ARI-SAFE Safety Valve Features:
- Type: Full lift safety valve (D/G) and standard safety valve (F).
- Approvals: Type-test approved according to DIN EN ISO 4126-1, AD2000-A2, TRD 421, and more, with TÜV certifications.
- Design:
- Spring-loaded, direct-loaded safety valve.
- Wear-resistant seat/disc for enhanced longevity.
- Precision alignment of the disc and guide for smooth operation.
- Soft seal disc and options for EPDM or stainless steel bellows.
- Common thread types available for various applications.
Technical Specifications:
- Nominal Pressure:
- Available in PN16, PN25, PN40, and other ratings depending on the material and model.
- Material:
- Various materials such as EN-JL1040, EN-JS1049, 1.0619+N, and 1.4408 (stainless steel).
- X6CrNiMoTi17-12-2, 1.4571 for high-durability components like the seat and spindle guide.
- Temperature Range: From -60°C to +450°C, depending on the material used.
- Flange Connection: Standard DIN EN 1092-1 for various pressure classes.
Sizing and Application:
- Capacity: The valve's capacity depends on the medium (steam, air, water) and the set pressure.
- Medium Details: Calculations are based on the mass flow, molar mass, temperature, set pressure, and back pressure.
- Back Pressure: Can be superimposed (no back pressure allowed on request) or built-up (max. 10% from set pressure, higher on request).
Valve Sizes:
- Nominal Diameters (DN): Available from DN15 up to DN350, depending on the application.
- Spring Range: The valves are available in various spring ranges for different pressures, from 0.2 bar to 40 bar.
Additional Features:
- Lift Fork and Levers for operation.
- Bellows (optional) for sealing at high pressures.
- Balanced piston for some models.
- Sealing Rings: Pure graphite or CuFA materials for better sealing.
Applications:
- These valves are used in steam, air, and water systems and are ideal for pressure regulation in industrial systems.
- They are critical in maintaining safe operating pressures and preventing overpressure scenarios.