MS4-LFR-1-4-D6-CRM-AS Festo Filter Regulator

$ 56.75

G1/4 filter regulator with 5 µm filtration and 1500 l/min flow rate. Features a 0.3-7 bar pressure range, manual drain, and integrated pressure gauge.

SKU Festo-529144 Category
Filter regulators

MS4-LFR-1/4-D6-CRM-AS Festo Filter regulator

Model Identifier MS4-LFR-1/4-D6-CRM-AS
Official Part Number 529144
GTIN Standard 4052568084820

Technical Overview

The MS4-LFR-1/4-D6-CRM-AS is a Size 4 MS series filter regulator from Festo, designed for precise pressure control and air filtration. This unit features a 5 µm filtration grade, a G1/4 pneumatic connection, and a manual rotating condensate drain. It is built with a die-cast aluminium housing and includes an integrated analog pressure gauge. The regulator function maintains constant output pressure with secondary venting and a return flow function, capable of delivering a standard nominal flow rate of 1500 l/min within a pressure regulation range of 0.3 to 7 bar.

Key Features

  • Rotary knob with detent (can be closed with accessories)
  • Vertical +/-5° mounting position
  • Manually rotating condensate drain
  • Filter regulator with pressure gauge
  • Plastic bowl guard
  • Secondary venting
  • Return flow function
  • RoHS-compliant materials

Standard nominal flow rate of 1500 l/min with a 5 µm filtration grade for efficient air preparation.

Technical Specification Matrix

ParameterValue
Size4
SeriesMS
Actuator lockRotary knob with detent can be closed with accessories
Mounting positionVertical +/-5°
Grade of filtration5 µm
Condensate drainManually rotating
DesignFilter regulator with pressure gauge
Max. condensate volume19 ml
Controller functionOutput pressure constant With secondary venting With return flow function
Bowl guardPlastic bowl guard
Degree of condensate separation>75 %
Symbol00991589
Pressure gauge (ANALOG) or Pressure display (DIGITAL)With pressure gauge
Operating pressure (MPa)0.08 MPa ... 1.4 MPa
Operating pressure (bar)0.8 bar ... 14 bar
Pressure regulation range0.3 bar ... 7 bar
Max. pressure hysteresis0.25 bar
Standard nominal flow rate1500 l/min
Operating mediumInert gases
Corrosion resistance class CRC2 - Moderate corrosion stress
LABS (PWIS) conformityVDMA24364-B1/B2-L
Storage temperature-10 °C ... 60 °C
Suitable for use with foodSee supplementary material information
Air purity class at outputCompressed air to ISO 8573-1:2010 [6:4:4]
Media temperature-10 °C ... 60 °C
Ambient temperature-10 °C ... 60 °C
Pore size<5 µm
Product weight275 g
Type of mountingWith accessories
Pneumatic connection, port 1G1/4
Pneumatic connection, port 2G1/4
Note on materialsRoHS-compliant
Material sub-baseDie-cast aluminium
Material control panelPA POM
Material sealsNBR
Material filterPE
Material housingDie-cast aluminium
Material membraneNBR
Material bowlPC
Material separating platePOM

Industrial Applications

1. Pneumatic Control for Vertical Form-Fill-Seal (VFFS) Food Packaging

Integration into the main air preparation assembly of a VFFS machine used for packaging snacks or dry powders. The unit regulates the operating pressure for the sealing jaw cylinders and the film drive mechanism.

Problem Solved

Prevents food contamination and inconsistent sealing. Standard air supplies often contain particulates that compromise hygiene standards in food zones. Furthermore, pressure fluctuations can cause the heat-sealing jaws to apply uneven force, resulting in leaking packages.

Filtration grade 5 µmISO 8573-1:2010 [6:4:4]Pressure regulation 0.3 ... 7 barFood industry suitabilityCRC 2 Corrosion Resistance

2. Air Preparation for Electronics SMT Pick-and-Place Machines

Installed as the point-of-use filter regulator for Surface Mount Technology (SMT) assembly cells. It conditions the air supply for miniature vacuum generators and high-speed solenoid valves that handle delicate electronic components.

Problem Solved

Protects sensitive miniature pneumatics from failure. In electronics assembly, even microscopic pipe scale or dust (protected against by the 5 µm filter) can clog the tiny orifices of pilot valves or vacuum ejectors, causing dropped components or machine downtime.

Standard nominal flow rate 1500 l/minSize 4 (Compact Grid)Max. pressure hysteresis 0.25 barOperating medium Inert gasesPore size <5 µm

3. Precision Force Control for Robotic End-of-Arm Tooling (EOAT)

Mounting on the base of a robotic cell to regulate the grip force of pneumatic grippers handling fragile objects (e.g., glass vials or plastic housings). The unit ensures the grippers actuate with specific, repeatable force.

Problem Solved

Eliminates product damage due to excessive gripping force. By utilizing the 'D6' pressure range (0.3 to 7 bar), engineers can dial in a lower, precise pressure (e.g., 2.5 bar) to grip fragile items gently, while the high flow rate (1500 l/min) ensures the gripper closes instantly to maintain cycle times.

Pressure regulation range 0.3 ... 7 barController function Output pressure constantFlow rate 1500 l/minProduct weight 275 gReturn flow function

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