Pump Pricing
“Evaluation of Prices in Case of Pumps”
Evaluation Criterion:
1. The offered Model of Pump by bidder should meet Pump datasheet parameters enclosed in the Material Requisition.
2. The NPSHA should normally be at least 0.6m above the NPSHR of offered model by the bidder.
3. By Analyzing the Pump Characteristic Curves, i.e. Pump Curve shall meet the rated condition of Pump Datasheet BEP should be between the rated point
and the normal point. The head capacity characteristic curve should continuously rise as flow is reduced to shutoff (or zero flow).
Operating Point should be between MCF and 120% of BEP. Do not select the pump at max. Impeller dia. (5% head rise should be possible).
4. By reviewing the Performance Track Record of the offered model.
5. Power loading.
A: Total Capital cost of Package:
- Basic quoted price of equipment includes Pump Price, commissioning and mandatory Spares, operational spares, special tools & tackles.
- Freight Charges (Vendor workshop to Site).
- Applicable Taxes & duties.
B: Differential Operating Cost:
- B= N(OP) * (BKWE – BKWR) * CF * 8000*DF
Where,
N(OP) = Number of Operating Units.
BKWE = Guarantee Shaft Power (Kw) for Pump quoted by bidder under evaluation.
BKWR = Lowest quoted guarantee pump BKw for the technically qualified bidders.
CF = Cost of Energy.i.e. 4 Rs per KWh. 8000 = Number of Operating hours per year.
DF = Discounting factor to arrive at NET PRESENT VALUE(NPV) based on Number of operating years.
(i.e. ∑ N=2 TO N = K+1 +(X/100)}]N = 2.915.
X = Percentage rate of Interest = SBI Base Rate on the date of opening bid price + 5% = 8.5% + 5% = 13.5%
NOTE:- Power loading applicable for Centrifugal Pump only.
C: Other Applicable Cost:
- Cost of Supervision of Erection, Testing & Commissioning. (i.e. No. of pumps X no. of Mandays X per diem rate)
Important Documents for review:
1. Pump General arrangement drawing.
2. Pump Cross sectional drawing.
3. Pump Datasheets and Characteristic curves.
4. Utility Data.
5. Pump Motor data or Turbine datasheet with P&IDs.