ProMinent 10022 Operating instructions

Sigmas with hygienic pump head
Supplementary operating instructions
Target group: trained qualified personnel
Two sets of operating instructions are required for the safe, correct and proper operation of the metering pumps: this set of
supplementary instructions and the corresponding "Operating instructions for the diaphragm motor driven dosing pump
Sigma".
Both sets of operating instructions are only valid when read together.
EN
Part no. 986047 BA SI 098 08/21 EN
Please carefully read these operating instructions before use. · Do not discard.
The operator shall be liable for any damage caused by installation or operating errors.
The latest version of the operating instructions are available on our homepage.

Table of contents
1Product-specific part........................................................................ 3
1.1 Sigma 1................................................................................... 3
1.1.1 Performance data – Sigma 1................................................ 3
1.1.2 Dimensional drawings, Sigma 1........................................... 4
1.1.3 Spare parts lists for Sigma 1................................................ 5
1.1.4 Wetted materials.................................................................. 5
1.1.5 Performance diagrams, Sigma 1 with hygienic pump
head..................................................................................... 6
1.2 Sigma 2................................................................................... 7
1.2.1 Performance data – Sigma 2................................................ 7
1.2.2 Dimensional drawings, Sigma 2........................................... 8
1.2.3 Spare parts lists for Sigma 2................................................ 9
1.2.4 Wetted materials................................................................ 10
1.2.5 Performance diagrams, Sigma 2 with hygienic pump
head................................................................................... 10
1.3 Sigma 3................................................................................. 12
1.3.1 Performance data – Sigma 3.............................................. 12
1.3.2 Dimensional drawings, Sigma 3......................................... 13
1.3.3 Spare parts lists for Sigma 3.............................................. 14
1.3.4 Wetted materials................................................................ 15
1.3.5 Performance diagrams, Sigma 3 with hygienic pump
head................................................................................... 15
2 General information....................................................................... 17
2.1 Safety chapter....................................................................... 17
2.2 Storage and transport........................................................... 17
2.3 Installation, hydraulic............................................................. 18
2.4 Start up.................................................................................. 18
2.5 Maintenance.......................................................................... 18
2.6 Troubleshooting.................................................................... 19
2.7 Technical data....................................................................... 19
2.8 Standards and regulations.................................................... 19
3 Notes on cleaning metering pumps with hygienic pump head...... 20
3.1 Properties of wetted parts..................................................... 20
3.2 Cleaning by flushing.............................................................. 20
3.3 Cleaning, manual.................................................................. 23
3.3.1 Cleaning valves.................................................................. 23
3.3.2 Replacing the diaphragm................................................... 25
3.3.3 Checking the condition of the diaphragm rupture sensor... 27
Table of contents
2

1 Product-specific part
Should the information in these supplementary operating instructions and
the operating instructions for the pump contradict each other, the informa‐
tion in these supplementary operating instructions will take precedence!
1.1 Sigma 1
1.1.1 Performance data – Sigma 1
Type Minimum pump capacity at maximum
back pressure
Maximum
stroke rate
Priming lift Suction lift Connector
size
bar l/h ml/stroke Strokes/min mbar mbar DN
10022 10 24 5.5 73 200 500 10
10044 10 46 5.3 143 200 500 10
07065 7 68 5.5 205 200 500 10
Type Minimum pump capacity at maximum back pressure Maximum
stroke
rate
Priming
lift
Suction
lift
Con‐
nector
size
bar psi l/h gph ml/stroke Strokes/m
in
mbar mbar DN
10022 10 145 29 7.6 4.7 88 200 500 10
10044 10 145 55 21.4 4.5 172 200 500 10
07042 7 102 81.1 21.4 8.7 88 200 500 15
Type Minimum pump capacity at maximum
back pressure
Maximum
stroke rate
Priming lift Suction lift Connector
size
bar l/h ml/stroke Strokes/min mbar mbar DN
10022 10 30 4.7 88 200 500 10
10044 10 54 4.5 172 200 500 10
07065 7 66 4.7 200 200 500 10
All figures are guideline figures for water at 20 °C.
The priming lift applies to clean, moist valves, an empty suction line and
empty liquid end - with correct installation.
S1Ba with hygienic pump head at 50 Hz
operation
S1Ba with hygienic pump head at 60 Hz
operation
S1Cb with hygienic pump head
Product-specific part
3

