Union nut for cutting ring, tube 20 S, zinc-plated steel, heavy series

As a union nut the article presses the cutting ring onto the cone of the stud as it is tightened and so holds the tube in the coupling. The data state a working pressure of 400 bar. This version is listed with tube connection 20 S (M30x2). Material zinc-plated steel is listed for this version. Also stated are heavy series.

Benefits

• Matches tube 20 S (M30x2) of the heavy series, so the nut fits the cone of the matching stud.
• Available as a single part, so a damaged nut can be replaced without changing the whole coupling.
• For working pressures up to 400 bar in this size.
• Temperature range -40 to +120 °C, made of zinc-plated steel.
• The hexagon allows tightening with an ordinary open-ended spanner, no special tool is needed.

Applications

When building a tube run of the heavy series one nut per joint belongs to the cutting ring and the stud.

Standards and conformity

Before assembly the stud thread and cone, the inside of the union nut and the cutting ring are oiled. Thin-walled or soft tubes need a reinforcing sleeve.