Product Overview
The FESTO MPPES-3-1/4-6-420 is a high-precision pneumatic proportional pressure regulator designed for closed-loop electro-pneumatic pressure control in demanding industrial automation systems. As a member of Festo’s MPPES series, this valve converts an analog electrical setpoint signal (0–10 V or 4–20 mA) into a continuously variable pneumatic output pressure, delivering proportional, stepless regulation rather than simple on/off switching. The integrated closed-loop control circuit compares the actual output pressure — measured by an internal pressure sensor — against the commanded setpoint, and adjusts the valve spool position accordingly, ensuring exceptional pressure stability independent of flow fluctuations or supply pressure variations. With a G1/4 threaded connection and a regulated output range of 0 to 6 bar (with a maximum supply pressure of 8 bar), the MPPES-3-1/4-6-420 is engineered for precise force control, tension regulation, and pressure profiling tasks in industrial machinery. Its compact, robust design and fast dynamic response make it an ideal choice for applications requiring accurate, repeatable pneumatic pressure modulation.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Proportional Pressure Regulator (Valve) |
| Model Designation | MPPES-3-1/4-6-420 |
| Manufacturer | FESTO |
| Pneumatic Connection | G1/4 (1/4″ BSPP) |
| Regulated Output Pressure Range | 0 to 6 bar |
| Maximum Supply Pressure | 8 bar (1 bar above max output) |
| Setpoint Input Signal | Analog 0–10 V / 4–20 mA (model-dependent) |
| Control Principle | Closed-loop electro-pneumatic proportional control with integrated pressure sensor |
| Mounting & Connection | Direct inline mounting, G1/4 threaded ports (supply, output, exhaust) |
| Operating Medium | Compressed air (filtered, lubricated or non-lubricated, 5 µm filtration recommended) |
| Electrical Connection | M12 plug / cable connection (per Festo standard) |
Engineering Features & Advantages
- Precision Performance: Closed-loop electro-pneumatic proportional control with integrated pressure sensor maintains a constant, precisely metered output independent of load pressure fluctuations, ensuring accurate, repeatable performance in demanding industrial circuits.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Precision-manufactured to original FESTO specifications for direct replacement, minimising downtime and eliminating fitment issues.
- Rated Capability: Rated for pressure ratings of 0 to 6 bar, supporting stable operation across the full working range.
Typical Industrial Applications
Its compact, robust design and fast dynamic response make it an ideal choice for applications requiring accurate, repeatable pneumatic pressure modulation.
PRODUCT IMAGES





FESTO MPPES-3-1/4-6-420 Pneumatic Proportional Pressure Regulator
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine FESTO MPPES-3-1/4-6-420 Proportional Pressure Regulator Valve. This Germany-made 24V DC hydraulic component features a proportional solenoid design, delivering precise, leak-free pressure control for heavy-duty industrial systems.