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GRUNDFOS allDOS product information

dmH 28x

The solution for complex dosing tasks

measurements

measurements

h a d

DMH 8x

Electric actuator

b

Pneumatic actuator

e

Ø 9mm

g

k

f i m1 m2

k

j c n l1 l2

measurements in mm g h i j

85.5 85.5 16 19 19 19 16 465 43 706 80 80 814 700 15 15 60 333 333 333 60 16 16 10 5 5 5 10

dmH model

280 281 283 285 286 287 288

a

365 348 437 510 510 490 45

b

336 336 493 553 553 553 49

c

97.5 97.5 156 145.5 145.5 170 156

d

19 19 54 74 74 74 155.5

e

14 155 11 179 34 08 08

f

15 15 185 40 40 40 185

k

114 114 18 187 191 176 173

l1

30 50 35 45 45 45 35

l2

43 43 413 40 40 40 413

n

117.5 117.5 180 194.5 194.5 194.5 180

m1

180 180 5 90 90 90 5

m2

180 180 300 38 38 38 300

Drilling scheme

Etron Profi for DMH model 80 and 81

total 203 71

Measurements in mm

m1 1) / m2 2)

f 1) / i 2)

330

174

14

Ø 9mm

c n

2. 2

1) Simplex pump ) Duplex pump

108

45° 90

pump types

dmH model 28x

· Simplex or duplex pumps (one or two dosing heads), capacity spectrum 1.45 l/h up to x l/h · Various combinations of dosing heads and materials suitable for applications in chemical engineering · DMH model 80/81 optionally with Etron Profi electronics

DMH 8x

pump types

50 Hz 60 Hz 100 Hz 2) Vstroke

[l/h] 1) [n/min] [l/h] 1) [n/min] [l/h] 1) [n/min] [cm3]

motor capacity [kW] connections standard ptc

resistor 2)

Weight [kg]

simplex pump duplex pump

dmH model

simplex pump duplex pump

pmax 50 bar

85 111 170 56 73 11 146 10 133 04 67 88 134 170 11 146 5.3 5.3 5.3 5.3 3/4" 3/4" 3/4" 3/4" 1.1 1.1 1.1 1.1 1.5 1.5 1.5 1.5 45 45 45 45 71 71 71 71 286-85 286-111 286-170 286-222 286-85/2 286-111/2 286-170/2 286-222/2

pmax 100 bar

4. 6.4 8 9.6 19 7 33 40 55 0 40 5 70 80 105 9 63 96 10 144 54 75 9 11 153 8 56 73 98 11 146 .4 5 7.7 9.6 3 3 40 48 4 48 63 84 96 35 76 115 144 65 90 110 134 33 67 88 118 134 4 8, 38 54 40 80 105 58 16 108 150 56 11 146 1.1 1.1 1.1 1.1 1.1 6 6 6 6 6 1 1 1 1 1 1 1/4" 1/4" 1/4" 1/4" 1/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 0.18 0.18 0.18 0.18 0.18 0.55 0.55 0.55 0.55 0.55 1.1 1.1 1.1 1.1 1.1 1.1 0.18 0.18 0.18 0.18 0.18 0.55 0.55 0.55 0.55 0.55 1.5 1.5 1.5 1.5 1.5 1.5 13 13 13 13 13 36 36 36 36 36 43 43 43 43 43 43 19 19 19 19 19 54 54 54 54 54 64 64 64 64 64 64 281-2 281-4.2 281-6.4 281-8 281-9.6 283-19 283-27 283-33 283-40 283-55 285-20 285-40 285-52 285-70 285-80 285-105 281-2/2 281-4.2/2 281-6.4/2 281-8/2 281-9.6/2 283-19/2 283-27/2 283-33/2 283-40/2 283-55/2 285-20/2 285-40/2 285-52/2 285-70/2 285-80/2 285-105/2

