Input variables

Generic variables

These variables can be found in virtually all reports as input variables

Design Pressure – P_d: Pressure assumed to be present in the component according to the design terms
Design Temperature – T_d: Temperature assumed to be present in the component according to the design terms
Material cylinder, cone: Name of selected material used for the construction of the component

Specific variables

These variables are component specific

Large/Small: Large and Small refer to the large pipe end and the smaller (reduced) pipe end respectively
Outside Diameter cylinder, cone – D_e: Outside diameter of the attached part. The diameter runs from the outside of the wall to the opposite outside of the wall, through the center of the circle.
Nominal Thickness cylinder, cone – d_cn, d_kn (Large/Small): Thickness ‘as is’, meaning it is the design thickness taking into account corrosion and tolerance.
Corrosion – Ca: Amount of thickness that accounts for the possible effects of corrosions.
Tolerance – tol: Tolerance in thickness for production
Length conical part – L_k: Length of the part that reduces gradually in diameter and hence, forms a conical shape
Angle cone – α: The angle of the conical section, or the slope with which the diameter reduces.

Concentric reducer

Concentric reducer dimensions

Eccentric reducer

Eccentric reducer dimensions

Calculated Values

Yield strength at operating temperature – R_e (Large/Small): Stress in the component at which the component starts to plastically deform at operating temperature.
Modulus of elasticity – E (Large/Small): Tendency to deform (tensile strain) along an axis when opposing forces (tensile stress) are applied along that axis.
Poisson's ratio ν: (Negative) ratio of transverse to axial strain. An extension (or contraction) in the direction of a load corresponds in a contraction (or extension) in a direction perpendicular to the applied load. The ratio between these two quantities is the Poisson's ratio.
Axial stresses cylinder – S_ax:c (Large/Small): Stress that tends to stretch the component along the axial direction.
Axial stresses cone – S_ax:k (Large/Small): Stress that tends to stretch the component along the axial direction.
Tangential stresses cylinder – S_tg:c (Large/Small): Stress that tends to stretch the component along the tangential (circumferential) direction. Also called hoop stress.
Tangential stresses cone – S_tg:k (Large/Small): Stress that tends to stretch the component along the tangential (circumferential) direction. Also called hoop stress.
Combined stresses cylinder – S_v:c (Large/Small): Stress that results from several stresses acting in several directions.
Combined stresses cone – S_v:k (Large/Small): Stress that results from several stresses acting in several directions.
Required effective junction length cylinder, cone – l_c, l_k (Large/Small): Minimum axial length along the cylinder or cone in the junction to sustain the loads.
Maximum Allowable Working Pressure – MAWP (Large/Small): The maximum pressure at which the component can be used in operation. This value should be larger than the design pressure.
Design margin – P_d / MAWP: Ratio of the design pressure to MAWP
Maximum Allowable Test Pressure – MATP (Large/Small): The maximum pressure at which the component should be tested and survive.

Scope errors

Design temperature material is out of scope.: The material properties are not available at the design temperature.
Cone angle is out of scope: required α ≤ 70° (paragraph 1).: This code determines a maximum cone angle.

Errors

Can’t find material ‘MaterialName’ in database: Material could not be found in database. Select an existing material name, or select another material via the material selection window.
Combined stress at large end concentric or eccentric cylinder junction S_v:c is too large (paragraph 3).: The combined stress exceeds the allowable stress.
Combined stress at large end concentric or eccentric cylinder junction S_v:c:i is too large (paragraph 3).: The combined stress at the inside exceeds the allowable stress.
Combined stress at large end concentric or eccentric cylinder junction S_v:c:e is too large (paragraph 3).: The combined stress at the outside exceeds the allowable stress.
Combined stress at large end concentric or eccentric cone junction S_v:k is too large (paragraph 3).: The combined stress exceeds the allowable stress.
Combined stress at large end concentric or eccentric cone junction S_v:k:i is too large (paragraph 3).: The combined stress at the inside exceeds the allowable stress.
Combined stress at large end concentric or eccentric cone junction S_v:k:e is too large (paragraph 3).: The combined stress at the outside exceeds the allowable stress.
Combined stress at small end concentric or eccentric cylinder junction S_v:c is too large (paragraph 3).: The combined stress exceeds the allowable stress.
Combined stress at small end concentric or eccentric cylinder junction S_v:c:i is too large (paragraph 3).: The combined stress at the inside exceeds the allowable stress.
Combined stress at small end concentric or eccentric cylinder junction S_v:c:e is too large (paragraph 3).: The combined stress at the outside exceeds the allowable stress.
Combined stress at small end concentric or eccentric cone junction S_v:k is too large (paragraph 3).: The combined stress exceeds the allowable stress.
Combined stress at small end concentric or eccentric cone junction S_v:k:i is too large (paragraph 3).: The combined stress at the inside exceeds the allowable stress.
Combined stress at small end concentric or eccentric cone junction S_v:k:e is too large (paragraph 3).: The combined stress at the outside exceeds the allowable stress.