Product

DDA 30/4-AR-PP/E/C-F-31U2U2FG – Grundfos Dosing Pump

  • Digital Dosing Pump
  • 0.03-30 lph, 4 bar
  • Polypropylene/EPDM/Ceramic
  • 110-230/1/50-60
  • 1000:1 turndown

Alldos, Grundfos Alldos dosing pumps, the SMART Digital generation DDA, DDC and DDE with powerful variable-speed stepper motor brings state-of-the-art technology to perfection. Combined expert knowledge and the new patented solutions set future standards. Traditional technologies such as stroke length / stroke frequency adjustment with synchronous motor or solenoid drive become a thing of the past.

Flows 0.0025-30 lph, pressures to 16 bar, 100-240V/1ph/50-60hz, IP65 and available in PVC/PP/PVDF or 316SS all complete with full PTFE diaphragm.

Unique flexibility with only a few variants

The included click-stop mounting plate makes the new pump more flexible. Three different positions are possible without using any additional accessories, such as wall brackets. Service and pump exchange can now be done easily and fast just by clicking the pump in and out of the mounting plate. The control cube on the DDA and DDC pump can be lifted and turned easily into three different positions: front, left or right.

A turn-down ratio of up to 3000:1 (DDA 7.5/16 only), all other 1000:1, a wide supply voltage range (100-240 V; 50/60 Hz), combined connection sets and other features reduce the models and variants to a minimum.

Variants:

  • DDE B, DDE P
  • DDC A, DDC AR
  • DDA AR, DDA FC, DDA FCM

Precise and easy setting / usability and interaction

The operator can easily install the pump and set it to discharge exactly the quantity of dosing liquid required for the application. In the display, the setting of the pump is read out directly, the flow is shown in ml/h, l/h, or gph. The click wheel (turn-and-push knob) and the graphical LC display with plain-text menu in more than 20 languages make commissioning and operation intuitive. As the LCD is backlit in different colours, the pump status can be seen from a distance (traffic-light concept).

Thanks to a variety of operation modes, signal inputs and outputs, the pump can easily be integrated into every process.

Advanced process reliability

An intelligent drive and microprocessor control ensures that dosing is performed precisely and with low pulsation, even if the pump is dosing high-viscosity or degassing liquids. Malfunctions, caused e.g. by air bubbles, are detected quickly by the maintenance-free FlowControl system and then displayed in the alarm menu. The AutoFlowAdapt function automatically adjusts the pump according to the process conditions, e.g. varying backpressure. The integrated flow measurement makes additional monitoring and control equipment redundant.

Designed to save costs

In general, the investment for a dosing pump installation is low compared to its life cycle costs including the cost of the chemicals. The following features make the SMART Digital DDA, DDC and DDE pumps contribute to low life cycle costs:

No under-dosing or overdosing due to high dosing accuracy and FlowControl.

Longer maintenance intervals thanks to the universal chemical resistance of the full-PTFE diaphragm

Reduced energy consumption thanks to state of the art drive technology.

Operating modes, Inputs, outputs:

  • Manual
  • 0/4-20mA control including scaling of analogue input
  • Pulse control
  • Batch dosing
  • Timer control
  • Slow mode for viscous chemicals
  • Remote start/stop
  • Input for low level
  • Calibration mode
  • Auto-deaeration (DDA only)
  • Service display
  • 2 alarm outputs
  •  4-20ma output
  • Flow Control (FC, DDA FC & FCM only)
  • Flow Control & Measurement (FCM, DDA FCM only)
  • Pressure monitoring (DDA FC & FCM only)
  • Optional bus communication (DDA models only)

Additional information

Weight4 kg
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Les Bunce

Hire Business Manager

Les Bunce is Hire Business Manager. He leads the WES Hire Business responsible for managing the supply of our Temporary Chemical Dosing hire fleet on both a planned and emergency basis. Les has over 25 years’ experience in the hire industry and fully understands our customers’ hire requirements.

Patrick Fisher

Projects Director

Patrick Fisher is Projects Director. He leads the business stream responsible for project management, design, engineering, manufacture and delivery of “Capital project” chemical dosing systems. A degree qualified engineer with over 10 years’ experience working in fluid delivery solutions to the water, general industrial, petrochemical, and food & beverage industries.

Bob Cook

Senior Proposals Manager

Bob Cook is Senior Proposals Manager. After completing a traditional engineering apprenticeship at the Royal Aircraft Establishment, Bob was one of the original partners who started the business in 1986. Bob now applies his considerable experience to developing proposals & solutions to meet customer requirements, as well as providing technical support & passing on knowledge & expertise to colleagues across the wider WES business.

Ian Price

Dosing Products Business Manager

Ian Price is WES Dosing Products Business Manager, leading the business stream responsible for delivering a wide range of standardised chemical dosing packages, ad-hoc dosing needs and ‘off the shelf’ dosing products & solutions. A mechanical engineer with over 20 years’ experience in fluid handling solutions into the water, petrochemical, pharmaceutical and food & beverage markets.

Jamie Cole

Operations Director

Jamie Cole is Operations Director. Jamie joined the business in 2018 bringing career long experience in a variety of operational roles – including service delivery to the property and utilities sectors. Jamie is responsible for the management of all operational activities of the business including the repair, maintenance & refurbishment business stream, and our site installation and workshop manufacturing teams. Jamie also forms part of the senior management team of WES.

Graham Ward

Business Development Director

Graham Ward is Sales and Marketing Director. His extensive experience includes a number of senior roles working for various SMEs and large organisations in the water, power generation, petrochemical, marine and food & beverage industries. As a qualified marine engineer, Graham has established his career in Sales and Business Development and is responsible for the business development, marketing and sales of systems, products and services across WES.

Carl Millington

Non-Exec Director

Carl joined WES as Non-Exec chairman following an appointment via the Business Growth Service to assist the business with growth strategy. A highly experienced Business Mentor, Coach, Managing Director & Non-Exec Chairman, having led product, manufacturing, contracting and service provider businesses for nearly 30 years. A strong track record of market, sales and profit growth within a diverse range of sectors.

Core competencies include business growth strategies, board & business leadership, strategic planning, sales & marketing management, P&L & balance sheet management, acquisitions, divestments, outsourcing, TUPE transfer, mentoring & coaching.

Kevin Wheeler

Managing Director

Kevin Wheeler is Managing Director. Kevin trained as an Engineer at the Royal Aircraft Establishment and joined the business in 1989. Kevin now leads the Board of Directors setting strategy and defining priorities to meet the business objectives & growth aspirations whilst adding experience to technical issues where required.