Ari-Safe Safety Valves

The ARI-Safe Safety Valves, a product of ARI Armaturen, are designed for effective pressure relief in a wide range of industrial applications, safeguarding equipment and ensuring operational safety. These valves comply with stringent international standards, such as DIN EN ISO 4126-1, PED, TRD421, and AD2000-A2, ensuring they meet industry regulations for safety and performance. The ARI-Safe series offers robust solutions, ideal for systems handling high-pressure steam, gases, and liquids.

These valves come in a variety of sizes from DN 15 to DN 250, supporting pressures between PN16 to PN40 or ANSI Class 150 and 300. Their operational temperature range is from -10°C to +450°C, making them suitable for demanding conditions such as steam and thermal oil systems. ARI-Safe valves are available in several material options, including cast iron, ductile iron, cast steel, and stainless steel, providing the corrosion resistance and durability required for prolonged use in industrial environments.

Key Features

  • Type-Tested: ARI-Safe Safety Valves are rigorously tested and certified under TÜV standards, with approvals such as TÜV▪SV▪…-663▪D/G/F, ensuring reliability in critical pressure relief applications.
  • Wide Application Range: Suitable for use with gases, vapours, and liquids, making them ideal for diverse industrial applications, including petrochemical plants, steam systems, and hot water circuits​.
  • Precision Engineering: The valves feature a direct spring-loaded mechanism that ensures precise response under pressure variations. The wear-resistant seat and disc design provide reliable sealing and extend the lifespan of the valves, minimising maintenance and downtime​.
  • Material Versatility: Available in a range of materials, including EN-JL 1040 (cast iron), EN-JS 1049 (ductile iron), 1.0619+N (cast steel), and 1.4408 (stainless steel), the ARI-Safe valves offer excellent corrosion resistance and mechanical strength. This material flexibility allows the valves to be used in highly corrosive environments or where high-temperature applications are needed​.
  • Soft Sealing Option: For applications requiring a higher level of sealing, ARI-Safe valves offer an optional soft sealing disc. This option enhances leak tightness, making the valves suitable for critical fluid systems such as chemical processing and oil refineries​
  • Proximity Switch Compatibility: Optional proximity switches can be integrated for enhanced monitoring and automation, providing real-time feedback and alerts to control systems. This feature is valuable for modern, automated industrial environments​.
  • Balanced Piston Design: The valve’s balanced piston and stainless-steel bellows provide additional protection against backpressure, ensuring the valve maintains accurate function even in systems with fluctuating pressures. The bellows also protect internal components from dirt and corrosion, enhancing the valve's longevity​

  • Removable List Aid: Standard in stainless steel variants, this feature simplifies maintenance, making inspections and repairs quicker and more efficient, which is vital in critical process applications​

Technical Specifications

  • Size Range: DN 15 to DN 250 (equivalent to ½" to 10")
  • Pressure Ratings: PN16 to PN40, ANSI Class 150, and 300
  • Temperature Range: -10°C to +450°C for general models; special variants can handle lower temperatures down to -29°C and higher temperatures up to +427°C​.
  • Body Material: Options include:
    • EN-JL 1040 (Cast Iron)
    • EN-JS 1049 (Ductile Iron)
    • 1.0619+N (Cast Steel)
    • 1.4408 (Stainless Steel)
  • Approval Standards: TÜV, PED, AD2000-A2, ASME Code Section VIII-Division 1 with UV and NB-stamps​

Applications

ARI-Safe Safety Valves are engineered for use in high-performance systems such as:

  • Steam Systems: Ideal for boilers, steam generators, and other high-temperature applications.
  • Thermal Oil Systems: Providing pressure relief in high-temperature heat transfer circuits.
  • Petrochemical Plants: Suitable for handling gases, liquids, and steam in refineries and chemical plants​
    These safety valves are a critical component in preventing overpressure scenarios, ensuring that your system operates within safe parameters. With their durable design, range of material options, and ability to handle harsh environments, ARI-Safe Safety Valves are a reliable choice for protecting your industrial equipment and processes.

To explore the complete range of ARI-Safe Safety Valves and find the right solution for your application, click here.