Festo HE-D-MIDI Manual On-Off Valve

Description

The Festo HE-D-MIDI, part number 186513, is a high-quality manual on-off valve designed for isolating and venting compressed air systems. As a 3/2-way valve, it safely shuts off upstream pressure while simultaneously exhausting the downstream line, which is crucial for maintenance and safety procedures. Part of the robust D-series, this MIDI-sized valve is suitable for a wide range of industrial pneumatic applications.

Specifications

• Manufacturer: Festo
• Type: HE-D-MIDI
• Part Number: 186513
• Function: 3/2-way, manually operated on-off valve
• Pneumatic Connection: G1/2
• Maximum Operating Pressure: 16 bar (240 psi)
• Actuation Type: Manual rotary knob with locking facility
• Series: D-Series, MIDI

Label Info

• p1 max: 16 bar / 240 psi / 1.6 MPa
• Model: HE-...-D-MIDI
• Part Number: 186513
• Series Code: B043

Application

This valve is typically used as the main shut-off for a machine or a section of a pneumatic installation. It is a key component in FRL (Filter-Regulator-Lubricator) units and is essential for implementing Lockout-Tagout (LOTO) safety procedures.

Country of Origin

Made in Germany.

CO2 Impact

By purchasing this pre-owned component, you are helping to avoid the emission of approximately 9.0 kg of CO2. This saving is comparable to the emissions from driving a standard car for 45 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

The third port (port 3) is the exhaust port. When the valve is closed, shutting off the main air supply from port 1 to port 2, it connects the downstream system (port 2) to the exhaust (port 3), safely venting any trapped compressed air.

Yes, the blue rotary knob on the HE-D-MIDI has an integrated locking facility. You can insert a padlock through the designated holes when the valve is in the off position to prevent unauthorized or accidental re-pressurization, a key safety feature for maintenance.

According to the official Festo datasheet, this specific model is not designed for vacuum operation. It is intended for positive pressure applications ranging from 0 to 16 bar.

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Last Update: Friday, March 13, 2026