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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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Festo
187351
Proportional pressure control valve MPPES-3-1/8-2-420
The Festo 187351 is a directly controlled piston regulator featuring a soft sealing principle and an electrical actuation type with a nominal operating voltage of 24 V DC across an operating voltage range of 18 V to 30 V. This 3-way proportional pressure control valve closed offers a 3 mm nominal width for pressurization, a 2 mm exhaust nominal width, an operating pressure of 4 bar, and a pressure regulation range of 0 bar to 2 bar with a maximum pressure hysteresis of 0.01 bar. Designed with short-circuit and reverse polarity protection for all electrical connections, the unit operates with a 220 ms on-switching time and a 410 ms off-switching time while maintaining a safety position where outlet pressure drops to 0 bar if the power supply cable breaks. Submit the exact part number, quantity, and application requirements to request a formal quote for this component.
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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
- 187351
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 187351.
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 pressurization
- 3 mm
- Exhaust nominal width
- 2 mm
- Actuation type
- Electrical
- Sealing principle
- Soft
- Mounting position
- Any
- Structural design
- Directly controlled piston regulator
- Short-circuit protection
- For all electrical connections
- Safety instructions
- MPPES safety position: if the power supply cable breaks, the outlet | pressure will drop to 0 bar.
- Reverse polarity protection
- for all electrical connections
- Valve function
- 3-way proportional pressure control valve closed
- Operating pressure
- 0.4 MPa | 4 bar
- Pressure regulation range MPa
- 0 MPa...0.2 MPa
- Pressure regulation range
- 0 bar...2 bar
- Inlet pressure 1
- 3 bar...4 bar
- Inlet pressure 1 MPa
- 0.3 MPa...0.4 MPa
- Max. pressure hysteresis
- 0.001 MPa | 0.01 bar
- Switching time off
- 410 ms
- On switching time
- 220 ms
- DC operating voltage range
- 18 V...30 V
- Nominal operating voltage DC
- 24 V
- Residual ripple
- 10%
- Setpoint/actual values
- Current type 4–20 mA
- 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)
- Certication
- RCM compliance mark
- KC characters
- KC-EMV
- CE marking (see declaration of conformity)
- As per EU EMC directive | As per EU RoHS directive
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 187351. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.