WORKING PRINCIPLE
VSW pumps are submersible vortex pumps, for dirty water, designed mainly for domestic use and industrial use. Their operating principle is that of a centrifugal pump with a retracted vortex impeller. A large sized ring chamber with a threaded delivery opening is machined in the pump body and closed by a cover, housing the suction opening, which is shaped to prevent suspended solid over a certain size from entering the pump. Since the impeller is retracted with respect to the cover, water entering the front chamber lying between these two components assumes a vortex motion and is centrifuged into the ring chamber, leaving the pump via the delivery opening.
PUMP INSTALLATION AND APPLICATIONS
VSW pumps are designed to lift dirty water which is not chemically aggressive to the pump components. In all cases where suspended solids up to ¦Õ20mm have to be dealt with. Recommended applications therefore include draining flooding in confined areas such as basements and garages ,and also pumping domestic waste and the disposal of waste water, containing fibrous matter and is also widely used in many factories. These pumps are easy to install and dependable when used automatically in fixed installations. This system automatically starts the pump when the fluid reaches a preset level,stopping it once the fluid has been emptied. Installing a suitable non-return valve on the delivery pipe prevents reverse flow when the pump stops.
STRUCTURE CHARACTERISTICS
¡ù stainless steel pump body
¡ù stainless steel mechanical seal (graphite to ceramic or SIC to graphite)
¡ù stainless steel shaft
¡ù with float switch or without
¡ù cast iron open impeller
¡ù with thermal overload protector in single phase motor |
