A water pump and dewatering system is water control equipment that uses evaporation or pumping to drain or remove different forms of water from tunnels, caissons, mine shafts, river beds, construction sites, underground metro networks, and even residential buildings. Rain and groundwater can inundate an entire area within a few hours, causing surface erosion, delays, structural damage, etc. Several water pumps, including jet pumps, centrifugal pumps, submersible pumps and positive displacement pumps. Some systems are installed to work continuously as a long-term solution, where they’re ready to activate at a moment’s notice. In contrast, others are generally utilised intermittently or short-term (as service hire or equipment) after water penetration or damage.
How does a water pump function?
Numerous water pumps, including centrifugal pumps and positive displacement pumps, perform the same service but act differently. The fundamental principle of a water pump is to use an engine to transform kinetic energy or rotational energy into power for fluid flow (hydrodynamic energy) or fluid movement.
Centrifugal pumps utilise an impeller; liquid flows through the spinning impeller and is discharged by centrifugal force through the impeller’s tips. This boosts the fluid’s velocity and pressure and sends it to the pump’s exit.
A positive displacement pump has an increasing cavity on the suction side and a decreasing cavity on the discharge side. The water pump operates by alternating filling and dislodging the cavity with fluid, with each round having a consistent volume regardless of the pressure or pump head utilised.
Despite having similar applications, the primary difference between positive displacement pumps and centrifugal water pumps is that centrifugal pumps can have variable flow depending on the system pressure and the type of pump head used. In contrast, positive displacement pumps can have variable flow regardless of system pressure or pump head. When the centrifugal pump flow is decreased, the viscosity increases; however, when the flow of a positive displacement pump is raised, so does the viscosity.
What are the various types of pumps available?
High head pumps
High head pumps are utilised in places that require long-distance water pumping or uphill fluid pumping. Due to their sturdiness and capacity to produce high-pressure water pumping, these pumps can typically handle more extensive flows.
The portable pump is ideal for swiftly pumping water from a boat, basement, or water heater. Also known as portable water transfer pumps, these pumps can boost line water pressure, aiding in the irrigation of lawns and gardens. Numerous portable pump companies in Brisbane, Melbourne, Perth, and around the nation offer competitively priced portable pump rental services.
They are known as “silent” pumps due to their low noise output. These pumps provide a quiet option for building sites that require sewage applications, floodwater control, or excavation activities. Their soundproof coverings minimise the conventional water pump’s operating noise while also providing a high pump pressure. Silent pumps are ideal for construction sites in residential neighbourhoods or locations where noise must be kept minimum.
These pumps significantly improve people’s lives since they enable extensive industrial, agricultural, and domestic duties. However, the range of water pumps on the market is so versatile and abundant that it is challenging to select the pump that best meets your needs. Contact the appropriate source to determine which type is ideal for you.