Festo VPPM-6F-L-1-F-0L2H-A4N Pressure Regulator

Technical Overview

The Festo VPPM-6F-L-1-F-0L2H-A4N (part number 542248) is a highly precise proportional-pressure regulator featuring a piloted diaphragm design with multi-sensor cascade control. It accepts an electrical analog setpoint (4-20 mA) to stably regulate pneumatic pressure between 0.02 and 2 bar. Equipped with an integrated pressure sensor, mechanical spring reset, and LED display, this VPPM series valve delivers a standard nominal flow rate of 380 L/min. It supports an operational voltage of 24V DC and requires 6 mm supply / 4.5 mm exhaust nominal sizing. Engineered for reliable process automation, it includes reverse polarity and short circuit protection.

Key Features

Multi-sensor control (cascade control) for superior regulation stability
Piloted diaphragm regulator design with a mechanical spring reset
4-20 mA analog input and output signal range
Standard nominal flow rate of 380 L/min
Integrated LED display for local status and diagnostics
Failsafe safety position: maintains unregulated output pressure if power is interrupted
Built-in reverse polarity and short-circuit protection for all electrical connections

Technical Specification Matrix

Parameter	Value
Nominal Size (Supply)	6 mm
Nominal Size (Exhaust)	4.5 mm
Type of Actuation	Electric
Design	Piloted diaphragm regulator
Valve Function	3-way proportional pressure regulator
Standard Nominal Flow Rate	380 L/min
Pressure Regulation Range	0.02 - 2 bar (0.002 - 0.2 MPa)
Inlet Pressure	0 - 4 bar
Operational Voltage Range DC	21.6 - 26.4 V
Max. Current Consumption	300 mA
Max. Electrical Power Consumption	7 W
Signal Range (Analogue Input/Output)	4 - 20 mA

Industrial Applications

1. Microfluidic Pressure Delivery in Medical Device Manufacturing

Medical device production processes often demand delicate and stable pressurized gas flow to actuate fluid dispensing lines. Using the precise 0.02 to 2 bar range and multi-sensor cascade control, engineers can apply highly accurate, low-pressure gas to push micro-liter volumes of reagents without over-pressurizing delicate fluid pathways.

Problem Solved

Prevents pneumatic over-pressurization and eliminates pressure fluctuations in sensitive liquid dosing operations, ensuring consistent reagent dispensing.

MicrofluidicsLow-pressure regulationMulti-sensor cascade controlMedical device manufacturingReagent dispensing

2. Web Tensioning Control in Paper and Packaging Machines

In continuous web handling systems, maintaining precise web tension is critical to prevent material tearing or sagging. The proportional pressure regulator dynamically adjusts the pneumatic dancer roll cylinders. With its fast-responding 4-20 mA input and 380 L/min flow rate, it instantly compensates for machine speed variations or load changes.

Problem Solved

Eliminates web breaks or wrinkling by providing instantaneous and precise pneumatic adjustment to tensioning cylinders during high-speed rolling.

Web tension controlPneumatic dancer roll4-20 mA analog controlDynamic pressure adjustmentPackaging automation

3. Precise Force Control for Robotic Gripping of Fragile Components

Automated robotic arms handling fragile components, such as glass vials or electronic wafers, require strict gripping force limits to prevent crushing. The 0.02-2 bar low-pressure output allows fine tuning of pneumatic grippers, mapping the precise 4-20 mA setpoint to the exact closing force required.

Problem Solved

Replaces inaccurate mechanical regulators with digital analog-controlled precision to prevent part breakage caused by excessive pneumatic cylinder gripping force.

Robotic grippingForce controlPneumatic automationFragile component handlingProportional valve