Backwashing refers to the reverse-pumping of water, for example for the periodic washing of filters. Grundfos can supply pumping solutions that deliver the very strong force with well-executed flush times and speeds required for effective backwashing.
Backwashing is a form of preventive maintenance to prevent further clogging of the filter medium. Backwashing in water treatment plants is an automated process, usually run by programmable logic controllers (PLCs). The backwash cycle is usually triggered when the differential pressure over the filter exceeds a set value.
Grundfos can supply pumping solutions to cope with the hugely varying flow requirements for backwashing, ranging from huge split-case and mixed-flow pumps, where the focus is on moving water rather than added pressure, to our highly successful vertical multistage centrifugal pump (CR) – and covering all performance requirements in between.
Grundfos can supply the specialist expertise to help meet your performance objectives, from the initial identification of needs, to the selection, installation, operation, and maintenance of the pumping solution. Grundfos commissioning agreements ensure correct installation and service agreements cover all eventualities, from routine maintenance to spare parts and pump audits.
The durietta 0 is a close-coupled, end-suction, single-stage or multistage centrifugal pump suitable for all kinds of low-flow, high-head applications requiring sanitary pumping equipment. The pump is designed in compliance with food technology requirements, making it ideal for applications where a high level of hygiene is required. It is CIP- and SIP-capable, and in line with the performance characteristics outlined for pumps in DIN 12462.
The durietta 0 is made from high-quality stainless steel to ensure reliable, hygienic, non-corrosive operation. Stages, discharge and suction casings, and impellers are manufactured from deep-drawn rolled stainless steel.
Applications
- Liquid transfer in breweries and dairies
- Mixing and soft drink applications
- Food processing plants
- Filtration and bottling systems
- CIP (Cleaning-In-Place) systems
- Process pumping in the chemical industry
- As a transfer and circulation pump in water treatment systems
- Virtually all types of transfer, circulating and process pumping
Features and benefits
- Designed for sanitary applications
- Easy service and maintenance, modular design
- Reliable – less downtime
- High efficiency and low energy consumption
- Compact design
- CIP and SIP capable (DIN EN 12462)
- Materials: Rolled, deep-drawn steel AISI 316L (1.4404) with electropolished surface
- Gentle liquid handling for sensitive liquids
- Optimised hydraulics
- Single and double mechanical seals in tandem
- Shrouded pumps, especially useful for breweries and dairies
- Various pipe connection types and connection sizes
- Designed for low-flow, high-head applications
PT. Andalan Inti Rekatama – GRUNDFOS Authorized Dealer – Service Partner
The SB and SBA pump is a submersible booster pump for the pumping of clean water. It is especially suitable for rainwater applications and private wells. The pump is available in two versions:
SB
The Grundfos SB is a submersible pump for the pumping of clean water. It is designed for use in domestic applications. The pump itself is very silent, and when installed underground in a rainwater collecting tank or well, noise will never become an issue. The SB pump requires an external controller, like Pressure Manager, for automatic operation.
Features and benefits
- Flexible selection – Pump + controller
- Complete control and monitoring
- Easily accessible controller – for service & replacement
SBA
The new Grundfos SBA is a complete all-in-one unit. It is built on the proven SB platform, but comes with an integrated control unit – eliminating the need for an external pump controller.
The SBA is literally a plug- and pump solution. Once installed and connected to the piping, all you need to do is switch on the pump.
Features and benefits
- Easy selection – one unit
- Easy installation – one unit
- Flexible installation – no controller inside the house
All SB and SBA pumps are available in two main variants
- With integrated suction strainer (1 mm mesh)
- Or with side inlet/flexible suction hose with floating suction strainer (1 mm mesh).
All variants are available with or without float switch:
The float switch offers automatic operation and dryrun protection, stop at low water level, ensuring that surface fragments do not enter the strainer.
Applications
The SB and SBA pump is a submersible booster pump for the pumping of clean water. It is especially suitable for rainwater applications.
Features and benefits
- Noiseless operation
- High reliability
- Integrated protection.
- Floating suction strainer
The model with floating suction strainer always draws the water from just below the water surface where the water is clean and free from solid particles.
Additional features of the SBA:
- Simplicity – all-in-one unit
- Easy installation – no external control unit
- Integrated dry-running protection
- Automatic restart after dry-running
- Lifting eye
PT. Andalan Inti Rekatama – GRUNDFOS Authorized Dealer – Service Partner LEADER Pump
DWK and DPK are submersible pumps designed for dewatering and drainage applications. The cast-iron construction and the hydraulic design contribute durability and high efficiency. The differences between the DWK and DPK pump ranges lie in the discharge arrangement and the installation type. The DWK is designed with a top discharge pipe and suction strainer, and is thus more suitable for temporary installation, whereas the DPK has a side discharge and a ring-stand or auto coupling (as accessories), and is suitable for permanent installations.
Applications
DWK/DPK are excellent pumps for dewatering and draining applications. The combination of compact design with high-pressure capability makes the pumps suitable for use in pits, whether for temporary or fixed installation. The installation design options provide the flexibility needed to cover many needs. Applications include:
- Construction sites
- Excavations
- Tunnels
- Fish ponds
- Drainage pits.
