Rc2" Air Pressure Regulator with Low Pressure Precision Range 0.02 to 0.2 MPa and Semi-Standard X218 Configuration

Product Description:

The SMC AR425 to AR935 series features an internally pilot-operated, relieving-type air pressure regulator. Within this range, the AR825, AR835, AR925, and AR935 sub-series fall into the large-bore category, offering port sizes from 1-1/4 inches up to 2 inches. These regulators are specifically designed for demanding applications such as central compressor stations, high-flow main lines, and multi-station centralized air supplies.

The pilot-operated mechanism uses the supply air itself to actuate the main valve, resulting in significantly improved outlet stability. Compared to direct-acting regulators, this design achieves a lower pressure drop at high flow conditions and greatly minimizes outlet pressure fluctuations when the inlet pressure varies, ensuring consistent performance across varying operating conditions.

This product range includes 14 distinct part numbers, encompassing 1-1/4" and 1-1/2" AR825 and AR835 models (including gauge-equipped "G" versions), 2" AR925 and AR935 models (also including "G" versions), as well as 2" X218 semi-standard special configurations. There are two types based on pressure range: a high-pressure variant (designated 25, such as AR825/AR925), which adjusts from 0.05 to 0.83 MPa, and a low-pressure precision variant (designated 35, such as AR835/AR935), adjustable from 0.02 to 0.2 MPa. This extensive range caters to both general pneumatic systems and specialized low-pressure precision applications including electronics, coating processes, and laboratory air supplies.

Features:

The product features large bore ports measuring 1-1/4", 1-1/2", and 2" that are suitable for mains and multi-drop centralized supply systems. This design ensures efficient flow and connectivity in various industrial applications.

It utilizes an internal pilot relieving mechanism that automatically releases any excess outlet pressure to the atmosphere. This feature enhances safety and maintains stable pressure levels during operation.

There are two available pressure ranges to meet different requirements: a high range of 0.05 to 0.83 MPa, and a low precision range of 0.02 to 0.2 MPa. Users can select the appropriate range based on the precision needed for their application.

The body is made from die-cast aluminum, providing durability and robustness ideal for demanding plant environments. The weight is 2.5 kg for models AR825 and AR835, and 4.5 kg for models AR925 and AR935.

For convenience in monitoring, units with the G suffix come equipped with a panel pressure gauge from the G46 series. This allows clear and easy local reading of pressure levels.

Models with the X218 suffix represent SMC semi-standard special configurations. Customers are advised to consult with our sales team to confirm the exact specifications for these units.

A locking screw is incorporated on the adjusting handle to prevent any accidental tampering after the pressure settings have been made, ensuring consistent performance.

Additionally, various thread options such as Rc (PTF), NPT (F), and G threads are available upon request to accommodate different connection standards.

Technical Parameters:

Applications:

Central compressor stations play a crucial role in managing the pressure reduction along main air lines. These stations ensure that the compressed air pressure is regulated efficiently for optimal performance throughout the system.

The use of high-flow compressed air mains enables a plant-wide centralized air supply, facilitating consistent and reliable distribution of compressed air to various sections within industrial facilities.

Automated assembly, packaging, and conveying lines that operate across multiple stations rely heavily on centralized compressed air systems to maintain smooth and synchronized operations.

Pneumatic equipment such as manipulators, large bore cylinders, and clusters of pneumatic grippers are integral components in many manufacturing processes, providing precise and powerful motion control.

Applications including spray booths, air blow-off systems, and other high-volume process air points require substantial airflow, which is supported by robust compressed air infrastructure.

Heavy industries such as mining, metallurgy, cement production, and power generation utilize these compressed air solutions to enhance efficiency and maintain safety standards within demanding operational environments.

Additionally, original equipment manufacturer (OEM) machines used in textile, printing, paper, and packaging sectors benefit from tailored compressed air technologies to improve machine performance and product quality.

Support and Services:

Our SMC Solenoid Valves are designed to provide reliable and efficient control for a wide range of pneumatic applications. For technical support, we offer comprehensive assistance including product selection guidance, installation instructions, troubleshooting tips, and maintenance recommendations to ensure optimal performance and longevity of your solenoid valves.

We provide detailed product documentation, including datasheets, operation manuals, and wiring diagrams to help you understand the specifications and correct usage of each valve model. Our technical support team is equipped to assist with system integration and can recommend compatible components to enhance your pneumatic system.

In addition to support services, we offer customized solutions tailored to your specific application requirements. Our engineering team can work with you to design and modify solenoid valve configurations to meet unique operating conditions or performance criteria.

Regular maintenance services and replacement parts are available to keep your SMC solenoid valves operating smoothly. We also provide training sessions and workshops to help your staff gain a deeper understanding of valve operation and maintenance best practices.

Trust SMC for high-quality solenoid valves backed by expert technical support and comprehensive service offerings to maximize your system’s efficiency and reliability.

Packing and Shipping:

Each SMC Solenoid Valve is carefully packaged to ensure maximum protection during transit. The valves are placed in custom-fitted foam inserts within sturdy cardboard boxes to prevent any movement or damage. Anti-static bags are used for electronic components to avoid electrostatic discharge. All packaging materials are environmentally friendly and comply with international shipping standards.

For shipping, we offer multiple options including standard ground shipping, expedited air freight, and courier services to meet your delivery requirements. Each shipment is accompanied by a detailed packing list and certificate of conformity. Tracking information is provided once the order is dispatched to ensure timely and secure delivery of your SMC Solenoid Valves.