1.1.2 Dimensional drawings, Sigma 1
P_SI_0207_SW-2
da1
160
212.5
130 71
60 60
420
28120
242
258
105.4
177
51 (219)
269
391
Fig. 1: Dimensional drawing of Sigma 1, S1Cb with hygienic pump head - dimensions in mm
da1 ≥ 150 mm = space to remove the dosing head
Dimensional drawing of Sigma 1, S1Cb
with hygienic pump head
Product-specific part
4

1.1.3 Spare parts lists for Sigma 1
B1284_3
7
6
5
3
2
8
1
4
Pos. Article Quantity Order no.
1 Single-hinge clamp (not included in the scope of delivery) - -
2* O-ring DIN 11864-R-12x3.5-EPDM 2 1110596
3 Connector section HD DN10 4435 2 1109467
4* O-ring DIN 11864-R-22x3.5-EPDM 6 1110595
5 Valve housing HD DN10 4435 2 1109441
6* Ball DIN 5401 D=5/8 G40 Al2O3 2 1110837
7* Valve seat HD DN10 4435 2 1109392
8* Multi-layer diaphragm S1_a d70x37 PTFE/EPDM 1935 1 1106069
* Contents of the spare parts kit
1.1.4 Wetted materials
Dosing head Valve seat / valve housing / connector section Seals Ball Diaphragm
1.4435 1.4435 EPDM * Al2O3PTFE
* O-ring DIN 11864 R
Sigma 1 with hygienic pump head
Product-specific part
5

1.1.5 Performance diagrams, Sigma 1 with hygienic pump head
p [bar]
S [%]
C [l/h]
C [l/h]
A
B
0 10 20 30 40 50 60 70 80 90 100
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
S1Ba Hygien.
07065
10044
10022
0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
07065
10044
10022
Fig. 2: A) Dosing rate C at maximum back pressure dependent on the
stroke length s. B) Dosing rate C dependent on the back pressure p.
p [bar]
S [%]
C [l/h]
C [l/h]
A
B
0 10 20 30 40 50 60 70 80 90 100
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
S1Cb Hygien.
07065
10044
10022
0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
07065
10044
10022
Fig. 3: A) Dosing rate C at maximum back pressure dependent on the
stroke length s. B) Dosing rate C dependent on the back pressure p.
Sigma 1 S1Ba with hygienic pump head
(50 Hz)
Sigma 1 S1Cb with hygienic pump head
Product-specific part
6

1.2 Sigma 2
1.2.1 Performance data – Sigma 2
Type Minimum pump capacity at maximum
back pressure
Maximum
stroke rate
Priming lift Suction lift Connector
size
bar l/h ml/stroke Strokes/min mbar mbar DN
16050 10 49 11.1 73 190 500 15
16090 10 87 10.9 132 190 500 15
16130 10 128 10.8 198 190 500 15
07120 7 122 27.8 73 150 500 25
07220 7 223 28.1 132 150 500 25
04350 4 356 30.0 198 150 500 25
Type Minimum pump capacity at maximum back pressure Max‐
imum
stroke
rate
Priming
lift
Suction
lift
Con‐
nector
size
bar psi l/h gph ml/stroke Strokes/
min
mbar mbar DN
16050 10 145 58 15.3 11.1 87 190 500 15
16090 10 145 102 29.9 10.9 156 190 500 15
16130 10 145 150 39.5 10.8 232 190 500 15
07120 7 100 145 38.2 27.8 87 150 500 25
07220 7 100 263 69.4 28.1 156 150 500 25
04350 4 58 418 110.3 30.0 232 150 500 25
Type Minimum pump capacity at maximum back
pressure
Priming lift Suction lift Connector
size
bar l/h ml/stroke mbar mbar DN
16050 10 60 11.1 190 500 15
16090 10 105 10.9 190 500 15
16130 10 129 10.8 190 500 15
07120 7 150 27.8 150 500 25
07220 7 270 28.1 150 500 25
04350 4 360 30.0 150 500 25
All figures are guideline figures for water at 20 °C.
The priming lift applies to a filled suction line and filled liquid end - with
correct installation.
S2Ba with hygienic pump head at 50 Hz
operation
S2Ba with hygienic pump head at 60 Hz
operation
S2Cb with hygienic pump head
Product-specific part
7

