SKU: 8538470380

dda 30 4 fcm c pvc e c f 32i002fg 93244443

Sale price$1482.30 Regular price$1647.00
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Description

dda 30 4 fcm c pvc e c f 32i002fg 93244443The SMART Digital DDA C is a compact positive displacement diaphragm dosing pump with variable speed drive (stepper motor) and intelligent control electronics with minimum energy consumption. The SMART Digital Dosing series operates at full stroke length to ensure optimum accuracy, priming and suction, even for high viscosity or degassing liquids. Depending on the set capacity, the duration of the discharge stroke varies, ensuring an optimal, uniform

The SMART Digital DDA-C is a compact positive-displacement diaphragm dosing pump with variable-speed drive (stepper motor) and intelligent control electronics with minimum energy consumption. The SMART Digital Dosing series operates at full stroke length to ensure optimum accuracy, priming and suction, even for high-viscosity or degassing liquids. Depending on the set capacity, the duration of the discharge stroke varies, ensuring an optimal, uniform and continuous discharge flow. The click-stop mounting plate allows installation in three different positions without using any additional accessories. The control cube can be easily turned to the front, left or right position. The click wheel and the multi-coloured backlit graphic plain-text LC display enable intuitive commissioning and operation. The control elements are protected by a transparent cover. The DDA-C has built-in connectivity that allows easy setup and tracking via the Grundfos GO app as well as easy integration into a Modbus RTU or TCP bus system. The sensor-based FlowControlMeasurement (FCM) system detects malfunctions such as air bubbles, line breaks or overpressure directly in the dosing head and displays them in plain text in the alarm menu. FCM measures the actual pressure and flow rate and eliminates the need for additional monitoring and control devices (accuracy of ± 1.5 % of the set value in a trouble-free process). The measured pressure and flow are displayed and can be integrated into the process control system, e.g. SCADA. In addition, the AutoFlowAdapt function automatically adjusts the pump speed to the process conditions to maintain the target flow even with fluctuating back pressure or air bubble formation (degassing drive strategy). The dosing head includes the following parts:

  • A durable and chemically resistant full PTFE diaphragm,
  • Double ball valves for maximum dosing accuracy,
  • A deaeration valve for easy start-up,
  • A pressure sensor.

Operation modes and functions:

  • Manual dosing in ml/h, I/h or gph.
  • Pulse control in ml/pulse (incl. memory function).
  • Analog control, 0/4-20 mA (scalable).
  • Pulse-based batch function in ml, l or gal.
  • Timer-based batch function (dosing timer cycle or week).
  • Fieldbus control (integrated Modbus RTU and TCP; Profibus DP, Profinet and Ethernet IP via CIM/CIU models).
  • Cloud control and monitoring (Smart Digital Chempairing Suite; Grundfos Connect).

Other features:

  • The sensor-based FlowControlMeasurement (FCM) system detects malfunctions such as air bubbles, line breaks or overpressure directly in the dosing head.
  • Measurement of actual pressure and flow.
  • AutoFlowAdapt automatically adjusts the pump speed to the process conditions (what you set is what you get).
  • Degassing drive strategy in case of air bubbles detected in the dosing head and Auto Deaeration during pump standby avoids stand-still due to air-locking.
  • ConditionCheck analyses the pump and the system where the pump is installed.
  • Two SlowMode steps (anti-cavitation), 50 % and 25 % maximum flow, e.g. for high-viscosity or degassing liquids.
  • Max. Capacity to limit the capacity of the pump to a set maximum.
  • Service information display to show when service and which wear-part order numbers are required.
  • Two-step key lock function to protect the pump against unauthorised access.
  • Multi-parameter dashboard function to provide further information on up to 4 parameters.
  • Counter for total dosed volume (resettable), operating hours, etc.
  • Save, copy and load customised settings as well as reload factory settings.

Signal inputs/outputs:

  • Input for pulse, analog 0/4-20mA, external stop.
  • Input for low-level and empty-tank signal.
  • Two potential-free output relays for max. 30 V AC/DC (configurable, e.g. alarm, stroke signal, pump dosing, timer etc.)
  • Output analog 0/4-20mA.
  • Fieldbus control (Integrated Modbus RTU and TCP; Profibus DP, Profinet and Ethernet IP via CIM/CIU models).
  • Cloud control and monitoring (Smart Digital Chempairing Suite; Grundfos Connect).

