Engineering calculation suite

Pressure Vessel Minimum Thickness Calculator

ASME BPVC Section VIII, Division 1 • API • ASTM reference framework

Project information

Vessel tag / numberDescriptionProjectLocation

Design conditions

Unit systemDesign pressure(psi or MPa)Design temperature(°F or °C)Inside diameter(in or mm)Shell tangent length(in or mm)Corrosion allowance(in or mm)Service

Material & joint

Material specificationAllowable stress S(psi or MPa)Joint efficiency E

Head configuration

Head typeInside crown radius(torispherical)

Calculation report

V-101

Production separator

Required shell thickness

0.306 in

Required head thickness

0.305 in

Net shell thickness

0.181 in

UG-99 test basis

195.0 psi

Governing shell case: Circumferential stress. Corrosion allowance of 0.125 in included.

Detailed results

UG-27 circumferential basis: 0.181 in

UG-27 longitudinal basis: 0.090 in

UG-32 formed head basis: 0.180 in

UG-16 minimum applied: 0.063 in

Standards basis

ASME BPVC VIII-1 UG-27Cylindrical shell internal-pressure thickness

ASME BPVC VIII-1 UG-32Formed head internal-pressure thickness

ASME BPVC VIII-1 UG-16Minimum thickness requirements

ASME BPVC VIII-1 UW-12Welded-joint efficiency

ASME BPVC II-DAllowable stress values (user verified)

ASME BPVC VIII-1 UG-99Hydrostatic test basis

ASME B16.5 / B16.47Flange compatibility reference

API 510 / API 572In-service inspection and vessel practices

API 579-1 / ASME FFS-1Fitness-for-service reference

ASTM A516 / ASME SA-516Carbon-steel pressure-vessel plate reference

ASTM A240 / ASME SA-240Stainless-steel plate reference

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