scope:

This Practice describes the requirements for the design, materials of construction, inspection and testing of pressure vessels constructed in accordance with Code, Section VIII, Division 1 {or 2}. This Practice also provides guidance for the development of purchase specifications for the construction of new pressure vessels which meet the philosophy and requirements of Code, Section VIII, Division 1 {or 2}.

This Practice also applies to shell-and-tube exchangers. See PIP VECST001 and PIP VESST002 for the additional requirements specific to exchangers only.

Comment: PIP VECST001 incorporates all of this Practice by reference for shelland- tube heat exchangers.

This Practice is intended to be used for the purchase of vessels where the Manufacturer is also responsible for performing detailed design for the vessels in accordance with the Code. If Purchaser also performs a detailed design, the design shall also be in accordance with PIP VESV1002.

Comment: This Practice should be supplemented as appropriate with overlay requirements related to specific materials of construction, service fluids, operating environments, and vessel geometries.

The following are not covered by this Practice:

a. Standardized pre-designed (i.e., off-the-shelf) vessels (see PIP VESSM001)

b. Vessels with layered construction

c. Small vessels and low-pressure vessels (see PIP VESSM001 and PIP VESLP001)

d. Process design of trays and other removable internals

Purpose

This Practice provides requirements for use by a Purchaser for determining the design criteria for pressure vessels constructed in accordance with ASME Boiler and Pressure Vessel Code, Section VIII, Division 1 or Division 2, henceforth referred to as the Code. Requirements that are specific to Code, Section VIII, Division 2 are shown in braces { }.This Practice provides requirements for purchasing pressure vessels that are to be designed and fabricated by a Manufacturer.