• Danner 12746 Replacement Impeller for Model 9.5B Pump
Pet Supplies
  • Replacement impeller for current production model 9-1/2 pumps
  • Restores maximum pump flow

Write a review

Note: HTML is not translated!
    Bad           Good

Danner 12746 Replacement Impeller for Model 9.5B Pump

  • $38.60
  • $38.23



Related Products

Danner Mfg Company 2523 Pondmaster 350GPH Pump

Danner Mfg Company 2523 Pondmaster 350GPH Pump

Thick, well insulated power cords and motors allow these pum..

$127.75

Danner Mfg Company 12545 Magnetic Drive Pump Impeller Cover

Danner Mfg Company 12545 Magnetic Drive Pump Impeller Cover

Pet SuppliesMagnetic drive pump impeller coverThis replaceme..

$15.92 $19.00

Danner Mfg Company 12730 Foam Pre-Filter

Danner Mfg Company 12730 Foam Pre-Filter

Use of this product will prevent large particles from enteri..

$21.00

Danner Mfg Company 12285 Extra Large Pre-Filter

Danner Mfg Company 12285 Extra Large Pre-Filter

Pet SuppliesCoarse polyester and foam offer biological filtr..

$19.38 $21.00

Danner Mfg Company 12535 Supreme Mag Drive Impeller Cover

Danner Mfg Company 12535 Supreme Mag Drive Impeller Cover

Volute/Pump Cover For 250/350 Gallons , Replacement Part: Pu..

$16.80

Supreme Impeller for Mag-Drive Utility Pump - Model 12B

Supreme Impeller for Mag-Drive Utility Pump - Model 12B

The magnetic impeller is what makes the water pump work, and..

$45.90

Supreme-Hydroponics 12756 Replacement Impeller/Mag for Pump 12

Supreme-Hydroponics 12756 Replacement Impeller/Mag for Pump 12

Always Disconnect power before servicing impellar assembly. ..

$41.00

Danner E G 12776 Impeller Replacement for Magnetic Drive Pumps

Danner E G 12776 Impeller Replacement for Magnetic Drive Pumps

Pet SuppliesImpeller replacementIt is designed to use with m..

$63.00

Danner 12585 MD/PM 7 Replacement Impellers

Danner 12585 MD/PM 7 Replacement Impellers

Pet SuppliesReplacement impellers for water gaden pondsBlack..

$26.32

Volute Pump Cover For 950 Gal

Volute Pump Cover For 950 Gal

IMPELLER COVER/O-RING MODEL 9.5-BSize: 95O Gph..

$12.29

Mag - drive 9.5 Water Pump (950gph)

Mag - drive 9.5 Water Pump (950gph)

The Pondmaster 02710 Mag-Drive Pump is a magnetically driven..

$170.00

Dynamic Head

The effect of the Earths gravity on the "lift" or head pressure is fairly simple; for every vertical foot of distance the pump moves the water you are adding one foot of head pressure so the ratio is a 1:1 ratio. The effects of the friction, caused by water as it travels through your hose or pipes, on the total head pressure is a little more difficult to calculate especially as there are slight variations in pipe friction in different hose materials and the smoothness of the inner bore. Basically. for every ten feet of pipe through which the water has to travel travel horizontally will contribute 1 foot of head height; the ratio of the pipe friction loss is a 10:1 ratio.

Plumbing fixtures and bends and corners in your hose also increase the total head you must calculate to ensure the proper final volume from your pump. Every corner with a 90 degree elbow in your plumbing will add 1 foot of head pressure  with a 1:1 ratio. 45 degree elbows, tees and even insert couplers can all have an impact on the final flow.

If you install a pump 40 feet away from the top of your waterfall which is 6 feet above the pump and the tubing is a single run of 40 feet horizontally then you add 4 feet of head for the tubing length (the 10:1 ratio) to the 6 foot differnetial between the pump location and the final height of the waterfall so your final total dynamic head calculation would be 10 feet. This means your final volume of water flow in this water feature or application would be the volume of flow on the performance curve that equaled the gallons per hour at 16 feet. This volume will certainly be much less than the initial volume the pump can move at an open flow or a zero head.

If in the above example your 40 feet of horizontal tubing run also required 3 elbows of 90 degrees then an additional 3 feet of theoretical head would be added and your final flow result would be at 19 feet on the performance curve of the pump. In this example you would want to choose a pump that has the desired GPH rating at 9 feet of head pressure.  Tubing size is also an important factor in accounting for head pressure loss, in general you should never reduce the diameter of the tubing below what the output size of the pump is, this will drastically increase head pressure, and reduce pump performance.  For maximum pump performance, using the largest tubing that is practical is the best choice. A best practice is to use a hose with an inner diameter that is the same as your pumps outlet fitting.