Altecnic Prescal 300 Pressure Reducing Valve DN300

The Prescal 300 Pressure Reducing Valve DN300 is a pressure reducing valve manufactured by Altecnic. It forms part of the Prescal 300 range and is classified within the Altecnic pressure reducing valve series. Its function is to reduce and hold a controlled downstream pressure within boiler and heating system pipework.

• Downstream pressure readings drift above the set point and cannot be brought back by adjustment.
• The valve fails to hold a steady outlet pressure, with noticeable fluctuation across the system.
• Water weeps from the valve body, bonnet or adjustment assembly.
• Debris or scale build-up inside the valve prevents the seat from closing cleanly.
• The valve no longer responds to adjustment of the setting.

• Confirm the pipework nominal size matches DN300 and that the valve will fit the available installation space.
• Check the required downstream pressure range against the intended system design before selecting the setting.
• Verify the flow direction arrows and installation orientation permitted for the valve position in the system.
• Check that the existing connections, flanges or fittings match the valve's connection arrangement.