AS QC2 Series User manual

Operating instructions
Fill heads of the series
• QC2
• G-Series
English (Translation)

2
Legal notice
The operating instructions in German are the original operating instructions.
If you have questions about the products, please contact AS Strömungstechnik GmbH
(manufacturer) directly.
Revision status: 01/2022
Copyright, address of the manufacturer:
© Copyright by
AS Strömungstechnik GmbH
Elly-Beinhorn-Str. 7
73760 Ostldern
Germany
[e-mail]
www.asstroemungstechnik.de
All rights reserved.
Printed in Germany.

3
1 General information ....................................................................................................4
1.1 Introduction .........................................................................................................4
1.2 Conventions ........................................................................................................4
1.3 Symbols and labels.............................................................................................5
1.4 Copyright protection............................................................................................5
1.5 Guarantee and warranty .....................................................................................5
2 Safety ............................................................................................................................6
2.1 Intended use .......................................................................................................6
2.2 Improper use.......................................................................................................6
2.3 Responsibility of the user....................................................................................7
2.4 General safety instructions .................................................................................7
3 Setup / function ...........................................................................................................8
3.1 Auxiliary tools....................................................................................................11
4 Technical specications...........................................................................................12
4.1 Fill head DH-R.../GH-R... ..................................................................................12
4.2 Fill head DH-_B.../GH-_B.. ...............................................................................14
4.3 Fill head DH-A.../GH-A.. ...................................................................................16
4.4 Fill head DH-…-N2 / GH-…-N2 ........................................................................18
4.5 Fill head DH-_U… / GH-_U…...........................................................................20
4.6 Fill head DH-_J… / DH-J… / GH-_J… / GH-J…..............................................22
4.7 Ambient / operating temperature ......................................................................24
4.8 Torques for dip tube closures............................................................................24
5 Assembly / commissioning......................................................................................25
5.1 Initial commissioning.........................................................................................25
5.2 Tests prior to assembly .....................................................................................28
5.3 Mounting the ll head........................................................................................31
6 Operation....................................................................................................................35
6.1 Tests before each operation .............................................................................35
6.2 Tests during operation ......................................................................................35
7 Troubleshooting ........................................................................................................36
8 Disassembly...............................................................................................................37
8.1 Dismantling the ll head....................................................................................37
9 Maintenance / disposal .............................................................................................40
9.1 Cleaning the ll head ........................................................................................40
9.2 Fill head maintenance.......................................................................................40
9.3 Returning ll heads ...........................................................................................41
9.4 Fill head disposal ..............................................................................................41
Contents

4
1.1 Introduction
These operating instructions are only valid for the products mentioned in the title.
The gures shown are only exemplary illustrations. Depending on the equipment and
conguration, the actual appearance of the dispense head may vary.
These operating instructions convey important notes for the safe and e󰀩cient
handling of the products. They are part of the products. The prerequisite for safe
working with the products is the compliance with all specied safety instructions and
directives.
The operating instructions refer to standard versions. For special versions that are
not described in these operating instructions, the basic information in these operating
instructions applies in conjunction with additional special documentation.
The operating instructions are the basis for all training courses that take place with
the products.
NOTICE
• Read the operating instructions carefully before using the products to avoid
serious injury.
• Follow the safety instructions carefully to avoid serious injury.
• Store the operating instructions in a safe and accessible place during the
service life of the products.
• Pass the operating instructions to any subsequent owner or user of the
products.
1.2 Conventions
In order to be able to optimally work with the operating instructions, the following
clarications on typographical conventions must be observed.
List
• Texts displayed in this way are bullet points.
Handling instructions
1. Step 1 of the sequence of actions
2. Step 2 of the sequence of actions
3. Step 3 of the sequence of actions
The sequence of the work steps must be adhered to.
Tip
»Indicates general information and recommendations.
1 General information

5
1 General information
1.3 Symbols and labels
The following symbols are used in these operating instructions to depict hazards and
notes:
DANGER
Indicates a hazard which, if not
avoided, will result in death or
serious injury.
WARNING
Indicates a hazard which, if not
avoided, could result in death or serious
injury.
CAUTION
Indicates a hazard which, if not
avoided, could result in minor or
moderate injury.
NOTICE
Designates a situation that can result in
material damage.
1.4 Copyright protection
Despite all care taken, data and characteristics can change – even at short notice.
We therefore do not assume any liability or guarantee for the topicality, correctness
and completeness of the information.
Figures, graphics and texts as well as the design of these operating instructions
are subject to copyright protection and other protective laws. Duplication – also
in excerpts – requires the prior written consent of AS Strömungstechnik GmbH, if
duplication is not legally permitted.
1.5 Guarantee and warranty
AS Strömungstechnik GmbH assumes no liability for errors or damage that occurred
due to improper handling of the products.
Improper handling is in particular in the event of non-compliance with the operating
instructions, incorrect handling, negligence, unauthorized replacement of parts and
other interventions.
The customer is responsible for testing the chemical resistance of the dispense
heads and their service life.
Dispense heads and other products which have come into contact with media/
chemicals (except ultra pure water) cannot be taken back.
AS Strömungstechnik GmbH reserves the right to make design changes due to
further development of AS products.
Our customer service is always available even after the guarantee period has
expired.

