Festo MS4-LR Pressure Regulator (Order Code: 527690) - Image 1

Festo MS4-LR Pressure Regulator (Order Code: 527690) - Image 2

Festo MS4-LR Pressure Regulator (Order Code: 527690)

Festo MS4-LR Pressure Regulator (Order Code: 527690) - Image 3

Festo MS4-LR Pressure Regulator (Order Code: 527690) - Image 4

Festo MS4-LR Pressure Regulator (Order Code: 527690)

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Category: FESTO

Festo MS4-LR Pressure Regulator (Order Code: 527690)

Product Overview

The Festo MS4-LR is a high-precision pneumatic pressure regulator belonging to Festo’s MS4 series of air preparation components, engineered to stabilize and adjust compressed air pressure for industrial automation systems. Designed for medium-flow pneumatic circuits, this regulator ensures consistent pressure supply to downstream devices such as valves, cylinders, and grippers, preventing pressure fluctuations that could compromise actuator performance or system reliability. Its modular design enables seamless integration with other MS4 series components (filters, lubricators) to form a complete air preparation unit, making it ideal for applications in automotive manufacturing, packaging machinery, and electronic assembly lines.

Product Dimensions

Parameter	Specification
Overall Width	40 mm
Overall Height	125 mm
Overall Depth	98 mm
Inlet/Outlet Port Size	G1/4
Pressure Gauge Port Size	G1/8
Mounting Hole Pitch	30 mm (widthwise) × 85 mm (depthwise)
Mounting Compatibility	Panel mounting; compatible with Festo MS4 series base plates and modular air preparation assemblies

Main Functions

Precision Pressure Adjustment & Stabilization
- Reduces and regulates inlet compressed air pressure to a preset outlet pressure, with an adjustment range of 0.5–10 bar. The regulator maintains stable outlet pressure even when inlet pressure fluctuates (max inlet pressure: 16 bar) or downstream air consumption varies, ensuring consistent performance of pneumatic actuators.
- Features a locking adjustment knob to prevent accidental pressure changes, enhancing system safety and operational consistency in high-vibration industrial environments.
Modular Air Preparation Integration
- Can be combined with Festo MS4 series filters (MS4-LF) and lubricators (MS4-LO) to create a customized air preparation unit, eliminating the need for separate piping and simplifying system layout. The modular connection design enables tool-free assembly and disassembly for maintenance or reconfiguration.
- Compatible with Festo pressure gauges and pressure switches for real-time pressure monitoring and feedback, enabling closed-loop pressure control when integrated with a PLC.
Pressure Relief & Protection
- Incorporates a built-in relief valve that automatically vents excess air if the outlet pressure exceeds the preset value, protecting downstream components from overpressure damage. This function is critical for sensitive pneumatic devices with strict pressure tolerance limits.

Technical Features

High-Precision & Reliable Performance
- Delivers excellent pressure regulation accuracy with a repeatability of ±0.1 bar and a hysteresis of ≤0.2 bar, ensuring minimal pressure deviation even under dynamic flow conditions.
- Adopts a balanced poppet valve design that minimizes the impact of inlet pressure fluctuations on outlet pressure stability, suitable for both constant and variable flow applications.
- Supports a maximum flow rate of 1200 L/min (at 6 bar outlet pressure), meeting the air demand of medium-sized pneumatic circuits with multiple actuators.
Robust Industrial Construction
- Housing Material: Die-cast aluminum alloy with a corrosion-resistant powder coating, providing durability and resistance to mechanical shock, vibration, and ambient moisture. Internal components are made of brass and reinforced polymer to ensure long service life.
- Sealing System: Nitrile rubber (NBR) seals for reliable airtightness; optional fluorocarbon rubber (FKM) seals are available for applications involving aggressive media or extreme temperatures.
- Protection Class: IP65 (front side), protecting the regulator from dust, water spray, and oil contamination in harsh manufacturing environments.
- Operating Temperature Range: -10 °C to +60 °C, enabling stable operation in temperature-variable industrial settings.
Energy Efficiency & Compliance
- Low pressure drop design minimizes energy loss during pressure regulation, reducing overall compressed air consumption and operational costs.
- Fully compliant with international standards including ISO 8573-1 (pneumatic air quality), CE, and RoHS, ensuring global market compatibility and adherence to environmental regulations.
- Meets Festo’s strict quality control standards, with each unit undergoing pressure tightness and performance testing before factory shipment.

Weight

The net weight of the Festo MS4-LR pressure regulator (order code 527690) is approximately 0.62 kg, making it lightweight and easy to handle during installation, maintenance, and system configuration.

WHO WE ARE

About us

Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.

Atifts Technology Co., Ltd. @ 2024

Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers. Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.

With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.

Where is your company located?

We are located next to Shanghai, the largest city in China, and Kunshan, the first economic county in China. With convenient transportation and developed logistics, it provides a good geographical advantage for our electronic components sales business.

What types of electronic components does your company mainly sell?

We are committed to providing many types and brands of electronic components, including but not limited to Sensors, Switches & Relays, Connectors, Circuit Protectio, Power Supplier & Cable, etc. We have established relationships with many well-known electronic component manufacturers. We have established long-term and stable relationships with many well-known electronic component manufacturers to ensure that the products we sell are of reliable quality and reasonable price.

What are the prices of your products?

Our product prices vary according to market conditions and product models. We are committed to providing high quality electronic components at fair and reasonable prices, and offer our customers a variety of incentives and flexible purchasing methods.

How to purchase your electronic components?

You can contact our customer service staff directly by phone, whatsapp, email, our official website. We support a variety of payment methods, and provide you with fast and safe logistics and distribution services.

How do you guarantee the quality of your products?

We attach great importance to product quality, all the electronic components we sell come from regular channels and undergo strict quality testing. We promise to provide customers with high-quality electronic components, and provide perfect after-sales service to ensure that customers have no worries in the process of use.

If I am not satisfied with the electronic components I purchased, can I return them?

We provide perfect after-sales service, if you are not satisfied with the purchased electronic components, you can return or exchange them within the specified time. Please refer to our official website or consult our customer service staff for the specific return policy and process.

Can your company provide technical support and solutions?

We have a professional technical team that can provide technical support and solutions for our customers. Whether you encounter any problems in choosing or using the products, we will be happy to answer your questions and provide professional technical support.

How to contact your customer service?

You can contact our customer service personnel through the online customer service system on our official website, telephone, e-mail or social media platforms. Our customer service staff will provide you with professional services and answer any questions you may have.

Does your company often organize promotional activities?

In order to give back to our customers, we will organize various promotions from time to time, including discounts, full reductions, giveaways and so on. Please keep an eye on our official website or social media platforms to stay up-to-date with the latest promotions.