✅ Soft-sealing, maintenance-free design
✅ Optimized Zeta-values for excellent flow characteristics
✅ Double stem sealing for maximum leak protection
✅ DVGW-certified for drinking water applications (EPDM version)
✅ Fully insulated design possible (Energy Saving Order - EnEV)
✅ Available with notch lever, worm gear, or electric/pneumatic actuation
Technical Specifications
Valve Types & Configurations
- ARI-ZIVA®-Z (Wafer Type) – Butterfly valve with elongated eyelets
- ARI-ZIVA®-G (Lug Type) – Butterfly valve with threaded eyelets, suitable for pipe-end applications
Material Options
| Component | Material |
|---|---|
| Body | EN-GJS-400-15 (Ductile Iron), EN-JS1030 |
| Seat | EPDM (-10°C to +130°C), NBR (-10°C to +80°C), FPM (0°C to +150°C) |
| Disc | Stainless Steel 1.4581 / CuAl10Fe5Ni5-C (Optional for DN40-500) |
| Stem | X20Cr13+QT (1.4021+QT) / X6CrNiMoTi17-12-2 (1.4571 for DN ≤ 300) |
Pressure & Temperature Ratings
- Nominal Pressure Ratings: PN6, PN10, PN16
- Max Differential Pressure:
- 16 bar (DN25-150)
- 10 bar (DN200-600)
- Flange Connections: DIN EN 1092-1
- Leakage Test Compliance: DIN EN 12266-1 (Leakage Rate A)
- Drinking Water Certification: DVGW (EPDM) NW-6201BQ0460