1.2.2 Dimensional drawings, Sigma 2
170
60 60
82.5
120
267
282
446
426
28
231
119
191
47.5
292.5
(245)
82.5
da1
P_SI_0208_SW
Fig. 4: Dimensional drawing of Sigma 2, S2Cb with hygienic pump head DN15 - dimensions in mm
da1 ≥ 150 mm = space to remove the dosing head
170
60 60
82.5
120
267
282
446
426
28
231
0.5 (339)
339.5
130
205
99
da1
P_SI_0209_SW
Fig. 5: Dimensional drawing of Sigma 2, S2Cb with hygienic pump head DN25 - dimensions in mm
da1 ≥ 150 mm = space to remove the dosing head
Dimensional drawings of Sigma 2, S2Cb
with hygienic pump head
Product-specific part
8

1.2.3 Spare parts lists for Sigma 2
B1284_3
7
6
5
3
2
8
1
4
Tab. 1: DN15 design
Pos. Article Quantity Order no.
1 Single-hinge clamp (not included in the scope of delivery) - -
2* O-ring DIN 11864-R-18x3.5-EPDM 2 1110594
3 Connector section HD DN15 4435 2 1109060
4* O-ring DIN 11864-R-28x3.5-EPDM 6 1110588
5 Valve housing HD DN15 4435 2 1109095
6* Ball DIN 5401 D=7/8 G 40 Al2O3 2 1110916
7* Valve seat HD DN15 4435 2 1109062
8* Multi-layer diaphragm S2_a d86.5x46-M8 PTFE/EPDM 1935 1 1106066
* Contents of the spare parts kit
Tab. 2: DN25 design
Pos. Article Quantity Order no.
1 Single-hinge clamp (not included in the scope of delivery) - -
2* O-ring DIN 11864-R-28x3.5-EPDM 2 1110588
3 Connector section HD DN25 4435 2 1109596
4* O-ring DIN 11864-R-40x5-EPDM 6 1110587
5 Valve housing HD DN25 4435 2 1109590
6* Ball DIN 5401 D=1.1/4 G 40 Al2O3 2 1110917
7* Valve seat HD DN25 4435 2 1109586
8* Multi-layer diaphragm S2_a d123.5x75-M8 PTFE/EPDM1935 1 1106067
* Contents of the spare parts kit
Product-specific part
9

1.2.4 Wetted materials
Dosing head Valve seat / valve housing / connector section Seals Ball Diaphragm
1.4435 1.4435 EPDM * Al2O3PTFE
* O-ring DIN 11864 R
1.2.5 Performance diagrams, Sigma 2 with hygienic pump head
p [bar]
S [%]
C [l/h]
C [l/h]
S2Ba Hygien.
A
B
0
50
100
150
200
250
300
350
400
450
0 2 4 6
04350
07220
07120
16130
16090
16050
12108
0
50
100
150
200
250
300
350
400
450
806040200 100 120
04350
07220
07120
16130
16090
16050
Fig. 6: A) Dosing rate C at maximum back pressure dependent on the
stroke length s. B) Dosing rate C dependent on the back pressure p.
Sigma 2 S2Ba with hygienic pump head
(50 Hz)
Product-specific part
10

p [bar]
S [%]
C [l/h]
C [l/h]
S2Cb Hygien.
A
B
0
50
100
150
200
250
300
350
400
450
0 2 4 6
04350
07220
07120
16130
16090
16050
12108
0
50
100
150
200
250
300
350
400
450
806040200 100 120
04350
07220
07120
16130
16090
16050
Fig. 7: A) Dosing rate C at maximum back pressure dependent on the
stroke length s. B) Dosing rate C dependent on the back pressure p.
Sigma 2 S2Cb with hygienic pump head
Product-specific part
11

