ms4n-lr

Name: ms4n-lr
Brand: FESTO
SKU: ms4n-lr

The Festo MS4N-LR pressure regulator ensures precise control with low hysteresis and high flow rates. It features a lockable rotary knob and is suitable for filtered compressed air applications.

Product Modelms4n-lr

Material Number527691

Product ID9581

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
High Flow Rate with Minimal Pressure DropThe MS4N-LR pressure regulator delivers high flow rates while maintaining minimal pressure drop, making it efficient for various industrial applications.
2
Low Hysteresis and Primary Pressure CompensationThis regulator boasts good control characteristics with low hysteresis and primary pressure compensation, ensuring stable and precise pressure regulation.
3
Lockable Rotary KnobThe lockable rotary knob secures setting values, providing reliable operation and easy maintenance. This feature is particularly useful in applications where consistent pressure settings are crucial.
4
Versatile Fitting OptionsThe MS4N-LR offers two pressure gauge connections for different fitting options, allowing for flexible installation and integration into various systems.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Size

Series

Actuator lock

Rotary knob with detent Rotary knob with integrated lock can be closed with accessories

Mounting position

Any

Structural design

Pressure regulator with pressure gauge

Controller function

Outlet pressure constant With secondary exhausting With return flow function

Corrosion ResistanceConstructed with components requiring moderate corrosion resistance, the MS4N-LR is designed to withstand normal industrial environments and media like coolants or lubricating agents.

Pressure gauge

G1/4 prepared G1/8 prepared with pressure sensor with pressure gauge

Operating pressure

0.8bar 14bar

Pressure regulation range

0.3bar 12bar

Max. pressure hysteresis

3.625psi

Standard nominal flow rate

1000l/min 2200l/min

Certification

c UL us - Recognized (OL)

CE marking (see declaration of conformity)

as per EU explosion protection directive (ATEX)

Explosion prevention and protection

Zone 1 (ATEX) Zone 2 (ATEX) Zone 21 (ATEX) Zone 22 (ATEX)

ATEX category gas

II 2G

ATEX category for dust

II 2D

Type of ignition protection for gas

Ex h IIC T6 Gb X

Type of (ignition) protection for dust

Ex h IIIC T60°C Db X

Explosive ambient temperature

-10°C <= Ta <= +60°C

Operating medium

Compressed air as per ISO 8573-1:2010 [7:4:4] Inert gas

Information on operating and pilot media

Operation with oil lubrication possible (required for further use)

Corrosion resistance class (CRC)

2 - Moderate corrosion stress

LABS (PWIS) conformity

VDMA24364-B1/B2-L

Storage temperature

-10°C 60°C

For use in the food industry

See supplementary material information

Temperature of medium

-10°C 60°C

Ambient temperature

-10°C 60°C

Product weight

225g

Type of mounting

Optionally: Front panel mounting Line installation With accessories

Note on materials

RoHS-compliant

Material of sub-base

Die-cast aluminum

Seals material

NBR

Housing material

Die-cast aluminum

Diaphragm material

NBR

Manufacturer ID

527691