DTS dosing tank stations are intended for storing and dosing liquids. Many different configurations can be selected flexibly to fulfil various dosing tasks. Due to the use of high-quality materials, DTS dosing tank stations can be employed for diverse dosing liquids. The selection of materials can be adapted via the configuration to match application and the selected dosing pump.
As they are easy to install, DTS dosing tank stations in combination with the digital dosing pumps DDA, DDC, DDE and DDI are the first choice in the matter of economic efficiency when adding liquids such as coagulants, disinfectants or neutralizing agents to a process in a precise and controlled way.

Components

•    Chemically resistant tank made of UV-stabilised, semitransparent or black polyethylene, in 6 sizes from 60 to 1000 litres, with embossed litre scale and PE screw cover
•    PE collecting tray
•    Handheld mixer or electric stirrer with level switch for dry-running protection
•    Rigid suction lance or foot valve made of PE, with 2-step level switch for dry-running protection and suction line to the dosing pump
•    PVC or PP injection unit with G 1/2 process connection
•    PE or PVC discharge line (10 m)
•    Drain valve
•    Filling armature with ball valve or dissolving hopper
•    Multi-function valve
•    Prepared for the installation of a dosing pump DDA, DDC, DDE, DMX 221 or DDI 60-10 including necessary assembly material like connectors, click-plate and screws depending on pump type

The Grundfos DMX range has proven its worth in dosing applications worldwide. With their robust diaphragm-based design and their high-quality motors DMX pumps require minimum maintenance and are best choice for many dosing applications. The DMX range is highly versatile: it covers a wide flow range and offers a variety of dosing head sizes, materials and accessories.

Accurate dosing – all the time

The diaphragm design ensures that the dosing flow variation is below ± 1.5 % and the linearity deviation is kept below 4 % at all times. This allows very precise dosing of your chemicals – as much as necessary, as little as possible.

Smooth and low-pulsation dosing

The DMX series combines sophisticated drive technolo¬gy and gear kinematics to ensure smooth and low-pulsation dosing without pressure peaks. This means less stress to all system components, such as tubes and valves, and leads to longer service intervals for the entire system.

Motors to match application needs

For applications with specific motor requirements, the versatile DMX range offers high-quality motors for 50 Hz, 60 Hz, 100 Hz (with Variable Frequency Drive VFD), as well as EX classified or ATEX-certified motors, if required.

Perfect material selection – for housing and liquid-wetted parts

The smaller DMX models have plastic housings offering chemical resistance and all the protec-tion necessary for many applications. The larger models have a robust cast-aluminium housing with epoxy coating to meet all application needs. Investment costs and running costs for spare parts are kept low over the years: A wide choice of materials for dosing head, valves and accessories allow selecting exactly the degree of chemical resistance required. All liquid-wetted parts need to be resistant to the chemicals used. The diaphragm is made of NBR and PTFE-coated.

Compact design – saves money and space

DMX pumps are available in 12 different dosing head sizes. Careful design work has kept them all very compact. This saves material costs and allows placing several pumps right next to each other in confined spaces. Double-head versions (DMX models 226 and 227) offer a very cost-efficient way to save space or to dose two different chemicals. The extra capacity offered by double-head versions can also be used to gain higher flow rates for a single chemical.

Accessories ensure perfect operation of the entire system

A wide range of accessories specially designed for the DMX series help optimise performance: AR control electronics (contact signal control with multiplier and divisor function, 4-20 mA control or stroke frequency control via display and key pad, low-level/empty signal), integrated relief valve, dosing controller, diaphragm leakage detection, servomotor for automatic stroke length adjustment, PTC motors with Variable Frequency Drive (VFD). We also offer system components such as pressure loading valves and pulsation dampers.

Applications

Disinfection, coagulation, flocculation, precipitation, etc. in:
•    Drinking water treatment
•    Waste water treatment
•    Pulp and paper industry
•    Textile industry
•    Cleaning water treatment
•    Food & Beverage industry, dairies
•    Cooling tower water treatment
•    Low-pressure boiler feed water treatment

Grundfos offers a wide range of dosing pumps representing state-of-the-art technology.
Digital Dosing solutions (SMART Digital, DME, DDI) set new standards in liquid chemical handling and accuracy. The operator can easily install and set up the pump to discharge exactly the quantity of dosing liquid required for the process in a unique drive- and flow-control management concept. The setting of the pump is displayed in ml/h, l/h or gph, and the operation mode is easily identified by means of icons.
The DMH mechanical hydraulic dosing pump range is the preferred choice for industrial and complex tasks. The DMH range is a series of extremely strong, robust pumps for applications where a substantial dosing range and high-pressure capabilities are required.

