ms4-lr-1/4-d5

Name: ms4-lr-1/4-d5
Brand: FESTO
SKU: ms4-lr-1/4-d5

Short Description: The Festo MS4-LR-1/4-D5 is a high-precision pressure regulator designed for compressed air applications. It features a directly actuated diaphragm, rotary knob with detent actuator lock, and optional mounting positions. Suitable for use with food and offering moderate corrosion resistance, this regulator ensures consistent output pressure and secondary venting.

Product Modelms4-lr-1/4-d5

Material Number589482

Product ID15216

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
Precise Pressure ControlThe MS4-LR-1/4-D5 offers a pressure regulation range of 0.3 to 4 bar, ensuring consistent output pressure in various applications.
2
Directly Actuated Diaphragm DesignThis design provides fast and accurate pressure regulation, making it ideal for applications requiring precise control.
3
Rotary Knob with Detent Actuator LockThe rotary knob with detent actuator lock ensures easy and secure operation, preventing accidental changes in pressure settings.
4
Optional Mounting PositionsThe regulator can be mounted either on the front panel or in-line, offering flexibility in installation options to suit different application requirements.
5

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

Mounting position

Any

Structural design

Directly controlled diaphragm regulator

Controller function

Outlet pressure constant With secondary exhausting With return flow function

Secondary Venting FunctionThe secondary venting feature allows for efficient pressure regulation by preventing pressure buildup, ensuring safe and reliable operation.

Suitable for Food UseThe MS4-LR-1/4-D5 is suitable for use with food, making it a reliable choice for applications in the food processing industry where hygiene and safety are paramount.

Moderate Corrosion ResistanceWith a corrosion resistance class of CRC 2, this regulator can withstand moderate corrosion stress, ensuring long-term reliability in various environments.

Operating Temperature RangeThe regulator operates within a media temperature range of -10°C to 60°C, making it suitable for a wide range of applications in different environments.

Compliance with ISO StandardsThe MS4-LR-1/4-D5 operates with compressed air to ISO 8573-1:2010 [7:4:4] and inert gases, ensuring compatibility with international standards for air quality.

Lubricated Operation PossibleThe regulator can operate with lubricated compressed air, which is always required if lubricated operation is chosen, enhancing its durability and performance.

1Compact DesignWith a product weight of 225 grams, the MS4-LR-1/4-D5 is a compact and lightweight solution for pressure regulation, making it easy to integrate into various systems.

1RoHS CompliantThe regulator is RoHS-compliant, ensuring that it meets the requirements for the restriction of hazardous substances in the European Union, making it an environmentally friendly choice.

1Wide Flow Rate RangeThe standard nominal flow rate is 2100 l/min, making it suitable for a variety of applications requiring different flow rates.

1Pressure Gauge OptionsThe regulator can be equipped with either an analog or digital pressure gauge, providing flexibility in monitoring and control options.

1Long-Term ReliabilityWith its robust design and moderate corrosion resistance, the MS4-LR-1/4-D5 ensures long-term reliability and consistent performance in various applications.

Symbol

00991558

Pressure gauge

with pressure gauge

Operating pressure

0.8bar 14bar

Pressure regulation range

0.3bar 4bar

Max. pressure hysteresis

3.625psi

Standard nominal flow rate

2100l/min

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

Pneumatic connection 1

G1/4

Pneumatic connection 2

G1/4

Note on materials

RoHS-compliant

Material of sub-base

Die-cast aluminum

Material of operator panel

PA POM

Seals material

NBR

Housing material

Die-cast aluminum

Diaphragm material

NBR

Manufacturer ID

589482