010 [7:4:4] Inert gas
Temperature of medium
-10°C 60°C
Ambient temperature
-10°C 60°C
Product weight
270g
Type of mounting
Line installation With accessories
Pneumatic connection 1
3/8 NPT
Pneumatic connection 2
3/8 NPT
Note on materials
RoHS-compliant
Seals material
NBR
Housing material
Die-cast aluminum
Manufacturer ID
173919
Festo HEL-3/8-D-MIDI-NPT Pneumatic On/Off Valve - Reliable Air Control | INDSLT