pmax 200 bar

1.45 . .81 3.41 7.5 10.4 1.8 15.5 1 18 3 31 36 50 63 96 10 144 54 75 9 11 153 56 73 98 11 146 1.74 .66 3.37 9 1.5 15.4 18.6 8 37 43 76 115 144 65 90 118 134 67 88 118 134 .9 15 1 36 46 16 108 150 11 146 0.36 0.36 0.36 0.36 .33 .33 .33 .33 .33 6 6 6 6 6 4/6 4/6 4/6 4/6 8/10 8/10 8/10 8/10 8/10 8/10 8/10 8/10 8/10 8/10 0.18 0.18 0.18 0.18 0.55 0.55 0.55 0.55 0.55 1.1 1.1 1.1 1.1 1.1 0.18 0.18 0.18 0.18 0.55 0.55 0.55 0.55 0.55 1.5 1.5 1.5 1.5 1.5 13.7 13.7 13.7 13.7 36 36 36 36 36 45 45 45 45 45 0.4 0.4 0.4 0.4 54 54 54 54 54 71 71 71 71 71 280-1.3 280-2.2 280-2.5 280-3.3 288-7.5 288-10 288-13 288-15 288-21 287-18 287-23 287-31 287-36 287-50 280-1.3/2 280-2.2/2 280-2.5/2 280-3.3/2 288-7.5/2 288-10/2 288-13/2 288-15/2 288-21/2 287-18/2 287-23/2 287-31/2 287-36/2 287-50/2

1) l/h per dosing head, double litre capacity for duplex pumps. 2) with motor for frequency control

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technical data / functions

technical data

accuracy Suction height material motor connections

Dosing flow < ± 1%, linearity < ± 1% Max. 1m water column, flooded suction for pumps with a stroke number (n/min) of >75 Enclosure: aluminium, dosing diaphragm: PTFE, for dosing head and valves please see the respective table Three-phase A.C. motor 0-40 V/380-40 V (50/60 Hz), 440-480 V (60 Hz), IP 55/F; for other motors please see the respective table dmH 280: stainless steel pipe 4/6 dmH 281: stainless steel pipe 1/4" dmH 283 to 286: stainless steel pipe 3/4" dmH 287 to 288: stainless steel pipe 8/10

DMH 8x

functional description: Sectional drawing dmH 284

All DMH 8x pumps are equipped with the special Bitrac® drive with the active diaphragm protection system (AMS). The rotational energy is converted into a hydraulic energy (traction) via two hydrostatic systems, the piston with stroke control and the pressure relief valve. · The high-torque electric motor (1) drives the piston (6) via the worm gear (2) and the eccentric (3). The piston carries out a constant stroke, which is transformed into an adjustable dosing stroke by means of the easily adjustable control slide (5). · The position of the control slide is adjusted using the adjustment knob (15) with vernier, and thus the dosing stroke is determined. The average dosing flow can therefore be adjusted linear and continuously from 0 to 100%. The pressure relief valve (7) operates as both a pressure limiting valve and a permanent venting valve. · The surface of the patented diaphragm protection valve (9) rests on the dosing diaphragm (10). The diaphragm oscillates freely in the dosing head. · restoring spring (4) · residual degassing valve (8) · dosing head (11) · dosing head dearation valve (12) · Suction valve (13) · pressure valve (14) · measuring stick for hydraulic oil (16)

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motors

api 675 standard

DMH 8x

For applications in the petrochemistry we provide special versions of our DMH model 8x dosing pumps with API certificates.

motors

motor motor with ptc resistor flameproof motors for simplex and duplex pumps, with atEX rL 94/9/Ec* certificate motors for Etron profi, single-phase (1 ac) motor kits

dmH 280 / 281 dmH 283 / 285 / 286 / 287 / 288 dmH 28x 3 AC, 0-40/380-40 V, 50/60 Hz, 440-480 V, 60 Hz, IP 55/F 3 AC, 0-40/380-40 V, 50/60 Hz, 440-480 V, 60 Hz, IP 65/F 3 AC, 0-40/380-40 V, 50/60 Hz, 440-480 V, 60 Hz, IP 65/F, PTC resistor 30/400 V, 50 Hz, IP 65/F, II G EEx e II T3 30/400 V, 50 Hz, IP 65/F, II GD EEx de IIC T4 DMH models 285/286/287 with PTC resistor 30 V, 50 Hz, IP 65/F 115 V, 60Hz, IP 65/F NEMA 56 C and IEC BG, size 63 B 5 NEMA 56 C and IEC BG, size 80 B 14 NEMA 145 TC and IEC BG, size 90 B 14

dmH 28x

dmH 28x dmH 280 / 281 dmH 283 / 288 dmH 285 / 286 / 287

*) The European guideline 94/9/EC ATEX applies to all facilities and security systems which are used in a potentially explosive areas. Our DMH model 8x dosing pumps are examined and certified according to this guideline for non-electrical operating supplies. The motor versions EEX are certified by the manufacturer according to the ATEX guidelines for electrical operating supplies.

