Knife gate valve HERA-BD

pneumaticelectricwith handwheel

Knife gate valve to DIN/EN with wafer-type single-piece or two-piece body made of nodular cast iron, bi-directional, with gland packing, non-rising stem, corrosion-protected by epoxy coating. Benefits All cast iron and steel components are protected against corrosion by high-quality epoxy coating. Robust and compact steel yoke for straightforward mounting of pneumatic and electric actuators and position switches. A hard anodised aluminium NAMUR adapter plate attached to the actuator allows sensors or solenoid valves to be quickly installed (plug & run). Reliable and service-friendly stem seal: The gland packing is made of PTFE impregnated fibre and can be re-adjusted during operation. There is no need to remove the valve from the piping to replace the packing. High functional reliability and tight shut-off in both flow directions The stainless steel blade is polished on both sides and guided by a confined U-shaped seal during the entire valve travel. This prevents "chattering" of the blade and minimises the risk of deposits. Flushing corners in the body ensure the seat is flushed clean when the valve closes. Suitable for universal use. Flange connection via tapped blind holes and throughbolts enables the wafer-type knife gate valve to be clamped between pipe flanges or used as dead-end valve at full operating pressure. Economically efficient The valve is available in a single-piece or two-piece body design with full bore providing unrestricted flow passage. The body is fully machined inside, resulting in a tight fit of all components, very low pressure losses and high flow coefficients.