1.3 Sigma 3
1.3.1 Performance data – Sigma 3
Type Minimum pump capacity at maximum
back pressure
Maximum
stroke rate
Priming lift Suction lift Connector
size
bar l/h ml/stroke Strokes/min mbar mbar DN
120145 10 149 34.4 72 180 500 25
120190 10 214 34.6 103 180 500 25
120270 10 298 34.4 144 180 500 25
120330 10 372 34.4 180 180 500 25
070410 7 374 86.7 72 190 400 32
070580 7 546 88.3 103 190 400 32
040830 4 800 92.6 144 190 400 32
041030 4 1000 92.6 180 190 400 32
Type Minimum pump capacity at maximum back pressure Maximum
stroke
rate
Priming
lift
Suction
lift
Con‐
nector
size
bar psi l/h gph ml/stroke Strokes/m
in
mbar mbar DN
120145 10 145 178 46.9 34.4 86 180 500 25
120190 10 145 257 67.8 34.6 124 180 500 25
120270 10 145 358 94.4 34.4 173 180 500 25
070410 7 102 447 117.9 86.7 86 190 400 32
070580 7 102 657 173.3 88.3 124 190 400 32
040830 4 58 961 253.5 92.6 173 190 400 32
Type Minimum pump capacity at maximum back
pressure
Priming lift Suction lift Connector size
bar l/h ml/stroke mbar mbar DN
120145 10 186 29.3 180 500 25
120190 10 249 28.8 180 500 25
120270 10 372 23.8 180 500 25
070410 7 468 77.5 190 400 32
070580 7 636 72.1 190 400 32
040830 4 1000 71.3 190 400 32
All figures are guideline figures for water at 20 °C.
The priming lift applies to a filled suction line and filled liquid end - with
correct installation.
S3Ba with hygienic pump head at 50 Hz
operation
S3Ba with hygienic pump head at 60 Hz
operation
S3Cb with hygienic pump head
Product-specific part
12

1.3.2 Dimensional drawings, Sigma 3
177.5
113 107
70 50
136
28
211
120
267
275
249
451
8
347
(339)
455
da1
P_SI_0210_SW
Fig. 8: Dimensional drawing of Sigma 3, S3Cb with hygienic pump head DN25 - dimensions in mm
da1 ≥ 150 mm = space to remove the dosing head
177.5
113 107
70 50
28120
267
275
249
451
455
51
457
406
211
136
da1
P_SI_0211_SW
Fig. 9: Dimensional drawing of Sigma 3, S3Cb with hygienic pump head DN32 - dimensions in mm
da1 ≥ 150 mm = space to remove the dosing head
Dimensional drawing of Sigma 3, S3Cb
with hygienic pump head
Product-specific part
13

1.3.3 Spare parts lists for Sigma 3
B1284_3
7
6
5
3
2
8
1
4
Tab. 3: DN25 design
Pos. Article Quantity Order no.
1 Single-hinge clamp (not included in the scope of delivery) - -
2* O-ring DIN 11864-R-28x3.5-EPDM 2 1110588
3 Connector section HD DN25 4435 2 1109596
4* O-ring DIN 11864-R-40x5-EPDM 6 1110587
5 Valve housing HD DN25 4435 2 1109590
6* Ball DIN 5401 D=1.1/4 G 40 Al2O3 2 1110917
7* Valve seat HD DN25 4435 2 1109586
8* Multi-layer diaphragm S3_a d123.5x75-M10 PTFE/EPDM1935 1 1106065
* Contents of the spare parts kit
Tab. 4: DN32 design
Pos. Article Quantity Order no.
1 Single-hinge clamp (not included in the scope of delivery) - -
2* O-ring DIN 11864-R-34x5-EPDM 2 1110586
3 Connector section HD DN32 4435 2 1109621
4* O-ring DIN 11864-R-52x5-EPDM 6 1109958
5 Valve housing HD DN32 4435 2 1109620
6* Ball DIN 5401 D=1.5/8 G 40 Al2O3 2 1110918
7* Valve seat HD DN32 4435 2 1109619
8* Multi-layer diaphragm S3_a d178x132 PTFE/EPDM 1 1034953
* Contents of the spare parts kit
Product-specific part
14

1.3.4 Wetted materials
Dosing head Valve seat / valve housing / connector section Seals Ball Diaphragm
1.4435 1.4435 EPDM * Al2O3PTFE
* O-ring DIN 11864 R
1.3.5 Performance diagrams, Sigma 3 with hygienic pump head
p [bar]
S [%]
C [l/h]
C [l/h]
S3Cb Hygien.
A
B
020 40 6010 30 50 8070 90 100
300
0
500
400
100
200
120270
120190
120145
01 6 10 12975
0
300
500
400
100
118432
200
120270
120190
120145
Fig. 10: A) Dosing rate C at maximum back pressure dependent on the
stroke length s. B) Dosing rate C dependent on the back pressure p.
Sigma 3 S3Ba with hygienic pump head
(50 Hz) - 1
Product-specific part
15

