Ductile Iron is a newer stronger material, created by the addition of magnesium alloy to the molten iron. If a material can withstand extensive deformation without failing under high tensile stress, it is considered ductile.The result is an iron that is much stronger and harder to break, more corrosion resistant, and is easily machined.
PN10 and PN16 specify metric flange measurements (such as bolt circle diameter, hole size, bolt size etc) according to such standards as ISO 7005-1 or DIN 2501. Our standard flanges are defined in the English system (inches) and most will not mate up with metric flanges. With Kennedy Valve's state of the art CNC machining capabilities our products can have flanges made to PN10 or PN16 specifications so that a connection can be made between our products and metric products (for example, one of our valves with a PN10 flange end can be attached to some metric pipe that also has a PN10 flanged end).
A high performance butterfly valve. This valve has two stems offset from the centre. It is capable of providing accurate, stable, throttle flow control.
The triple offset design is used where bubble tight shut-off, zero leakage is required in common applications such as steam, chemical, refining, and offshore oil and gas. They offer a lower cost, lower torque option, than alternative style metal seated valves. It is low maintenance and offers an extended valve life.
A high performance butterfly valve. This valve has three offsets from the centre. The third offset is the elliptical seat geometry. This along with the two eccentric shaft offsets, allows the disc to seal against the seat with no friction. This seat design allows for uniform sealing, and thus bi-directional tightness at maximum differential pressure.
Concentric butterfly valves also known as ‘resilient seated’ butterfly valves are suitable for a wide range of applications such as cooling water, chemicals, brine,oil mud, hydrocarbons, wastewater, firewater, seawater, natural gas and flare gas amongst many others. The stem is centred in the middle of the disc and the disc centred in the valve body. The disc is constantly in contact with valve seat. Seats can include EPDM, NBR, Viton, Silicon, Teflon, Hypalon and neoprene.
Butterfly valves are used to stop, start, and regulate fluid flow.
A Butterfly valve is a quarter-turn rotary motion valve with advantage of low pressure drop and high-pressure recovery
ICV product warranty period：2-3Years