Industrial Valves
Heavy-Duty Wafer Type | DN50 - DN600 | OEM / Mining / Slurry Service
ZNX industrial-grade butterfly valves are engineered for the most demanding service: mining tailings, mineral slurry, paper stock, cement plants and OEM skid packages. A reinforced ductile iron body, a ductile-iron (Ni-plated) or SS316 disc and a multi-layer EPDM seat provide reliable shut-off even under continuous abrasive flow and high cycle duty.
Available with lockable lever, gearbox, pneumatic or electric actuator. The integrated ISO 5211 mounting flange accepts any quarter-turn actuator without bracket. All sizes are 100% shell- and seat-tested before shipment.
Technical Specifications
| Size Range | DN50 - DN600 (2" - 24") |
| Pressure Rating | PN10, PN16, ANSI 150 |
| Body Material | Ductile Iron GJS400-18 / GJS500-7, fusion epoxy coated |
| Disc Material | SS316, Ductile Iron Ni-plated, Al-Bronze |
| Seat Material | EPDM, NBR, Viton (FKM), Natural Rubber |
| Stem Material | SS420, SS316, 17-4PH |
| Connection | Wafer, Lug, Double Flanged |
| Operation | Lockable Lever, Gearbox, Electric / Pneumatic Actuator |
| Working Temp. | -20°C to +160°C (Viton), -20°C to +120°C (EPDM) |
| Standard | API 609, EN 593, MSS SP-67 |
| Face to Face | ISO 5752 Series 13/14, API 609 |
| Testing | API 598, EN 12266, 100% hydrostatic |
Key Features
- Heavy-duty ductile iron body for high-pressure abrasive service
- Reinforced multi-layer EPDM/NBR seat, field-replaceable
- Lockable 10-position lever handle with detent plate
- ISO 5211 top flange for direct actuator mounting
- Bi-directional sealing, suitable for dead-end (lug type)
- Epoxy coated inside and out for corrosion protection
- Suitable for OEM skid packages and underground mining
Applications
- Mining and mineral processing (slurry, tailings, concentrate)
- Cement plants and aggregate handling
- Paper and pulp stock lines
- Power plant ash handling and FGD systems
- Iron and steel processing
- Bulk chemical transfer
- OEM skid packages and pump stations