The Festo HEL-1/2-D-MIDI-NPT is a 2/2-way normally closed pneumatic on/off valve with soft sealing and non-reversible flow. Ideal for precise control in industrial applications, it offers reliable operation and efficient performance.
Product Modelhel-1/2-d-midi-npt
Material Number
173920
Product ID5827
Stock on Request
Last updated: 8/29/2026
Key Features
1
Precise ControlThe HEL-1/2-D-MIDI-NPT offers precise control with its 2/2-way normally closed design, ensuring consistent operation in various industrial applications.
2
Compact DesignWith a compact midi size, this valve is perfect for applications where space is limited, making it ideal for integration into complex systems.
3
Soft SealingThe valve features soft sealing, which provides a reliable seal and minimizes the risk of leakage, ensuring continuous operation without interruptions.
4
Non-Reversible FlowThe non-reversible flow direction ensures that the valve operates as intended, preventing backflow and maintaining the integrity of the system.
5
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
Robust ConstructionBuilt with die-cast aluminum housing and NBR seals, the HEL-1/2-D-MIDI-NPT is robust and durable, capable of withstanding various operating conditions and pressures.
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
0.37
C value
19.8l/sbar
Standard nominal flow rate
3600l/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
