Wafer Type Butterfly Valves

Hamoun Nyzeh Company (HANYCO), a leading manufacturer of ductile iron pipes and fittings, specializes in producing and supplying pipes and fittings for water and wastewater projects, with diameters ranging from DN80 to DN900 mm and a nominal production capacity of 100,000 tons per year. Hanyco's latest product is the ductile iron wafer butterfly valve, featuring the following specifications and manufactured using the "Lost Foam Casting" process on a fully automated production line.

Nominal Size DN (50-200 mm) -- Working Pressure PN 10/16 bar

Applications of Wafer Butterfly Valves

The Hanyco butterfly valve is suitable for a wide range of applications, including raw, cooling, and potable water up to 120°C, as well as air conditioning systems for isolating or regulating water flow. With various material options for the disc and valve seal, specific application requirements can be easily accommodated. These valves are available in nominal sizes from DN50 to DN200, with a working pressure of 10/16 bar. Butterfly valves should not be used as flow controllers in transmission lines; they must be either fully open or fully closed. The valve design ensures the disc is perfectly centered in the open position, providing optimal flow conditions with minimal pressure drop. This valve is suitable for installation between flanges compliant with DIN EN 1092-2 and can operate at pressures up to 16 bar.

Special Features

• Licensed according to the Iranian National Standard IS 4841
• Valve design complies with BS EN 593 standard
• Valves flanges face to face based on the DIN EN 558-1 Series 20
• Valves flange dimensions according to DIN EN 1092-2
• Bidirectional sealing capability
• Suitable for installation in all orientations (horizontal, vertical, and angled)
• Manual operation by lever (standard equipment up to DIN150) or by gearbox and hand-wheel for DIN 200
• Compatible with pneumatic or electric actuators
• No need for sealing gaskets between flanges
• Tested and inspected according to DIN EN 12266-1 standard

Materials

• EN-GJS-500-7 is available based on request.

Coating Specifications

All internal and external surfaces of the valve body are coated with pure electrostatic epoxy resin paint (RAL 5005 or RAL 5015), with a minimum layer thickness of 250 micrometers. The coating is approved by reputable international organizations for use in drinking water.

Wafer Butterfly Valve Dimensions, Lever Control, Weight

G¹ Actuation mountings dimension (Manual operation by lever for DN50-DN150 or gearbox controlled for DN200) are according to ISO5211. S² Valves flanges face to face based on the DIN EN 558-1 Series 20. HANYCO's DN50-DN150 wafer-type butterfly valves are controlled by a lever. Also, DN200 is controlled by a lever (200H) or gearbox and handwheel (200G).