p [bar]
S [%]
C [l/h]
C [l/h]
S3Ba Hygien.
A
B
020 40 6010 30 50 8070 90 100
600
0
1000
800
200
400
040830
070580
040410
01 6 10 12975
0
800
1200
1000
400
118432
600
041030
040830
070580
040410
041030
Fig. 11: A) Dosing rate C at maximum back pressure dependent on the
stroke length s. B) Dosing rate C dependent on the back pressure p.
p [bar]
S [%]
C [l/h]
C [l/h]
S3Cb Hygien.
A
B
020 40 6010 30 50 8070 90 100
300
0
500
400
100
200
120270
120190
120145
01 6 10 12975
0
300
500
400
100
118432
200
120270
120190
120145
Fig. 12: A) Dosing rate C at maximum back pressure dependent on the
stroke length s. B) Dosing rate C dependent on the back pressure p.
Sigma 3 S3Ba with hygienic pump head
(50 Hz) - 2
Sigma 3 S3Cb with hygienic pump head
Product-specific part
16

2 General information
Should the information in these supplementary operating instructions and
the operating instructions for the pump contradict each other, the informa‐
tion in these supplementary operating instructions will take precedence!
2.1 Safety chapter
Intended use - Supplementary information to the “Sigma operating instruc‐
tions”:
nThe pump is intended for use for sealed, liquid food processes in
hygienic areas.
The materials and components intended to come into contact with
food products comply with the “Hygienic Design” of Regulation (EC)
No 1935/2004.
nThe pump is not intended for the aseptic pumping of liquids.
nTake into account the resistance of the wetted materials and the
ProMinent Resistance List when selecting the feed chemical - see the
ProMinent Product Catalogue or visit our website.
CAUTION!
Extreme temperatures
Liquid media, ambient temperatures, and heating or
cooling equipment can cause extreme temperatures at
the liquid end.
– If necessary, take appropriate measures to combat
this.
Make sure that the wetted surfaces are not scratched or damaged.
The metallic, wetted surfaces are electropolished with Ra max. 0.8 μm.
Do not scratch or damage the wetted side of the diaphragm.
The sound pressure level of the dosing heads when the pump is running is
< 80 dB (a) (ISO 11688-1 (11/2009)).
2.2 Storage and transport
CAUTION!
– The Sigma 2 and Sigma 3 are very top-heavy.
–Use lifting straps to move the large dosing head of
the Sigma 3 (070410, 070580, 040830, 041030).
Weight: 32 kg
Tab. 5: Pump weights
Product range Type Head Weight in kg
S1Ba / S1Cb 07065, 10044 and 10022 DN10 13.5 / 15.5
S2Ba / S2Cb 16050, 16090, 16130 DN15 20.1 / 22.1
07120, 07220, 04350 DN25 29.0 / 31.0
S3Ba / S3Cb 120145, 120190, 120270, 120330 DN25 35.6 / 37.6
070410, 070580, 040830, 041030 DN32 47.0 / 49.0
Intended use
Sound pressure level
General information
17

2.3 Installation, hydraulic
Maximum particle size of the feed chemical: 0.3 mm
Connection to the pipework system: It is the responsibility of the customer
to provide the corresponding parts in compliance with DIN 11864.
The correct 2 O-rings in compliance with DIN 11864 R are supplied sepa‐
rately.
Take into account the resistance of the wetted materials and the ProMi‐
nent Resistance List when selecting the feed chemical - see the ProMinent
Product Catalogue or visit our website.
The construction of the discharge and suction valve of the pump tapers
the overall cross-section. Therefore, if necessary, install a correctly fitting
bypass with shut-off valves around the liquid end to flush your system.
Provide the corresponding connectors and valves upstream and down‐
stream of the liquid end if the liquid end needs to be regularly purged (it
contains check valves). Pay attention to the quality of the compressed air ‐
to match your process!
2.4 Start up
Use a suitable medium to rinse the pump.
2.5 Maintenance
Tab. 6: Maintenance intervals
Maintenance interval Maintenance work
Regularly * Flush the interior of the liquid end - see
Ä Chapter 3 ‘Notes on cleaning metering
pumps with hygienic pump head’ on page 20 .
Regularly * Switch off the mains voltage and flush the pump with a surge of water from a hose
at atmospheric pressure.
Regularly * Check the surfaces and seals for scratches and deposits - refer to
Ä Chapter 3.3
‘Cleaning, manual’ on page 23 .
Regularly * Check the seals of the hygiene valve and replace them if in doubt - refer to the
appropriate chapter “Spare parts lists” and
Ä Chapter 3.3 ‘Cleaning, manual’
on page 23
.
The O-rings can age faster than usual when exposed to high thermal loading - in
extreme cases, particles can enter the feed chemical.
If damaged or worn Immediately replace the relevant parts of the hygiene valve - refer to the appropriate
chapter “Spare parts lists” and
Ä Chapter 3.3 ‘Cleaning, manual’ on page 23 .
If the pump is leaking at a valve Immediately replace the relevant parts of the hygiene valve - refer to the appropriate
chapter “Spare parts lists” and
Ä Chapter 3.3 ‘Cleaning, manual’ on page 23 .
Annually * Replace the O-rings, the valve balls and the multi-layer diaphragm - refer to the
appropriate chapter “Spare parts lists” and
Ä Chapter 3.3 ‘Cleaning, manual’
on page 23 .
Turn the valve seats over if the worn side can be mechanically machined so that it is
still suitable for hygienic operation. Otherwise replace.
Every 2 years * Replace the valve seats - refer to the relevant chapter “Spare parts lists” and
Ä Chapter 3.3 ‘Cleaning, manual’ on page 23 .
At the latest after 8,000 oper‐
ating hours
Replace all worn parts - refer to the relevant chapter “Spare parts lists” and
Ä Chapter 3.3 ‘Cleaning, manual’ on page 23 .
* adapted to your process conditions and process requirements
General information
18