6
2 Safety
WARNING
Please observe the following notes to prevent malfunctioning, damage and
injuries.
2.1 Intended use
The QC2 and G-Series ll heads are designed for the clean and safe lling/
recirculation of neutral or inorganic liquid chemicals into transport containers which
do not adversely a󰀨ect the physical and chemical properties of the materials and
substances of which the ll head used is composed.
NOTICE
The QC2 and G-Series conductive ll heads are designed for the clean and
safe lling/recirculation of neutral or organic liquid chemicals into transport
containers which do not adversely a󰀨ect the physical and chemical properties of
the materials and substances of which the ll head used is composed. They are
electrostatically safe in the sense of the Cenelec Technical Report TR 50404:
2003 and therefore applicable in zones 1 and 2 for liquids of the entire explosion
group IIA.
Fill heads may be used only in conjunction with AS dip tubes of the series
corresponding to the ll head. Observe the operating instructions of the dip tube.
The ll heads are designed for use with pump systems.
For dispensing and withdrawal applications, refer to the operating instructions for
dispense heads of the corresponding series.
2.2 Improper use
Any use other than the one described in the Section “intended use” is deemed to be
inappropriate use. The operator of the products shall be solely responsible for any
resulting damage.

7
2 Safety
2.3 Responsibility of the user
Operator means any natural or legal person who operates or controls the device or
makes it accessible to third parties for use and who is responsible for the safety of
the user or third parties.
• In particular, observe the general safety and occupational safety regulations
of the BG Chemie in Germany or the responsible regional professional
association for chemistry and health (e.g. OSHA in the United States), the
applicable technical rules for hazardous substances, the Hazardous Substances
Ordinance, the CLP Ordinance, the company own standard operating
procedures (SOPs), as well as the regulations of the ATEX Directive, the
technical guidelines “Flammable liquids” and the explosion protection guidelines
of the BG Chemie in Germany or the responsible regional association / authority
for applications in hazardous areas.
• If ammable liquids are “splash lled” into the container, the applicable national
and international regulations and guidelines must also be observed (e.g.
BetrSichV incl. TRBS 2153, 4/2009 (Germany), Cenelec Technical Report
TR 50404: 2003 (EU), IEC 60079-32 (international), JNIOSH-TR-No.42 2007
(Japan), NFPA Recommended Practice on Static Electricity (USA). It must also
be checked whether a correspondingly long dip tube can be used for the return /
lling into the container, which enables lling below the liquid level.
• These operating instructions do not replace the company’s own standard
operating procedures (SOPs).
• Wear appropriate protective clothing when handling chemical substances.
• Ensure that the ll heads are not used after the maximum period of use has
expired. The duration of use depends on the chemicals used.
• Before using the products, check the materials for their chemical resistance.
2.4 General safety instructions
• Always observe the safety data sheets (SDS) of the chemicals used.
• Only use cleaned products. The products described in these operating
instructions have been cleaned in an ultrasonic bath at the factory.
• Only use products for which the chemical resistance of the components is
guaranteed.

8
In the QC2 and G-Series, the following ll heads are available:
Abbr. Description
DH-R...
GH-R...
Fill head with/without check valve
• Standard,
• electrically conductive.
DH-_B...
GH-_B...
Fill head with limit switch
DH-A...
GH-A...
Fill head with manual shut-o󰀨 valve
• Plug valve (turncock)
• Ball valve
DH-J...
DH-_J...
GH-J...
GH-_J...
Fill head with mixing nozzle
DH-...-N2
GH-...-N2
Fill head with second vent port for N2-blanketing
DH-_U...
GH-_U...
Fill head with overlling sensor
»Fill head versions can be combined with each other.
For example, a QC2 Fill head can also have a check valve, a limit switch and a
overlling sensor (DH-RBU-...).
The electrically conductive version with limit switch, manual shut-o󰀨 valve or
second vent port is also available.
Depending on the design, the ll head may look slightly di󰀨erent.
3 Setup / function

