Flexible impeller: Difference between revisions
Content deleted Content added
No edit summary |
→Materials: random capitalization × 3 |
||
| (51 intermediate revisions by 15 users not shown) | |||
| Line 1: | Line 1: | ||
{{refimprove|date=June 2016}} |
|||
[[Image:Flexible_impeller_pump.gif|thumb|Animated image showing the operation of a flexible–impeller pump]] |
|||
{{Main article|Pump}} |
|||
A '''flexible impeller pump''' is a positive-displacement [[pump]] that, by deforming impeller vanes, draws the liquid into the pump housing and moves it to the discharge port with a constant flow rate. The flexibility of the vanes enables a tight seal to the internal housing, making the pump [[Pump#Priming a pump|self-priming]], while also permitting bi-directional operation. The output from these pumps tends to be smooth or gentle when compared to the operation of a [[reciprocating pump]] (for example). In 1938, Arthur M. Briggs filed a patent for this type of pump.<ref>{{patent|US|2189356}}</ref> |
|||
A '''flexible impeller pump''' is a positive-displacement [[pump]] that consists of rubber impeller with variable vanes, that rotates inside of a pump body. |
|||
==Types== |
==Types== |
||
* '''Execution''': close coupled, bare shaft, with hydraulic motor, belt driven, gearmotor, mechanical speed variator, frequency converter,... |
|||
a |
|||
* '''Fittings''': DIN 11851, Garolla, BSP, Macon, Triclover, SMS, BSM/RJT,... |
|||
==Uses== |
==Uses== |
||
Particularly suitable for transfer of viscous, delicate, and slurry fluids even with high solid content. Widely used in the oenological field, food processing, chemical industry, cosmetic and marine field. |
Particularly suitable for transfer of viscous, delicate, and slurry fluids even with high solid content. Widely used in the oenological field, food processing, chemical industry, cosmetic and marine field. |
||
== Materials == |
== Materials == |
||
Pump housing can be made |
Pump housing can be made of high grade [[stainless steel]], [[bronze]] for marine applications, or other materials. |
||
The impeller can be made of: |
|||
[[Image:Flexible impeller.jpg|thumb|A flexible impeller]] |
|||
* Natural rubber (NR) - Excellent for water based liquid, highest mechanical resistance. |
|||
| ⚫ | |||
* Neoprene (CR) - Good balance between chemical and mechanical resistance. |
|||
[[Category:Canadian inventions]] |
|||
* Nitrile (NBR) - Excellent resistance to oils and fats. |
|||
* EPDM - Best for hot fluid, for acid and alkaline fluids. |
|||
* Silicone (VMQ) - Best for very high temperature. |
|||
The [[end face mechanical seal]] can be made of: |
|||
[[de:impellerpumpen]] |
|||
[[fr:Pompes a impulseur flexible]] |
|||
* [[Ceramic]] |
|||
[[it:Pompa a girante flessibile]] |
|||
* [[Stainless steel]] |
|||
[[nl:Flexibele Waaierpompen]] |
|||
* [[Graphite]] |
|||
[[pl:Pompy z elastycznym wirnikiem]] |
|||
* [[Tungsten carbide]] |
|||
[[pt:Bombas de Impulsor Flexível]] |
|||
* [[Silicon carbide]] |
|||
[[ru:Насос с Гибким Импеллером]] |
|||
* Elastomers, such as NBR, EPDM, or VITON |
|||
[[uk:насоси з гнучкою крильчаткою]] |
|||
==References== |
|||
{{Reflist}} |
|||
| ⚫ | |||
Latest revision as of 09:49, 13 March 2024
 | This article needs additional citations for verification. (June 2016) |
A flexible impeller pump is a positive-displacement pump that, by deforming impeller vanes, draws the liquid into the pump housing and moves it to the discharge port with a constant flow rate. The flexibility of the vanes enables a tight seal to the internal housing, making the pump self-priming, while also permitting bi-directional operation. The output from these pumps tends to be smooth or gentle when compared to the operation of a reciprocating pump (for example). In 1938, Arthur M. Briggs filed a patent for this type of pump.[1]
Types
[edit]- Execution: close coupled, bare shaft, with hydraulic motor, belt driven, gearmotor, mechanical speed variator, frequency converter,...
- Fittings: DIN 11851, Garolla, BSP, Macon, Triclover, SMS, BSM/RJT,...
Uses
[edit]Particularly suitable for transfer of viscous, delicate, and slurry fluids even with high solid content. Widely used in the oenological field, food processing, chemical industry, cosmetic and marine field.
Materials
[edit]Pump housing can be made of high grade stainless steel, bronze for marine applications, or other materials.
The impeller can be made of:
- Natural rubber (NR) - Excellent for water based liquid, highest mechanical resistance.
- Neoprene (CR) - Good balance between chemical and mechanical resistance.
- Nitrile (NBR) - Excellent resistance to oils and fats.
- EPDM - Best for hot fluid, for acid and alkaline fluids.
- Silicone (VMQ) - Best for very high temperature.
The end face mechanical seal can be made of:
- Ceramic
- Stainless steel
- Graphite
- Tungsten carbide
- Silicon carbide
- Elastomers, such as NBR, EPDM, or VITON