2.6 Troubleshooting
Fault description Cause Remedy Personnel
The diaphragm rupture
sensor has triggered.
The operating dia‐
phragm has ruptured.
Immediately replace the diaphragm - refer to
Ä Chapter 3.3.2 ‘Replacing the diaphragm’
on page 25 .
Technical per‐
sonnel
The pump is leaking at a
valve.
An O-ring is damaged. Immediately replace the O-ring - refer to
Ä Chapter 3.3 ‘Cleaning, manual’
on page 23 .
Technical per‐
sonnel
2.7 Technical data
Tab. 7: Max. temperature for 15 minutes
Media Values
Flushing medium or feed chemical +140 °C
Flushing medium or feed chemical when operating in an
atmosphere at risk from explosion
+115 °C
Of course, the dosing head assumes the temperature of the liquid medium
after a short time. Consider putting in place appropriate protective meas‐
ures!
Sound pressure level of the dosing heads when the pump is running:
< 80 dB (A) (ISO 11688-1 (11/2009)).
2.8 Standards and regulations
EN 1672-2 (07.2009): Food processing machinery – General design princi‐
ples – Part 2: Hygiene requirements
EN 13951 (08.2012): Liquid pumps – Safety requirements – Agrifoodstuffs
equipment; Design rules to ensure hygiene in use
ISO 12100 (03.2011): Safety of machinery - General design principles -
Risk assessment and risk minimisation
Temperature of the flushing medium / feed
chemical
Sound pressure level
General information
19

3 Notes on cleaning metering pumps with hygienic pump head
3.1 Properties of wetted parts
The following wetted materials are used in ProMinent metering pumps with
hygienic pump head:
B1285_3
5
4
3
2
1
6
7
Fig. 13: Cross-section through the Sigma Hygiene liquid end
1 O-ring
2 Connector section
3 Valve housing
4 Ball
5 Valve seat
6 Dosing head
7 Diaphragm
Dosing head Valve seats / valve housing / connector section O-rings * Balls Diaphragm
1.4435 1.4435 EPDM Al2O3PTFE
The materials conform to Regulation (EC) no. 1935/2004.
* O-rings DIN 11864 R; the release of individual particles when exposed to
high thermal load is possible - then shorten the maintenance intervals.
Make sure that the wetted surfaces are not scratched or damaged.
The metallic, wetted surfaces are electropolished with Ra max. 0.8 μm.
Do not scratch or damage the wetted side of the diaphragm.
Do not exceed the chloride content of the batching water (see
Ä ‘Selected
cleaning agents and parameters’ on page 22
and Ä ‘Selected disinfec‐
tants and parameters’ on page 22 ), because the steel parts can then
become unhygienic due to corrosion.
3.2 Cleaning by flushing
ProMinent recommends including the metering pump with hygienic pump
head in an HACCP and/or in-house hygiene scheme.
Materials of wetted parts
Wetted surfaces
General
Notes on cleaning metering pumps with hygienic pump head
20