The APG pumps are submersible pumps with a horizontal discharge port. They are specifically designed for the pressurised pumping of sewage and wastewater containing destructible solids. The pumps are equipped with a cutter system which cuts destructible solids into small pieces so that they can be led away through pipes of a relatively small diameter. The pumps are available with or without control box and level switch. Pumps without control box must be connected to a separate pump controller with motor starter.

Unilift KP pumps are submersible drainage pumps suitable for both temporary and permanent free-standing installation. They can be used for pumping drain water or grey wastewater. They are also suitable for installation in collecting tanks.
The Unilift KP is a single-stage drainage pump with semi-open impeller, designed for the pumping of drain water and grey wastewater. All Unilift KP pumps can be supplied with or without a level switch. The variants are designated as A, AV or M, for automatic or manual operation. The Unilift KP-AV variant for narrow pits is supplied with a non-return flap valve for installation in the outlet. The strainer is clipped onto the pump housing.
The Unilift KP. Single-stage, submersible, stainless steel drainage pump in a robust design with upward-pointing discharge port positioned on the top of the pump.The outer casing is made in one piece. The mains cable and the cable of the level switch are both connected to a single, vulcanized, water-tight plug which is inserted in a socket on the hermetically-sealed stator housing. The motor is a single- or three-phase synchronous canned motor with liquid-filled rotor chamber and water-lubricated bearings.
The motor is cooled by the pumped liquid flowing around it.

•    Enclosure class: IP 68
•    Insulation class: F

The motor incorporates automatic overload protection which cuts out the motor in the event of overload. When it has cooled to normal temperature, the motor restarts automatically.

Applications

The Grundfos Unilift KP pumps are designed for the pumping of:
•    Water and rainwater in horticulture
•    Water from rivers and lakes
•    Rainwater, drainage water and water from flooding
•    Water for filling/emptying containers, ponds, tanks, etc.
•    Effluents from showers, washing machines and sinks below sewer level
•    Pool water
•    Ditch drainage water
•    Groundwater (lowering applications)
•    Domestic effluents from septic and sludge-treating systems
•    Effluents from viaducts, underpasses, etc.
•    Drainage water from garage sprinkler systems.

The SEG range of grinder pumps from Grundfos is specifically designed for pumping effluent and untreated sewage in small communities or sparsely populated areas with no sewer systems or where gravitation systems are unsuitable.
Pressurised systems are the perfect choice for transfer of effluent and sewage, and the SEG range combines cost-effectiveness with maximum protection for the environment by facilitating the use of smaller pressure pipes for minimal investment costs.
The SEG range is designed to reduce energy consumption and to keep downtime costs to a minimum, while maintaining peak performance throughout the system life.

The Grundfos SLV and SL1 pumps are designed to handle unscreened sewage, effluent, large volumes of surface water and process water in municipal, utility and industrial applications.
The pumps are available with SuperVortex impellers (SLV) or high efficient channel impellers (SL1), allowing for free passage of solids up to 100 mm in size.
The SLV and SL1 pumps are designed for permanent submerged installation, e.g. by means of an auto coupling or a guide rail system, or for free-standing installation on a ring stand with a flexible pipe connection.

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.

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.

Grundfos end-suction pumps are used in water supply, industrial pressure boosting, industrial liquid transfer, HVAC (heating, ventilation and air-conditioning), and irrigation.
Grundfos end-suction pumps are multi-purpose pumps suitable for a variety of different applications requiring reliable and cost-efficient supply. End-suction pumps are used in five main areas of application: water supply, industrial pressure boosting, industrial liquid transfer, HVAC and irrigation.

The Grundfos NB/NBG pumps are all non-self-priming, single-stage, centrifugal volute pumps with axial suction port, radial discharge port and horizontal shaft. The NB/NBG range consists of close-coupled pumps with their main dimensions in accordance with either EN733 or ISO2858.