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*Motor drive penalty basis: $/hp = ($0.039/kWhr) X 8200 hr/yr X 3 yr X (0.746 kw/hr input)/( 0.95 hp/hp input) s $750/hp [for 3 yr] **Turbine drive penalty basis: $/(lb/hr) = ($0.003/hr)/(lb/hr) X 8200 hr/yr X 3 yr s 73.5/(lb/hr) [for 3 yr] Assumptions

1. Utility evaluation is based on normal operating point.

2. Pay-out period is for three years (one year = 8200 operating hours)

3. Utility cost expressed as a penalty against equipment less efficient than the lowest utility consumer.

4. Estimated motor efficiency is 95%.

*Motor drive penalty basis: $/hp = ($0.039/kWhr) X 8200 hr/yr X 3 yr X (0.746 kw/hr input)/( 0.95 hp/hp input) s $750/hp [for 3 yr] **Turbine drive penalty basis: $/(lb/hr) = ($0.003/hr)/(lb/hr) X 8200 hr/yr X 3 yr s 73.5/(lb/hr) [for 3 yr] Assumptions

1. Utility evaluation is based on normal operating point.

2. Pay-out period is for three years (one year = 8200 operating hours)

3. Utility cost expressed as a penalty against equipment less efficient than the lowest utility consumer.

4. Estimated motor efficiency is 95%.

Vendor Data Requirement (VDR) Form For complicated equipment where many different documents are requested for submittal by the purchaser, a list of these documents is usually included in the requisition. This list should include a listing of each generic document, the number of copies required and the time after placement of purchase order that the document is required by the purchaser. Figures 5a and 5b are copies of typical VDR forms for an API-610 pump service.

It should be noted that requirements for drawings are significantly different for an end user maintenance group and an engineering contractor. Because documentation can add a significant amount to the purchase cost, care should be taken when specifying required drawings and drawing quantities.

Inspection and Testing Checklist For critical and special pump applications, the purchaser may require significant shop inspection and testing of the equipment above the vendor's standard procedures. This might include materials certification, NDE, welding inspections, rotor balancing, inspection reports, and mechanical/performance tests.

Figures 6a to 6c show typical Inspection and Testing documents that might be used for ASME, API-610, and other types of centrifugal pumping services. These documents allow the purchaser's representative to maintain a record of requirements for such items as the following:

pselvdr.xls

TYPICAL CENTRIFUGAL PUMPS Vendor Drawing and Data Requirements

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Drawings & Documents shall be submitted on agreed dates and as per specification.

Job Number: XYZ Vendor:

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