Features and benefits
- Durability
- High efficiency
- Installation flexibility
- High-pressure capabilities, cost-effectiveness
PT. Andalan Inti Rekatama – GRUNDFOS Authorized Dealer – Service Partner
Backwashing refers to the reverse-pumping of water, for example for the periodic washing of filters. Grundfos can supply pumping solutions that deliver the very strong force with well-executed flush times and speeds required for effective backwashing.
Backwashing is a form of preventive maintenance to prevent further clogging of the filter medium. Backwashing in water treatment plants is an automated process, usually run by programmable logic controllers (PLCs). The backwash cycle is usually triggered when the differential pressure over the filter exceeds a set value.
Grundfos can supply pumping solutions to cope with the hugely varying flow requirements for backwashing, ranging from huge split-case and mixed-flow pumps, where the focus is on moving water rather than added pressure, to our highly successful vertical multistage centrifugal pump (CR) – and covering all performance requirements in between.
Grundfos can supply the specialist expertise to help meet your performance objectives, from the initial identification of needs, to the selection, installation, operation, and maintenance of the pumping solution. Grundfos commissioning agreements ensure correct installation and service agreements cover all eventualities, from routine maintenance to spare parts and pump audits.
PT. Andalan Inti Rekatama – GRUNDFOS Authorized Dealer – Service Partner
Grundfos’ new range of GHP (Grundfos Hygienic self-Priming) pumps takes efficiency and durability to new levels in sanitary processes.
The pumps are based on the well-known HILGE technology and are further optimised to offer reliable operation even under the tough conditions encountered in cleaning processes.
The single-stage self-priming GHP pumps combine the best of the F&B-HYGIA end-suction pumps with the reliable HILGE technology. The result is an optimised pump range that comes with increased efficiency compared to traditional side-channel pumps and can be counted on for long operational life.
One pump – More applications
Due to the robust construction of the new GHP pumps they are able to handle liquids with a high content of air as is the case in CIP return systems.
In effect, this means that the same pump can be used for product conveyance as well as for the cleaning processes. Compared to side-channel pumps, GHP pumps are also less sensitive to handling products containing particles.
Low noise operation
The GHP pumps feature a new, unique hydraulic technology that allows the impeller to be adjusted to accommodate exact duty-point requirements.
This translates into a noise level significantly lower than compared to traditional side-channel pumps.
Specially designed for sanitary applications
The all-stainless steel GHP pumps have been specially designed for trouble-free operation in sanitary processes such as:
- Cleaning processes (CIP return)
- Evacuation of tanks and pipes
- Pumping liquids with a high gas content
- Pumping liquids in Food and Beverage industries.
PT. Andalan Inti Rekatama – GRUNDFOS Authorized Dealer – Service Partner LEADER Pump
Grundfos SP submersible pumps are renowned for their high efficiency and reliability throughout the range. Made entirely of corrosion-resistant stainless steel, SP pumps are ideal for a wide variety of applications.
Grundfos SP pumps represent state-of-the-art hydraulic design. Built to deliver optimum efficiency during periods of high demand, the SP pumps provide low long-term costs and high operating reliability regardless of the application.
The Grundfos SP range offers high efficiency, high resistance to sand and other abrasives, motor burnout protection, and easy maintenance. A complete monitoring and control system is available for constant optimisation of the pumping system.
Applications
The pumps are suitable for:
- Groundwater supply to waterworks
- Irrigation in horticulture and agriculture
- Groundwater lowering
- Pressure boosting
- Industrial applications.
Features and benefits
- State-of-the-art hydraulics provide high efficiency and low operating costs
- 100 % stainless steel inside and outside
- Sand resistant
- Resistant to aggressive water
- Motor burnout protection
- Dry-running protection
- Monitoring, protection and communication via the MP 204 protection unit and the R100 remote control.
PT. Andalan Inti Rekatama – GRUNDFOS Authorized Dealer – Service Partner LEADER Pump
The Grundfos DP pumps are designed for pumping drain water and groundwater from installations in or around private housing, farms and small industrial plants. These pumps are also ideal for flood-relief applications and as utility pumps in farming, industry, etc.
DP pumps are fitted with a suction strainer, on which the pump stands. The suction strainer allows for the passage of solid particles of up to 10 mm in size, which is the maximum free passage size through DP pumps. The strainer is easy to dismantle for cleaning or for inspection of the pump hydraulics.
The impeller for the DP range is of a semi-open multivane design. The impeller clearance can easily be adjusted simply by tightening or loosening the adjustment screws at the bottom of the suction cover.
Pumped liquids
The pumps are suitable for:
- Drainage and surface water
- Groundwater
- Industrial process water without solids or fibres.
Features and benefits
- Cable plug connection
- Unique clamp connection
- Specially designed lifting handle
- Unique cartridge shaft seal
- Modular design
- Heavy-duty ball bearings.
PT. Andalan Inti Rekatama – GRUNDFOS Authorized Dealer – Service Partner
