The ARI-ZESA is a high-quality, maintenance-free butterfly valve from ARI Armaturen, known for its soft sealing, nodular iron body, stainless steel disc, and double stem sealing, used across industries for controlling water (hot/cold/drinking/waste) and other fluids, offering excellent flow, insulation, and options for automation, featuring unique designs like curved or honeycomb discs for optimal performance and reduced turbulence, compliant with strict standards like DVGW for drinking water.
Key Features & Components
- Design: Wafer-type or lug-type, with elongated or threaded eyelets, often with a notch lever or for electric actuation (ARI-ZESA-E).
- Body: Ductile iron (EN-JS1030).
- Disc: Stainless steel (1.4581), often with a patented curved or HEXO honeycomb design for better flow.
- Sealing: Soft EPDM/NBR/FPM seat, double stem sealing with a profile ring and dew point barrier for increased safety.
- Bearing: Centric disc bearing, triple shaft bearing.
- Actuation: Manual lever, or compatible with electric actuators (AUMA).
- Certification: DVGW-registered for drinking water applications (DW6201BR0244).
Applications
- Heating, cooling, drinking, and process water systems.
- Waste water, swimming pools.
- Power stations and shipbuilding.
- Gas installations (with appropriate materials).
Benefits
- Maintenance-Free: Designed for longevity.
- Optimized Flow: Features like the curved/HEXO disc reduce turbulence, noise, and pressure loss, allowing for shorter downstream pipe lengths.
- Compact Systems: High Kvs values contribute to more compact installations.
- Safety: Blow-out protection, polygon shaft/disc connection, and superior sealing.
- Insulation: Can be fully insulated to meet energy efficiency standards.