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 8538470380

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4.9 ★★★★★
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Product Reviews
S
Verified Purchase
S_
Grantham, US
★★★★★ 5
Just buy it and you will love it
Color: Khaki
Amazing chair. It looks as expected. Perfect fit for my needs. It has great lumbar support and value of my money. There is no squealing noise and pretty strong and sturdy. I am 5 feet and 8 inches and fits for me. Very easy to setup. I love that they have given extra and back up screwes for every component. Easy setup for one person and very easy setup for two people. I was able to set this up under 20 minutes. Screws and instructions are on the box and inside the seat package. Overall good purchase and happy customer and will update after couple of months.
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Reviewed in the United States on April 20, 2026
R
Verified Purchase
R. Jernigan
West Palm Beach, US
★★★★★ 4
A step up, but still room for improvement
Color: Cream Khaki (Pu Leather Seat)
Yikes, the *shilling* on the reviews for this thing! Yes, it's a chair. There are a lot of mesh-backed office chairs for sale here. None of them are likely to change your life. I can say this chair is a step up in quality from the few others I've purchased online in the past. All hardware below the seat cushion is heavy steel; you won't be breaking this stuff in the near future--and it's a nice change from the almost-entirely-plastic offerings I see elsewhere. The provided hardware was packaged intelligently: it's all screws (and not too many of them) with various lengths, but they all have the same size hex-head and the package includes a nice matching T-bar to install them; moreover, if you follow the instructions it's basically "use the screws labelled Step 1 now" then "use the screws labelled Step 2 now"--hard to get wrong. The best part of the chair is the lumbar support. It's why I selected this particular variant, and it was a good choice: it's firm and adjustable and makes a difference. The back is comfortable, and the general motion of the chair (rocking, locking, up/down, swivel, roll) is exactly as you'd expect. I don't like arms on my chairs: when they're down I rest my elbows there but they're always too high so it bothers my shoulders eventually, and when they're up my elbows bump into them. So I usually remove the arms entirely during assembly--and in this chair that wasn't too hard, but it does leave some slightly unsightly connection points hanging free. That's not a mark against the chair itself--just letting you know; at worst I could point out that this chair's arm movement is maybe a little more limited than usual. The worst thing about this chair, though, is the cushion. I got the leatherette seat, because it's supposed to be comfortable and easy to clean. In practice it's *not* comfortable at all: it's soft enough, sure, but it's also *very* hot and makes me squirm repeatedly to try to improve my comfort the longer I sit here. I suggest getting the mesh-bottom version, if you're going to get this model.
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Reviewed in the United States on March 30, 2026
K
Verified Purchase
Karina
Birmingham, US
★★★★★ 5
Ergonomic Desk Chair
Color: Nori Black (Pu Leather Seat), Color: Nori Black (Pu Leather Seat)
I am delighted with this chair. First of all, assembly was super easy, thanks to the instructions included in the box. The faux leather design combined with the mesh backrest gives it an elegant look while ensuring comfort. I love its size, it is substantial enough to feel supportive, yet not so bulky that it takes up too much space; this allows it to fit perfectly under my desk and helps me save room. The lumbar support makes it comfortable to work at my desk for hours on end, and I really appreciate that the armrests can be easily raised and lowered. It is incredibly comfortable and durable.
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Reviewed in the United States on June 3, 2026
I
Verified Purchase
Inna Herasymchuk
Louisville, US
★★★★★ 5
Definitely happy with this purchase!
Color: Nori Black (Pu Leather Seat), Color: Nori Black (Pu Leather Seat)
I’m really impressed with the MUXX.STIL Office Chair. I wanted something comfortable for long work days but also stylish enough to fit nicely into my space, and this chair ended up being exactly what I was looking for. The PU leather looks sleek and elegant, and the chair feels much more premium than I expected. It’s comfortable even after sitting for hours, with great back support and a soft cushion that doesn’t flatten out quickly. I also love how smoothly it rolls and adjusts. As someone who spends a lot of time working, editing content, and answering messages at my desk, having a comfortable chair truly makes a difference — and this one does. It made my workspace feel more put together and cozy at the same time. Definitely happy with this purchase!
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Reviewed in the United States on May 26, 2026
M
Verified Purchase
M
Los Angeles, US
★★★★★ 3
Nice-ish chair but not what I expected.
Color: Grey
Nice chair basically, good looking, and assembly went well, the wheels roll very nicely, lumbar support is good too, with comfy seat back. However, the "seat cushion" design itself is very odd, because the seat cushion is much thicker at the rear than it is at the front, thus you're constantly slipping off forward, always needing repeatedly to lift up and get back on the seat up further where you belong; while the seat tilt adjustments are of no help with this problem, no matter what setting you will be slipping off forward. The lever for adjusting reclining ability is very cumbersome and awkward to use. The arm rests are ok, comfy, but lack the ability to raise or lower, all you can do if flip it up totally out of your way. I wish I could return and exchange this chair for something better but there is no way this could easily be disassembled and returned in the box that is long since gone. This came in a box really super efficiently and very tightly packed, give them credit and kudos for the great packing design. Maybe, hopefully, the manufacturer has some suggestions for replacement when they see this review.
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Reviewed in the United States on November 7, 2025

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