Shell and tube scope
Prepare equipment duty statement for the shell and tube scope review. Describe the information being requested and identify the equipment concerned. Request the corresponding technical document for the proposed item, and ask which specific parts of the buyer requirement are addressed so the response can be compared with the intended purchase scope. Ask which documents describe the shell and tube unit being considered?
Request or submit arrangement request, according to the proposed purchase scope. List the intended instruments and the requirement attached to each instrument. Request a response identifying the proposed equipment configuration for each task, and ask the supplier to explain any difference between the requested coverage and the corresponding configuration document.
Site connection review
Prepare piping layout for the site connection review review. Mark the equipment boundaries and connection locations on the project drawing. Request the corresponding interface drawing for the proposed exchanger, and compare its orientation and connection identification with the buyer piping plan before requesting clarification of any changed interface. Ask how should connection locations be compared with the planned installation?
Request or submit equipment location drawing, according to the proposed purchase scope. Identify the available location and mark the installation boundaries in the buyer layout. Request the proposed equipment arrangement for comparison, and include mounting, connection and access requirements so the buyer can ask about specific differences before accepting the suggested installation configuration.
Access envelope
Prepare available floor space for the access envelope review. Identify the available location and mark the installation boundaries in the buyer layout. Request the proposed equipment arrangement for comparison, and include mounting, connection and access requirements so the buyer can ask about specific differences before accepting the suggested installation configuration. Ask what access restrictions should appear in the equipment request?
Request or submit maintenance clearance, according to the proposed purchase scope. Describe the access restrictions and the intended inspection or maintenance task. Attach available layout photographs or drawings, and ask the supplier what information is needed to review the proposed equipment against the buyer access requirement before the work scope is discussed.
Purchase comparison
Prepare scope of supply for the purchase comparison review. Name the requested item and distinguish the main equipment from separately requested components. Ask the supplier to identify the corresponding items in the proposal, and confirm minimum order quantity and lead time before ordering against the agreed configuration and receiving requirements. Ask which items should be separated when comparing shell and tube proposals?
Request or submit document checklist, according to the proposed purchase scope. Identify the equipment reference and document version associated with the request. Ask for a corresponding document list for the proposed configuration, and check which requested documents are included or still need clarification before the buyer compares the description with the purchase scope.
Shell and tube heat exchanger: documents to request
| Ask about | Request with your inquiry |
|---|---|
| Which documents describe the shell and tube unit being considered? | Equipment duty statement and arrangement request |
| How should connection locations be compared with the planned installation? | Piping layout and equipment location drawing |
| What access restrictions should appear in the equipment request? | Available floor space and maintenance clearance |
| Which items should be separated when comparing shell and tube proposals? | Scope of supply and document checklist |