A propeller pump is
a high-flow, low-lift impeller-type device with a linear flow path. Propeller
pumps are generally mounted with the impeller below water level and the motor
above. However, they can also be installed vertically, horizontally, or at an
angle. These pumps draw water through an outer casing and out of a discharge
outlet through a propeller-bladed drive head. Propeller pumps are used in water
treatment facilities, chemical plants, or agricultural applications where high
head values are not required. According to Propeller Pumps Manufacturer
India, compared to other standard pump designs, they have
several advantages, such as large flow capacities, the ability to pump
suspended sand, and prime-free operation.
Propeller
pumps have a conventional rotating impeller design and are used in
applications with large flow volumes and moderate head requirements. In these
cases, the head refers to the total head where the pump can move water. Depending
on the specific application, these can be oriented vertically, horizontally or
at an angle. Vertical and angled propeller pumps typically have a drive motor
above the water on top of a tubular casing. The pump drive shaft is routed to
the impeller head at the bottom of the casing through support bearings in a
sealed inner tube.
As per Pumps
manufacturer India, the impeller head is equipped with propeller-style
blades and may consist of single or multi-stage. The suction head section of
the housing that houses the impellers is usually fitted with a filter fitting
that prevents ingestion of large foreign objects. When the pump runs, the
rotating impeller draws water through the casing and an angled discharge pipe.
The fact that water moves in a straight line up the pump casing rather than in
a circular direction represents the most apparent difference between the
propeller and other impeller pumps.
Installations of
horizontal Propeller pump usually
use hermetic submerged motors just behind the impeller head. These types are
frequently utilized when the pump pulls water via a bulkhead or tank wall.
Free-floating propeller pumps are movable apparatuses fixed to a pontoon that
have been mainly made and may be moved around the body of water as needed. In
tanks with extremely steep walls, inclined pumps are frequently installed.
Fields of application of Flowmore propeller pumps
- irrigation and drainage of agricultural surfaces
- water level regulation (water lifting stations and polder pumps)
- water circulation in purification facilities
- increase in oxygen in water for fish farming
- Stowage of boats, ferries and tankers
- emptying or flooding of floating docks
- emptying or flooding of deposits
- clean or slightly dirty water with a solids content of up to 50 mg/l
- fresh, sea and brackish water
- temperatures of the transported medium up to 50 °C
Advantages of Propeller pumps at Flowmore
- vertical and horizontal mounting possible
- usable as an in-line and submersible pump
- possibility of tandem and back-to-back arrangement
- excellent cooling thanks to the motor filled with water and with a circulation of the medium
- rewindable and encapsulated motor with mechanical seal, without shaft passage to the outside
- adjustable by frequency converter
- extended service times without maintenance
- low repair costs
- low installation and operating costs
- non-polluting of the environment, completely recyclable
- good service network
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