BETTA FLO 12J8 - ONE-HALF HORSEPOWER 3 WIRE PUMP SPECS:

Note - on table below (NR) - means Not Recommended because of inadequate backpressure on pump. Recommended applications are highlighted in yellow. All submersible pumps need 30 lbs psi minimum back pressure, regardless of brand name. Less back pressure means shorter pump life.

Yellow shaded areas are within recommended operating pressures and water lift parameters for pump.

This pump is recommended for total water lift of  20 - 200 feet and operating pressure of 30-65 lbs psi.

To use the table below: find your total lift (left column) than follow row over to the gallon per minute you need and you will see the resulting operating pressure at top of that column. For irrigation, pressure below 40 lbs psi may be unacceptable; 50 - 60 lbs psi recommended. Selecting a higher horsepower pump will provide a higher operating pressure for the same GPM produced by a lower horsepower pump.

 

Total Lift	0 PSI (NR)	20 PSI (NR)	30 PSI	40 PSI	50 PSI	60 PSI
20 Ft Lift	17.3 GPM	15.1 GPM	13.4 GPM	11.9 GPM	10.2 GPM	8.5 GPM
40 Ft Lift	16.3 GPM	13.6 GPM	12.3 GPM	10.6 GPM	8.8 GPM	6.5 GPM
60 Ft Lift	15.0 GPM	12.4 GPM	10.8 GPM	8.9 GPM	6.5 GPM	3.1 GPM
80 Ft Lift	13.9 GPM	10.9 GPM	9.3 GPM	7.0 GPM	3.8 GPM
100 Ft Lift	12.8 GPM	9.6 GPM	7.6 GPM	4.3 GPM
120 Ft Lift	11.4 GPM	7.7 GPM	4.7 GPM
140 Ft Lift	10.0 GPM	5.0 GPM
160 Ft Lift	8.2 GPM	1.6 GPM
180 Ft Lift	5.8 GPM
200 Ft Lift	2.8 GPM

1. Stainless steel discharge and liquid-end coupler.
2. Anti-up-thrust set screw prevents impeller drag at startup and low head application, results are increased pump life and liquid end longevity.
3. Extra large graphite-impregnated bronze bearing runs cool and quiet while providing perfect shaft alignment for less wear-causing vibration. 
4. Stainless steel tubing provide corrosion resistance and long life.
5. Stainless steel cable guard protects motor leads during installation and pump start-up.
6. Impellers are made of abrasive resistant high strength glass-filled noryl.
7. High efficiency noryl diffusers provide for larger O.D. impellers.
8. Pump shaft in 7/16" hex series 400 stainless steel.
9. Stainless steel suction screen, completely non-corrosive, protects pumping elements from harmful materials and increases impeller and pump life.
10. Motor coupling is a one piece sintered stainless powdered metal part. Then 7/16 hex shaft is locked in with a screw and with lock-tite applied to the threads.
11. One piece motor bracket and suction are supplied in stainless steel.

• Check valve supplied on all pumps.
• Screw, nuts and washers are stainless steel.
• Motors on Betta Flo pumps continue to be the industry benchmark Franklin Electric, considered to be the best pump motor on the market, while many competitors have gone to lesser quality motors in efforts to cut production cost.
• Overall, the very popular professional grade Betta Flo pump line has a well earned reputation for quality and performance stretching back to the days of the legendary Blue Max pumps. Betta Flo pumps by National Pump have proven that performance and quality can also be coupled with a cost-effective price.