Vertical Pump VS Self-priming Pump
Views: 7 Author: Site Editor Publish Time: 2016-01-07 Origin: Site
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| Other Vertical Pumps | Self-Priming Pump |
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| Priming water & performance |
| - Valveless design allows pump to prime liquids containing limited amounts of solid particles.
- Prevents backflow by siphoning and keeps priming water in auxiliary tank.
- Automatically primes 16.4 ft. in less than 2 minutes.
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| Bushing & suction pipe | - Submersed pumps always require bushing.
- Additional bushing is required when suction pipes are longer than 5.2 ft. (from pump base).
| - Pump can handle any liquid level with a low-cost extension of the suction pipe.
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| Cooling water | - Requires outer cooling water for the bushing.
- Used cooling water enters sump pit, adding wastewater treatment costs.
- Insufficient volume of cooling water caused by its water pressure or frozen pipes tends to lead to pump failure.
| - Requires no outer cooling water.
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| Maintenance | - Unclogging strainers can be tedious and expensive.
- Costly periodic replacement of bushing.
| - Strainers are easily cleaned by lifting the suction pipe.
- Lightweight construction enables the maintenance work to be carried out by one person.
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