The Grundfos range of recirculation pumps is the product of decades of engineering experience. Created to handle large flows with low heads, the SRP models are equally suitable for wastewater treatment plants and flood control.

SRP units come in three main variants – DN 300, 500 or 800 mm, fitted with motors from 0.8 to 24 kW. The units share many features with the AMG and AFG gear-driven mixers and flowmakers, making them instantly familiar to service staff and facilitating easy maintenance.
Recent developments include a triple sealing system for maximum protection of the mechanical shaft seal and a bracket that facilitates very easy installation.
Applications
The pumps are suitable for the following applications:
- Re-circulation of sludge within sewage treatment plants
- Storm water pumping.
Features and benefits
- High efficiency stainless steel propeller
- Electronic leak sensor in gearbox/shaft seal housing
- Wide performance range
- Strong axial gear in slim design for high hydrodynamic efficiency
- Integrated overload and overheat protection
- Good self-cleaning capabilities
PT. Andalan Inti Rekatama – GRUNDFOS Authorized Dealer – Service Partner LEADER Pump
The Grundfos DW pumps are robust, portable submersible pumps with a vertical discharge port.
Available with motors from 0.8 to 20 kW, they are designed to handle dewatering at construction sites, at excavation sites, in building drainage and in similar applications where there is a need to pump raw water or/and at high pressure.
DW main parts are made of aluminium in order for them to be as light as possible. This factor, in combination with the compact design and the high-pressure capabilities, make DW pumps portable and easy to handle. The semi-open type impeller is made of high-chrome stainless steel (550HB) in order to increase wear resistance. DW.50.08 (only) has a polypropylene motor housing.

Applications
DW pumps are excellent for dewatering and draining jobs. The portable design, wear resistant parts and high pressure capabilities ensure the reliability, sustained performance, user-friendliness and ease of servicing that are necessary in demanding dewatering applications at sites such as:
- Construction sites
- Excavations
- Tunnels
- Steel works
- Fish ponds
- Underground parking drainage Industrial drainage pits.
Features and benefits
- Durability
- Portability
- User-friendliness
- Ease of servicing High pressure capabilities Control options.
PT. Andalan Inti Rekatama – GRUNDFOS Authorized Dealer – Service Partner
The AeroJet is a self-aspirating aerator that keeps aerobic treatment processes running and also helps to avoid odour problems in wastewater storage, as anaerobic zones can be eliminated.
AeroJets are a flexible way of providing both mixing and aeration with the same device. AeroJets are easy to install, operate and maintain, as they do not require any blowers, air distribution piping or control valves.

The flexibility of the AeroJet offers distinct advantages for upgrading aeration capacity to meet increased oxygen demands. It can be used either alone or as a supplement to existing aeration equipment.
AeroJets are available in many different sizes to ensure that all needs can be met, no matter what the size and shape of the tank.
Applications
AeroJets are ideal in applications where aeration is needed to enhance biological processes, to avoid odour problems, or to supply oxygen in:
- Municipal or industrial WWTP
- Stabilisation and equalisation tanks
- Fish farms
Or in applications where flexible oxygen supply is essential:
- Refurbishment of treatment plants
- Boosting oxygen supply at peak loads
- Avoiding oxygen depletion in lakes or channels
Features and benefits
- Handles both aeration and mixing
- Self-aspirating aerator – no need for additional air distribution pipes, blowers or valves
- Submerged aerator increases oxygen transfer time
- Submerged installation reduces noise and limits aerosol formation at the tank
- Available as a free-standing unit or with the pump on an auto-coupling
- Can easily be installed or repositioned even while processes are running
- Fit all tanks, regardless of size and shape
- Made completely in stainless steel for strength
- Fed by a submersible wastewater pump of the SL, SE or S types
- Large free passage – no clogging
PT. Andalan Inti Rekatama – GRUNDFOS Authorized Dealer – Service Partner