PN16 ROW 15 flange valve wedge with replaceable stem wedge seal (gray cast iron)
Water intended for human consumption. In instalations: for water, potable water and other inert fluids to flow closing.
The State Hygiene Institute in Warsaw.
Working pressure PN16.
Temp max 40°C. For water.
Temp max 70°C. For other liquids.
Flange connection according to PN-EN 1092-2.
Housing length according to PN-EN 558+A1.
Maximum torque closure MOT=1xDN [Nm].
Requirements and tests according to PN-EN 1074 – 1 and 2.
Industrial valves PN-EN 1171
Full, smooth culvert, free of depressions.
Wedge nut fixed, no backlash, preventing vibration of wedge during operation of the bolt. Non-rising stem made of stainless steel with rolled thread, secured with a resistance nut. Wedge vulcanized inside and outside with a rubber compound, suitably shaped and secured against rotation with rails.
Brass screw plug with multiple sealing, placed in the cover secured against unscrewing.
Stem wedge seal can be replaced under pressure, at any wedge position.
Cover screws are recessed and sealed with a hot mass and protected against corrosion.
Internal and external protection against corrosion with epoxy powder paint RAL 5005 with a thickness of 250μm and puncture resistance of 3kV.