SKU: 55298048130

dda 30 4 fcm c pvc e c f 32u2u2fg 93244442

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Description

dda 30 4 fcm c pvc e c f 32u2u2fg 93244442The 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).

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SKU: 55298048130

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Skylar
Fort Morgan, US
★★★★★ 5
Buy. Read. ReRead. Yesterday.
Format: Hardcover
Must buy. Must read. 10/10
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Reviewed in the United States on March 10, 2026
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Emma
San Leandro, US
★★★★★ 5
Electrifying
Format: Kindle
Talia Bhatt’s Trans/Rad/Fem is a powerful and thought-provoking collection of essays that delves deep into the intersection of radical feminism and trans liberation. This book challenges the idea that trans and radical feminism are at odds, instead arguing that transfeminism is a natural extension of radical feminist thought. Bhatt’s sharp, compelling writing makes the case that a materialist, radical transfeminism is key to dismantling the oppressive structures of patriarchy. What makes Trans/Rad/Fem such a captivating read is the way Bhatt blends academic analysis with personal narrative. Her essays are intellectually rigorous, yet accessible and relatable, striking a perfect balance between theory and lived experience. The electrifying prose has the profound impact of books like Stone Butch Blues. There’s something incredibly powerful in the way Bhatt’s words cut through, offering fresh perspectives on issues that often feel tangled or misunderstood. The essays feel like a conversation with someone who’s been thinking deeply about these subjects for a long time, offering not just insight but a vision for a different, more inclusive future. Some readers have noted that familiarity with radical feminist theory will enhance the experience, but even for newcomers, the book offers eye-opening and challenging ideas. Trans/Rad/Fem has clearly made a mark. Bhatt’s ability to engage readers while encouraging critical thought is part of what makes this collection so important. Whether you’re a seasoned feminist theorist or someone looking to understand more about the intersections of gender and social justice, this book is an essential read.
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Reviewed in the United States on February 13, 2025
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Phoebe Cook
Natrona Heights, US
★★★★★ 5
this is the book you’re looking for
Format: Paperback
I’d just finished reading Jules Gil-Peterson’s A Short History and felt a little unsatisfied and uncomfortable with all the orientialism. I picked this up and was immediately sure I had the antidote. Bhatt is clear, direct, and uncompromising. She avoids filler and gets right to the heart of things—“how is this not like blackface?” gets dealt with more thoroughly and decisively than I have ever seen it within the first few pages. She reveals the transmisogyny lurking in even nominally queer social and intellectual movements, and also finds pockets of beautiful solidarity and common ground in some surprising places. Above all, her love for women shines through every word. This book cleared up some misconceptions I had, made me cry, and will make me a better partner and comrade to trans women. Buy it.
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Reviewed in the United States on August 4, 2025
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Samrat Basani
Pawtucket, US
★★★★★ 5
Excellent essays in a brilliant book
Format: Paperback
This is a really excellent book. A lot of anthologies of essays have great essays in them, as this one does, but not all of them work as well as a cohesive text as Trans/ Rad/Fem does. I'd recommend this for anyone interested in transfeminism, even if you'd already read individual essays from Bhatt's newsletter by the same name. As with the essays in their newsletter format, The Third Sex and The Questions Has an Answer were my favorite. Bhatt's writing has such force and clarity that I look forward to reading whatever she chooses to write about next.
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Reviewed in the United States on February 25, 2025
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Jade
Natrona Heights, US
★★★★★ 5
Absolutely brilliant
Format: Kindle
An absolute tour de force reckoning with decades of feminist scholarship and theorizing about trans feminine bodies and motivations. Succinctly and pithily describes the hegemonic culture’s understanding of transsexual women and demands an accounting from the hegemony’s enablers on their treatment of all marginalized queer and especially trans people.
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Reviewed in the United States on February 14, 2025

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