Butterfly valve WS112

for waterfor seawaterfor wastewater

Durable design for optimal performance The robust design of the valve minimizes pressure losses, making the WS112 ideal for handling large volumes of water. This series combines the highest technical standards with a flow-optimized design, ensuring efficiency and reliability in water supply and treatment. Robust and durable under harsh conditions The double eccentric design of the WS112 reduces friction, extending the service life of components—even in demanding applications with extended maintenance intervals. Featuring a seal-on-disc design, this valve ensures a bidirectional, leakage-free seal. Available in double-flange configuration, the WS112 also features an innovative polygon shaft profile, optimizing torque transmission to the disc. The actuation type can be flexibly adapted to customer-specific requirements. Wide range of applications and customized options Designed to meet diverse water infrastructure needs, the WS112 is available in a variety of pressure ratings and sizes. Whether it’s municipal water networks, wastewater treatment, or seawater desalination, this valve delivers efficiency and adaptability, setting new benchmarks in performance. Quality in detail 1 - BODY: The heavy-duty body construction is equipped with integral lifting points for easy installation, while the brackets provide strong ground support. 2 - DISC DESIGN: The low-profile, streamlined disc design ensures high Kv values, while the double-offset design reduces seal wear and torque. The key-less disc-shaft connection and closed-end disc with advanced shaft sealing system ensure corrosion-free operation. 3 - TOP FLANGE: All valves feature ISO top-flanges for direct mounting of various actuator and operator connections. 4 - BEARING SYSTEM: Self-lubricating bearings reduce shaft friction by centralizing the shaft and preventing radial movement from actuator side-thrust, resulting in low operating torque and ensuring smooth operation. 5 - RETAINING RING: The one-piece retaining ring prevents the sealing ring from rolling out, while the sealing ring can be easily replaced on-site without dismantling the valve disc or requiring any special tools. 6 - SEAT: EPDM, NBR, FPM seals provide bi-directional zero-leakage sealing. 7 - SHAFT: The dry shaft design, featuring precision bearings, O-rings, and sealed, self-lubricating bearing bushes, fully isolates the stainless-steel shafts from the medium, ensuring maintenance-free operation throughout their lifespan. The polygonal design reduces hysteresis, enhancing overall efficiency. 8 - ENCLOSED DISC HUBS: Durability is enhanced by enclosed disc hubs that provide uninterrupted corrosion protection. 9 - POLYGON CONNECTION: The polygonal design eliminates hysteresis, providing seamless, efficient movement without any energy loss, thereby enhancing system performance. 10 - BODY SEAT: The stainless-steel weld-filled integral body seat, engineered with a high-precision finish, delivers a corrosion- and erosion-resistant surface to ensure durability and reliability of the entire sealing system. Applications of the WS112 - Drinking water pipes and supply networks: Reliable and hygienic solution for municipal utilities and supply companies. - Seawater desalination plants: Corrosion-resistant construction for long-term use in salty environments. - Wastewater treatment and greywater management: Perfectly suited for wastewater treatment plants, treatment facilities and sewer networks. - Power plants and industrial facilities: Efficient control of water and process media in energy and industrial infrastructures. - Pumping stations & underground transport lines: Safe handling of large volumes of water over long distances. - Robust, double eccentric design for reduced friction and extended service life - Seal-on-disc design for bidirectional, leakage-free sealing - Available in double-flange configuration - Innovative polygon shaft profile for optimized torque transmission - ISO top-flange for direct actuator mounting - Self-lubricating bearings for low operating torque - One-piece retaining ring for easy seal replacement - EPDM, NBR, FPM seals for zero-leakage - Dry shaft design with corrosion protection - Enclosed disc hubs for enhanced durability - Stainless-steel weld-filled body seat for corrosion and erosion resistance - Available in various pressure ratings and sizes