Product Description:
The SMC AR425 to AR935 series represents an internally pilot-operated, relieving-type air pressure regulator. Within this range, the AR825, AR835, AR925, and AR935 sub-series belong to the large-bore category, featuring port sizes that span from 1-1/4" up to 2". These regulators are specifically designed for use in central compressor stations, high-flow mains, and multi-station centralized air supply systems.
The pilot-operated mechanism utilizes the supply air itself to actuate the main valve. This design offers significantly improved outlet stability, a lower pressure drop even at high flow rates, and minimal outlet fluctuation despite varying inlet pressures. These advantages make it superior to direct-acting regulators in maintaining precise pressure control.
This product line includes 14 different part numbers, covering 1-1/4" and 1-1/2" sizes in the AR825 and AR835 models, which also have gauge-equipped (G) versions. Additionally, there are 2" AR925 and AR935 models, including G versions, along with 2" X218 semi-standard special configuration options.
Regarding pressure adjustment, the high-pressure variants (25: AR825/AR925) can be adjusted from 0.05 to 0.83 MPa. Meanwhile, the low-pressure precision variants (35: AR835/AR935) adjust from 0.02 to 0.2 MPa. This range effectively covers both general pneumatic systems and specialized low-pressure precision applications such as electronics, coating, and laboratory air supply.
Features:
The product features large bore ports measuring 1-1/4", 1-1/2", and 2", designed for mains and multi-drop centralized supply systems. These sizeable ports ensure efficient and reliable flow for various industrial applications.
It incorporates an internal pilot relieving mechanism that automatically releases excess outlet pressure to the atmosphere. This feature helps maintain safe and stable pressure levels without manual intervention.
Two distinct pressure ranges are available: a high-pressure range from 0.05 to 0.83 MPa, and a low-precision range from 0.02 to 0.2 MPa. This allows users to select the appropriate pressure control based on their system requirements.
The body is made from die-cast aluminum, offering durability and resistance to harsh plant environments. The weight varies by model: the AR825/835 series weighs approximately 2.5 kg, while the AR925/935 series weighs around 4.5 kg.
Units with the G-suffix come equipped with a panel pressure gauge from the G46 series, providing clear and convenient local pressure readings. This addition enhances operational monitoring and control.
The X218 suffix indicates an SMC semi-standard special configuration. Customers are advised to confirm the exact specifications of these units with our sales team to ensure compatibility with their applications.
A locking screw is installed on the adjusting handle to prevent accidental tampering after the pressure has been set. This feature safeguards the settings and maintains system stability.
Various thread options are available upon request, including Rc (PTF), NPT (F), and G threads. This flexibility allows customization to fit different piping standards and installation preferences.
Technical Parameters:
| Proof Pressure |
1.5 MPa |
| Pressure Gauge Port |
1/4" |
| Body Material |
Die-cast Aluminum |
| Ambient / Fluid Temperature |
-5 To 60°C |
| Max. Operating Pressure |
1.0 MPa |
| Fluid |
Air |
Applications:
Central compressor stations play a crucial role in managing the pressure reduction of main air lines. They ensure that compressed air is delivered consistently and efficiently throughout the facility.
Facilities often rely on high-flow compressed air mains combined with a plant-wide centralized air supply system. This arrangement provides a steady and reliable source of compressed air to various departments and equipment.
Automated processes benefit greatly from multi-station assembly, packaging, and conveying lines. These systems enhance productivity by streamlining operations and reducing manual labor.
In many industrial applications, pneumatic manipulators, large bore cylinders, and clusters of pneumatic grippers are utilized. These components offer precise control and powerful operation for handling materials and performing tasks.
Spray booths, air blow-off stations, and high-volume process air points are essential for maintaining product quality and cleanliness in manufacturing environments. They help remove contaminants and ensure proper finishing.
Heavy industries such as mining, metallurgy, cement production, and power plants depend heavily on robust pneumatic systems. These industries require durable and efficient solutions to meet demanding operational requirements.
Additionally, original equipment manufacturer (OEM) machines in sectors like textile, printing, paper, and packaging benefit from specialized pneumatic equipment. These tailored systems improve the performance and reliability of various manufacturing processes.
Support and Services:
For technical support and services regarding SMC Solenoid Valves, please refer to the product manuals and datasheets available on our website. Our technical support team is equipped to assist with installation guidance, troubleshooting, maintenance tips, and product specifications to ensure optimal performance.
We offer comprehensive after-sales services including repair, replacement, and calibration of solenoid valves to maintain their efficiency and longevity. Our experts can help you select the right valve for your application and provide advice on system integration.
Additionally, training sessions and workshops are available to help your team understand the operation and maintenance of SMC Solenoid Valves. For detailed technical inquiries, please consult the FAQ section or reach out through the official support channels provided on the SMC website.
Packing and Shipping:
Each SMC Solenoid Valve is carefully packaged to ensure maximum protection during transit. The valves are securely placed in custom-fitted foam inserts within sturdy cardboard boxes to prevent any damage from shocks or vibrations. Additionally, moisture-resistant materials are used to protect the product from humidity and corrosion.
For bulk orders, solenoid valves are individually wrapped and arranged in reinforced cartons with clear labeling for easy identification. All packages include detailed product information and handling instructions to ensure safe and proper use upon delivery.
Shipping is carried out using reliable carriers with tracking options available to provide real-time updates. We offer various shipping methods to accommodate different delivery timelines, including standard, expedited, and express services. Special care is taken for international shipments to comply with customs regulations and ensure timely arrival.
At every stage, from packaging to shipping, we prioritize the integrity and quality of the SMC Solenoid Valves to guarantee customer satisfaction.
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