Double Cut Cylinder flat pattern

What it is

A rolled shell cut at an angle on both ends, each with its own angle. Developed, it gives two waves — one per edge — which can differ in height and phase. It is the part that clears two offsets with a single length of tube.

Where it is used

Connecting runs between misaligned equipment, intermediate gores of field-assembled bends, adaptations to existing pipework.

Measurements the calculation needs

• D Diameter
• X Measurement X
• ANG1 Angle 1
• ANG2 Angle 2
• DV Divisions
• THK Thickness

Worked example

The values the form comes pre-filled with, run through the tool itself:

Diameter	200 mm
Measurement X	100 mm
Angle 1	35°
Angle 2	35°
Divisions	16
Thickness	10 mm
The flat pattern fits a plate of	597 × 187 mm
Flat patterns produced	2

Frequently asked questions

Do both angles have to match?

No. Each opening takes its own angle, which is the point of the part: solving two different offsets in one cut of plate.

Why does the result come in two flat patterns?

The part is delivered as two halves that together close the tube. Each half can be checked separately against the single-cut cylinder.