173905

Name: Festo 173905 On/off valve HEE-3/8-D-MINI-110-NPT
Brand: Festo

On/off valve HEE-3/8-D-MINI-110-NPT

The Festo 173905 is an electrically actuated piston gate valve featuring a 3/2-way, closed, monostable valve function with a 40 mm width dimension and soft sealing principle. Operating at pressures from 0.25 MPa to 1.6 MPa (2.5 bar to 16 bar), this piloted component delivers a normal nominal flow rate of 1600 l/min, a C value of 7.3 l/sbar, and a b-value of 0.28 utilizing compressed air or inert gases. Built with a 110 V AC 50/60 Hz coil, detenting manual override, mechanical spring reset, and positive overlap lap, it maintains a 100% duty cycle under moderate corrosion stress (CRC 2) and permits oil lubrication. Submit the exact part number, quantity, and application requirements for a formal quote.

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Manufacturer: Festo
Part number: 173905
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Technical Specifications

Width dimension: 40 mm
Structural design: Piston gate valve
Actuation type: Electrical
Sealing principle: Soft
Exhaust air function: Cannot be throttled
Manual override: Detenting
Reset method: Mechanical spring
Type of control: Piloted
Valve function: 3/2-way, closed, monostable
Operating pressure: 0.25 MPa...1.6 MPa | 2.5 bar...16 bar
Lap: Positive overlap
C value: 7.3 l/sbar
b-value: 0.28
Normal nominal ow rate (normalized to DIN 1343): 1600 l/min
Duty cycle: 100%
Coil characteristics: 110 V AC: 50/60 Hz, initial power 5.0 VA, holding power 3.7 VA
Permissible voltage uctuations: +/- 10%
Operating medium: Compressed air as per ISO 8573-1:2010 [7:4:4] | Inert gases
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
CE marking (see declaration of conformity): As per EU low voltage directive
UKCA marking (see declaration of conformity): To UK instructions for electrical equipment
Type of mounting: In-line installation | With accessories
Mounting position: Any
Flow direction: Non-reversible

Engineering context

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Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

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Our sourcing response is prepared against Festo 173905. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.