GRUNDFOS DATA BOOKLET

DDA 7.5-16 AR-PVC/V/C with access. Grundfos pump 97974077

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Printed from Grundfos Product Centre [2018.06.003]

Position Qty. Description1 DDA 7.5-16 WITH ACCESS.

Note! Product picture may differ from actual product

Product No.: On requestDDA 7.5-16 AR-PVC/V/C WITH ACC

The SMART Digital DDA is a compact positive displacement, diaphragm dosing pump withvariable-speed drive (stepper motor) and intelligent control electronics with minimum energyconsumption. The SMART Digital Dosing series operates at full stroke length to ensure optimumaccuracy, priming and suction, even for high-viscosity or degassing liquids. The duration of eachdischarge stroke varies according to the capacity set, resulting in optimum smooth and continuousdischarge flow.The click-stop mounting plate allows installation in three different positions without using any additionalaccessories. The control cube can be turned easily into front, left or right position. The click wheel andthe multi-coloured backlit graphical, plain-text LC display make commissioning and operation intuitive.The control elements are protected by a transparent cover.

The dosing head is composed of:- Long lifetime and universal, chemically resistant full-PTFE diaphragm.- Double ball valves for highest dosing accuracy.- Deaeration valve for easy start-up.

Operation modes:- 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 (ProfibusDP or Modbus with E-box).

Other features:- Auto deaeration during pump standby to avoid breakdowns due to air-locking.- Two SlowMode steps (anti-cavitation), 50 % (maximum flow: 3.75 l/h) and 25 % (maximum flow:

1.88 l/h), e.g. for high-viscosity or degassing liquids.- Service information display to show when service and which wear-part order number is required.

- Two-step key lock function to protect the pump against unauthorised access.- Additional display function to provide further information, e.g. the actual mA input signal.- Counter for total dosed volume (resettable), operating hours, etc.- Save and load customised settings as well as reload of 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 communication interface (GeniBus, also for additional Profibus DP E-box to retrofit).

Installation set includes:- Foot valve with strainer and weight (with two level switch).- Injection unit.- 6 m PE (ETFE with PVDF dosing head) discharge hose.- 2 m PVC (ETFE with PVDF dosing head) suction hose.- 2 m PVC deaeration hose (4/6 mm).- 5 m Control cable for all in and output signals.

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Printed from Grundfos Product Centre [2018.06.003]

Position Qty. Description- 5 m Control cable for potential-free output relays.

Controls:Control variant: ARLevel control: YESAnalog input: 0/4-20 MAPulse control: YESExt. Stop input: YESAnalog output: 0/4-20 MAOutput relays: 2Bus communication: YES

Liquid:Pumped liquid: WaterLiquid temperature range: -10 .. 45 °CLiquid temperature during operation: 20 °CDensity: 998.2 kg/m³

Technical:Type key: DDA 7.5-16 AR-PVC/V/C WITH ACCMax. Flow: 7.5 l/hMax. flow in slow mode 50%: 3.75 l/hMax. flow in slow mode 25%: 1.88 l/hMin flow: 2.5 ml/hTurn-down ratio: 1:3000Approvals on nameplate: CE,CSA-US,NSF61Valve type: StandardMaximum viscosity at 100 %: 50 mPasMaximum viscosity in slow mode 50 %: 1800 mPasMaximum viscosity in slow mode 25 %: 2500 mPasAccuracy of repeatability: 1 %

Materials:Dosing head: PVC (Polyvinyl chloride)Valve ball: CeramicGasket: FKM

Installation:Range of ambient temperature: 0 .. 45 °CMaximum operating pressure: 10 barInstallation set: YESInstallation type: No installation setPump inlet: 4/6, 6/9, 6/12, 9/12 mmPump outlet: 4/6, 6/9, 6/12, 9/12 mmMax. Suction lift during operation: 6 mMax. Suction lift during priming: 2 m

Electrical data:Maximum power input - P1: 24 WMains frequency: 50 HzRated voltage: 1 x 100-240 VEnclosure class (IEC 34-5): IP65 / NEMA 4XLength of cable: 1.5 mType of cable plug: EUInrush current: 25A at 230V for 2ms

