PE Flange Bolt and Stud Calculation

Choose the polyethylene pipe size and the joint type. The tool calculates the stud or bolt length and the number of nuts and washers from the thicknesses of the flange adaptor (PE stub end), backing flange, gasket and mating part, using EN 1092-1 bolt hole dimensions.

Joint details

PE pipe outside diameter (d)

Pressure class (drilling standard)

Joint type

Fastener

Number of joints

Material

Thicknesses (filled in automatically, you can change them)

Backing flange (mm)

Adaptor collar (mm)

Gasket (mm)

Mating flange (mm)

Result · for one joint

Pcs / joint

Hole diameter

Bolt circle (k)

Flange outside diameter

Length breakdown

Bill of materials

Item	Per joint	Total

Order / quote text

Calculation method. Stud length = clamped thicknesses + 2 washers + 2 nuts + 2 threads projecting at each end. Bolt length = thicknesses + 2 washers + 1 nut + 2 threads projecting; the result is rounded up to the next standard length (ISO 4014/4017). Studs are rounded in 5 mm steps, and in 10 mm steps above 200 mm.

Source values. Number of holes, bolt size and bolt circle are according to EN 1092-1. PE collar and backing flange thicknesses are typical catalogue values; they vary between manufacturers, so check them against the catalogue of the product you use. Nuts are ISO 4032 and washers ISO 7089.

Yazıcı Endüstri · flanges, elbows, PE pipes and electrofusion fittings · yazici@yaziciendustri.com

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Send us the list from the calculator; we will quote flanges, elbows, tees, reducers, pipes and valves in a single offer, with EN 10204 3.1 material certificates.

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This calculator is used in these sectors: Water treatment plants. All calculators →

Results are for preliminary selection and do not replace engineering design. Ask our technical team for the final selection.

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