Specification of pipeline diameter along pipeline axis (Input Table)

Data description/conditions:

Identifier: (toggleable)

Identification name of data reference point

Required

DOUT1:

Outer pipe diameter just before and at data reference point

> 0.

DOUT2:

Outer pipe diameter just after data reference point

> 0. / Undefined

(If Undefined (empty), it is assumed that DOUT2 = DOUT1.)

IOVAL1:

Initial pipe ovalisation for implosion calculation just before and at data reference point

≥ 0. and ≤ 1.

(If Undefined (empty), it is assumed that IOVAL1 = 0 (no initial ovalisation is taken into account).)

IOVAL2:

Initial pipe ovalisation for implosion calculation just after data reference point

≥ 0. and ≤ 1. / Undefined

(If Undefined (empty), it is assumed that IOVAL2 = IOVAL1.)

Both IOVAL1 and IOVAL2 are parts of the NEN 3650-2:2020+A1:2024 calculation of the pressure implosion factor.

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H310121 (last modified: Feb 9, 2026

See also:

Table description