Others:Net weight: 3 kgGross weight: 4 kgColor: RED

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Printed from Grundfos Product Centre [2018.06.003]

On request DDA 7.5-16 WITH ACCESS. 50 HzH

[bar]

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Q [l/h]0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5

DDA 7.5-16 WITH ACCESS., 50Hz

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Printed from Grundfos Product Centre [2018.06.003]

H[bar]

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DDA 7.5-16 WITH ACCESS., 50Hz

17.5 110

168120

1054 6xØ

251

280

G 5/8"

196

46.5

171612420

1

Description ValueGeneral information:

Product name: DDA 7.5-16 WITHACCESS.

Product No: On requestEAN number: On requestTechnical:

Type key: DDA 7.5-16 AR-PVC/V/CWITH ACC

Max. Flow: 7.5 l/hMax. flow in slow mode 50%: 3.75 l/hMax. flow in slow mode 25%: 1.88 l/hMin flow: 2.5 ml/hTurn-down ratio: 1:3000Approvals on nameplate: CE,CSA-US,NSF61Valve type: StandardMaximum viscosity at 100 %: 50 mPasMaximum viscosity in slow mode 50 %: 1800 mPasMaximum viscosity in slow mode 25 %: 2500 mPasAccuracy of repeatability: 1 %Materials:Dosing head: PVC (Polyvinyl chloride)Valve ball: CeramicGasket: FKMInstallation:Range of ambient temperature: 0 .. 45 °CMaximum operating pressure: 10 barInstallation set: YESInstallation type: No installation setPump inlet: 4/6, 6/9, 6/12, 9/12 mmPump outlet: 4/6, 6/9, 6/12, 9/12 mmMax. Suction lift during operation: 6 mMax. Suction lift during priming: 2 mLiquid:Pumped liquid: WaterLiquid temperature range: -10 .. 45 °CLiquid temperature during operation: 20 °CDensity: 998.2 kg/m³Electrical data:Maximum power input - P1: 24 WMains frequency: 50 HzRated voltage: 1 x 100-240 VEnclosure class (IEC 34-5): IP65 / NEMA 4XLength of cable: 1.5 mType of cable plug: EUInrush current: 25A at 230V for 2msControls:Control variant: ARControl panel: FRONT-MOUNTEDLevel control: YESAnalog input: 0/4-20 MAPulse control: YESExt. Stop input: YESAnalog output: 0/4-20 MAOutput relays: 2Bus communication: YESOthers:Net weight: 3 kgGross weight: 4 kgColor: RED

17.5110

168120

10546xØ

251280

G 5/8"

1716124

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Printed from Grundfos Product Centre [2018.06.003]

On request DDA 7.5-16 WITH ACCESS. 50 Hz

Note! All units are in [mm] unless others are stated.Disclaimer: This simplified dimensional drawing does not show all details.

17.5

110

168

120

105

46

xØ

25128

0

G 5

/8"

196

46.5

1716

124

201

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Printed from Grundfos Product Centre [2018.06.003]

Exploded view

301a

219

92

7

7a

77

301a

92

11

9

51

100

49

105

45

215a

215

18

217215a

534a534

531531a

28

17

251d

251a

6

11b

66a

67

530530a

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Printed from Grundfos Product Centre [2018.06.003]

Sectional drawing (TM058200 for TPE2,TPE3)

4

2 13

5

TM058200

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Printed from Grundfos Product Centre [2018.06.003]

Exploded view ( TM057026 for MGE model H/I )

251d

251b

290

287277a

286

277

273a

273

268268a289a289

288b288288a

251a

252b

156c

159d

156b

156d188

275a

153

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178

185

192

191

159e

156c 156

151152

266

187

291

293

252a

172

150

287a

502

273b

157

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Disclaimer: The information about the Grundfos pump in this document may be outdated. Data may be subject to alterations without further notice. Please contact us to verify the data above is still accurate/up-to-date.

All information is copyright Grundfos.

info@lenntech.comhttps://www.lenntech.comtel. +31 152 610 900 fax. +31 152 616 289