dosing head and valve versions

· Dosing of non abrasive and non combustible liquids material

dosing head Stainless steel Stainless steel Hastelloy C Valves Stainless steel Stainless steel Hastelloy C Valve seat Stainless steel PTFE PTFE Gasket Viton Viton Viton Valve ball Stainless steel Stainless steel Hastelloy C

options:

· Diaphragm leakage indication · Heating or cooling flange on request · Dosing head with electrical heating on request

DMH 87

5

Electronics / options

microprocessor electronics Etron profi

· 1.5 m of mains cable · Mains plug versions for: Europe, Switzerland, USA, Australia · Optionally with additional signal: empty pre-alert or stroke signal with Hall sensor description

Etron Profi for mounting on the terminal box, 115/30 V, 50/60 Hz Etron Profi for wall mounting, 5 m of cable to the pump, 115/30 V, 50/60 Hz

DMH 8x

Etron Profi for wall mounting

options:

Stroke sensor

· The stroke sensor is an inductive proximity switch with NAMUR output to DIN 1934 and 7.7-10 V DC with m of cable. Stroke sensor

dmH 280 / 281 dmH 283 / 288 dmH 285 / 286 / 287

order number

335-031 335-03 335-033

Electronic stroke preselection counter

· The stroke preselection is an electronic measuring system in an IP 55 plastic enclosure for control panel mounting to DIN 43700. Stroke preselection

0 V, 50/60 Hz, 5 W 110 V, 50/60 Hz, 5 W

order number

335-111 335-11

DMH 284 with stroke preselection

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Servomotors / Spare parts

Electric servomotor

· Block-proof synchronous motor with feedback potentiometer · Two limit switches · Special servomotors for the synchronous adjustment of both dosing units of duplex pumps Simplex pump

dmH 280 / 281 dmH 283 / 288 dmH 285 / 286 / 287

DMH 8x

Versions:

· 30 V, 50/60 Hz, IP 55 · 115 V, 50/60 Hz, IP 55, 1-phase · 4 V AC, 50/60 Hz, IP 55, 1-phase flameproof EEx d ll Bt 4 · 30 V, 50/60 Hz, IP 65 · 115 V, 50/60 Hz, IP 65

order number

384-511 384-51 384-513

duplex pump

dmH 280 / 281 dmH 283 / 288 dmH 285 / 286 / 287

order number

384-611 384-61 384-613

options:

· Simplex potentiometers 100 , 00 , 500 , 1000 , 5000 · Analog input 4-0 mA · Manual adjustment ON/OFF

pneumatic servomotor

· Pneumatic double piston part-turn valve actuator · Pneumatic position control with setpoint diaphragm · Operation air 5 bars, control air from 0. to 1 bar · Connections 1/8" female thread Simplex pump

dmH 280 to 288

order number

383-34

duplex pump

dmH 280 to 288 Please order 2 servomotors!

order number

383-34

DMH 85 with electric servomotor

Spare part sets

Comprising: · Gaskets for dosing head · Inner valve parts · 1 dosing diaphragm pump type

dmH 280 dmH 281 dmH 283 dmH 285 dmH 286 dmH 287 dmH 288

1) up to 00 bars ) up to 100 bars 3) valve seat / gasket / ball

dosing head stainless steel1) ptfE/Viton/stainless steel3) 553-81 553-83 553-85 553-86 stainl. steel/Viton/stainl. steel3) 553-1054 553-90 553-1314

dosing head Hastelloy c2) ptfE/Viton/Hastelloy c3) 553-1501 on request on request on request -

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Being responsible is our foundation Thinking ahead makes it possible Innovation is the essence

96681647 0307

15.820041 V4.0

En

Subject to change.

© Grundfos alldos dosing & disinfection ALLDOS Eichler GmbH www.grundfosalldos.com

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