Confirm the exact configuration
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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Reference imageConfirm configuration by manufacturer part number.
Festo
161978
Proportional directional control valve MPYE-5-1/8-LF-420-B
The Festo 161978 is a 5/3-way closed piston gate valve featuring a nominal width of 4 mm, direct electrical control, and a hard sealing principle. This component operates within a pressure range of 0 bar to 10 bar, delivers a normal nominal flow rate of 350 l/min normalized to DIN 1343, and utilizes a 4–20 mA current type for setpoint and actual values with reverse polarity protection. It includes magnetic spring reset, can be mounted in any position, features a DC operating voltage range of 17 V to 30 V with 5% residual ripple, and defaults to a blocked mid-position upon power supply cable breakage. Submit the exact part number, quantity, and application requirements to request a quote.
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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
- Manufacturer
- Festo
- Part number
- 161978
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 161978.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Nominal width
- 4 mm
- Actuation type
- Electrical
- Sealing principle
- Hard
- Mounting position
- Any
- Structural design
- Piston gate valve
- Reset method
- Magnetic spring
- Safety instructions
- MPYE safety position: if the power supply cable breaks, the blocked mid- | position is approached.
- Type of control
- directly
- Flow direction
- Non-reversible
- Valve function
- 5/3-way, closed
- Reverse polarity protection
- For setpoint
- Operating pressure
- 0 MPa...1 MPa | 0 bar...10 bar
- b-value
- 0.12
- C value
- 1.65 l/sbar
- Normal nominal ow rate (normalized to DIN 1343)
- 350 l/min
- Cut-off frequency
- 95 Hz
- Max. hysteresis
- 0.4 %
- DC operating voltage range
- 17 V...30 V
- Residual ripple
- 5%
- Setpoint/actual values
- Current type 4–20 mA
- Certication
- RCM compliance mark
- KC characters
- KC-EMV
- CE marking (see declaration of conformity)
- As per EU EMC directive | As per EU RoHS directive
- UKCA marking (see declaration of conformity)
- To UK instructions for EMC | To UK RoHS instructions
- Operating medium
- Compressed air as per ISO 8573-1:2010 [6:4:4]
- Information on operating and pilot media
- Operation with oil lubrication not possible
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B2-L
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Technical verification
Our sourcing response is prepared against Festo 161978. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.