9
3 Setup / function
No. Object
1Liquid line connection
2Tightening nut (incl. red markings)
3 Code disk
4Anti-rotation clip (red)
5 Main body
6 Vent port
standard: NPT3/8“ female thread
(from 11/2019), on the Figure with
screwed-in are adapter.
7 Locking pin (set screw)
8Top connection (vertical or horizon-
tal)
9Check valve (depending on model)
10 Vent channel
11 Liquid channel
12 Limit switch (optional)

10
The ll head is generally equipped with:
• Liquid line connection to inlet of uid pump line connection
• Vent line connection
• Code disk
• Tightening nut with red anti-rotation clip
• Standard connection to mating dip tube
Depending on the option, the uid ow rate in the liquid channel can be controlled by
a check valve, a plug valve (turncock) or a ball valve.
The check valve ensures that there is no ow back after transfer is complete and
there is no spill at disconnection. As soon as the pump is activated, the check valve
opens. When the pump is switched o󰀨, the pressure in the lling line is reduced and
the check valve closes.
The optional limit switch ensures that the ll head is correctly mounted. The lling
process can only be started after the release signal from the limit switch.
»The incorporation of the limit switch requires professional installation to integrate
the signals into the system control (PLC) to properly operate.
To ll ammable or highly ammable chemicals into a container, there is an
electrically conductive version of the ll head and the dip tube.
»The MOC of electrically conductive plastic ll heads and dip tubes is always
black in color due to the carbon additive.
WARNING
Danger due to static charge.
Statically charged chemicals or ll heads, dip tubes, etc. can cause sparks to arc
creating an ignition source.
• Ground the dip tube and ll head properly.
3 Setup / function

11
3 Setup / function
3.1 Auxiliary tools
The required auxiliary tools are listed below. For further details, please refer to the
corresponding data sheet and our website.
Docking station (for wall mounting)
Series Item no. Note
QC2 RDC- 89740 incl. bottle
QC2
conduc-
tive
RDC- 89740 - CD without shelf
for accesso-
ries
G-Series RDC-89750 incl. bottle
G-Series
conduc-
tive
RDC-89754 without shelf
for accesso-
ries
Universal bung wrench
Series Item no. Note
QC2 RDH-79005 PVDF
QC2
conduc-
tive
RDH-79003-CD electrically
conductive
G-Series RDH-79010 PVDF
G-Series
conduc-
tive
RDH-79009 electrically
conductive
Torque tool
The torque tool comes with torque wrench and attachment.
Series Item no.
QC2 DH-Z-2-0001-02
G-Series DH-Z-G-0001-02
24 mm
6 point socket

12
4 Technical specifications
4.1 Fill head DH-R.../GH-R...
Characteristic Value Figure
Dimensions See the corresponding
data sheet for the ll
head.
The ll heads shown here are only exemplary
representations. Depending on the equipment
and conguration, the actual ll head may vary in
appearance
Weight
Tightening
torque [Nm]
QC2: 2.6
G-Series: 2.6
Flow rates
[l/min]
QC2:
• max. 25 (with check
valve)
• max. 60 (without
check valve)
G-Series:
• max. 100 (with
check valve)
• max. 150 (without
check valve)
Opening
pressure
check valve
[bar]
QC2: 0.10
G-Series: 0.05
Period of use Depending on chemical
resistance
Standard: 3 years

13
4 Technical specifications
Materials (wetted components)
Characteristic Value
Housing variants Standard (natural): PE-HD, PVDF, PCTFE
Conductive: PP (black), PVDF (black), PFA (black), stainless steel
O-ring variants Standard: Peruor elastomer (Kalrez®)
As an alternative: FPM/FKM, EPDM
Materials (non-wetted components)
Characteristic Value
Anti-rotation clip PVC (red)
O-ring on code disk Standard: FKM
As an alternative: EPDM, Kalrez®
Other components Standard: PVDF,
As an alternative: PFA, on request
Connections
Characteristic Value
Connection variants
liquid
Flare: 3/8“, 1/2“, 3/4“, 1“, 1 1/4“
Hose connector: 1/2“, 3/4“, 1“
FNPT/MNPT: 1/2“, 3/4“, 1“
G-thread: 1/2“
Others on request (e.g. Tri-Clamp, Camlock, Pillar, Grundfos)
Connection gas QC2: NPT 3/8“ female thread (since November 2018)
G-Series: NPT 1/2“ female thread (since November 2018)
Optional adapters, e.g. Flare adaptors
»Further information on the ll heads can be found in the corresponding data
sheets. Possible other versions are available on request.

