MS4-LFR-1-4-D7-CRM-AS-Z Festo Filter Regulator

$ 68.75

G1/4 filter regulator, 5 µm grade, 1200 l/min flow. Features 0.5-12 bar regulation, manual rotating drain, and rotary knob with detent lock.

SKU Festo-529153 Category
Filter regulators

MS4-LFR-1/4-D7-CRM-AS-Z Festo Filter regulator

Model Identifier MS4-LFR-1/4-D7-CRM-AS-Z
Official Part Number 529153
GTIN Standard 4052568084875

Technical Overview

The MS4-LFR-1/4-D7-CRM-AS-Z is a high-performance filter regulator from Festo's MS series, designed for industrial compressed air preparation. It provides a standard nominal flow rate of 1200 l/min with a 5 µm filtration grade. This unit features a pressure regulation range of 0.5 to 12 bar, an integrated analog pressure gauge, and a manual rotating condensate drain. Constructed with a die-cast aluminium housing and a plastic bowl guard, it offers secondary venting and a return flow function to ensure constant output pressure and reliable pneumatic performance.

Key Features

  • Rotary knob actuator lock with detent
  • Manual rotating condensate drain
  • Integrated analog pressure gauge
  • Secondary venting function
  • Return flow function included
  • Plastic bowl guard for safety
  • Vertical +/-5° mounting position
  • RoHS-compliant materials

Standard nominal flow rate of 1200 l/min with a 5 µm filtration grade and constant output pressure regulation.

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 range0.5 bar ... 12 bar
Max. pressure hysteresis0.25 bar
Standard nominal flow rate (standardised to DIN 1343)1200 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. Safety-Critical Valve Terminal Supply

Serves as the primary air preparation unit for pilot-operated valve manifolds in automated packaging lines, ensuring both air cleanliness and safety compliance.

Problem Solved

Standard regulators trap downstream pressure during Emergency Stops, creating hazardous stored energy. Additionally, standard 40µm filters allow fine particles that jam sensitive pilot valve spools.

Return flow function5 µm filtrationSecondary venting1200 l/min flow

2. CNC Spindle Seal Purge System

Provides a regulated, clean air barrier to the labyrinth seals of high-speed machining spindles to prevent coolant and chip ingress.

Problem Solved

Contaminants in shop air or insufficient purge pressure can ruin expensive spindle bearings. The 5µm filter removes fine dust, while the regulator maintains constant positive pressure despite line fluctuations.

0.25 bar hysteresis5 µm filtrationConstant output pressureDie-cast aluminium housing

3. Precision Force Control for Electronics Grippers

Regulates operating pressure for end-of-arm tooling (EOAT) on pick-and-place robots handling fragile electronic components.

Problem Solved

Fluctuating plant air pressure causes grippers to crush delicate parts. This unit steps down high input pressure (up to 14 bar) to a stable, low range (0.5-12 bar) to ensure consistent, non-destructive grip force.

Pressure regulation range 0.5-12 barG1/4 PortManually rotating drainMS4 Series

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