14
4.2 Fill head DH-_B.../GH-_B..
Characteristic Value Figure
Dimensions See the corresponding
data sheet for the ll
head.
The ll heads shown here are only exemplary
representations. Depending on the equipment
and conguration, the actual ll head may vary in
appearance
Weight
Tightening
torque [Nm]
QC2: 2,6
G-Series: 2,6
Flow rates
[l/min]
QC2:
• max. 25 (with check
valve)
• max. 60 (without
check valve)
G-Serie:
• max. 100 (with
check valve)
• max. 150 (without
check valve)
Opening
pressure
check valve
[bar]
QC2: -0,04
G-Series: -0,06
Period of use Depending on chemical
resistance
Standard: 3 years
»For electrical data, connection diagram and further information on integration,
refer to the separate data sheet of the sensor.
4 Technical specifications

15
Materials (wetted components)
Characteristic Value
Housing variants Standard (natural): PE-HD, PVDF, PCTFE
Conductive: PP (black), PVDF (black), PFA (black), stainless steel
O-ring variants Standard: Peruor elastomer (Kalrez®)
As an alternative: FPM/FKM, EPDM
Release pin (limit
switch)
Standard: Magnet encapsulated in PVDF
As an alternative: Magnet encapsulated in PCTFE
Materials (non-wetted components)
Characteristic Value
Anti-rotation clip PVC (red)
O-ring on code disk Standard: FKM
As an alternative: EPDM, Kalrez®
Other components Standard: PVDF,
As an alternative: PFA, on request
Sensor See data sheet of the sensor
Connections
Characteristic Value
Connection variants
liquid
Flare: 3/8“, 1/2“, 3/4“, 1“, 1 1/4“
Hose connector: 1/2“, 3/4“, 1“
FNPT/MNPT: 1/2“, 3/4“, 1“
G-thread: 1/2“
Others on request (e.g. Tri-Clamp, Camlock, Pillar, Grundfos)
Connection gas QC2: NPT 3/8“ female thread (since November 2018)
G-Series: NPT 1/2“ female thread (since November 2018)
Optional adapters, e.g. Flare adaptors
»Further information on the ll heads can be found in the corresponding data
sheets. Possible other versions are available on request.
4 Technical specifications

16
4.3 Fill head DH-A.../GH-A..
Characteristic Value Figure
Dimensions See the corresponding
data sheet for the ll
head.
(1): Plug valve (turncock)
(2): Ball valve
The ll heads shown here are only exemplary
representations. Depending on the equipment
and conguration, the actual ll head may vary in
appearance
Weight
Tightening
torque [Nm]
QC2: 2,6
G-Series: 2,6
Flow rates
[l/min]
QC2:
• max. 60
G-Series:
• max. 150
Period of use Depending on chemical
resistance
Standard: 3 years
»Further information on the ll heads can be found in the corresponding data
sheets. Possible other versions are available on request.
4 Technical specifications

17
Materials (wetted components)
Characteristic Value
Housing variants Standard (natural): PE-HD, PVDF, PCTFE
Conductive: PP (black), PVDF (black), PFA (black), stainless steel
O-ring variants Standard: Peruor elastomer (Kalrez®)
As an alternative: FPM/FKM, EPDM
Ball valve For PE-HD housings
• Standard: PP-H with FPM o-rings
• As an alternative: PP-H with EPDM o-rings, PP-H with Kalrez
o-rings
For PVDF housings
• Standard: PVDF with FPM o-rings
• As an alternative: PVDF with EPDM o-rings, PVDF with Kalrez
o-rings
Materials (non-wetted components)
Characteristic Value
Anti-rotation clip PVC (red)
O-ring on code disk Standard: FKM
As an alternative: EPDM, Kalrez®
Other components Standard: PVDF,
As an alternative: PFA, on request
Connections
Characteristic Value
Connection variants
liquid
Flare: 3/8“, 1/2“, 3/4“, 1“, 1 1/4“
Hose connector: 1/2“, 3/4“, 1“
FNPT/MNPT: 1/2“, 3/4“, 1“
G-thread: 1/2“
Others on request (e.g. Tri-Clamp, Camlock, Pillar, Grundfos)
Connection gas QC2: NPT 3/8“ female thread (since November 2018)
G-Series: NPT 1/2“ female thread (since November 2018)
Optional adapters, e.g. Flare adaptors
4 Technical specifications

18
4.4 Fill head DH-…-N2 / GH-…-N2
Characteristic Value Figure
Dimensions See the corresponding
data sheet for the ll
head.
N2-Connection
N2-Connection
Vent port
Vent port
The ll heads shown here are only exemplary
representations. Depending on the equipment
and conguration, the actual ll head may vary in
appearance
Weight
Tightening
torque [Nm]
QC2: 2,6
G-Series: 2,6
Flow rates
[l/min]
QC2:
• max. 25 (with check
valve)
• max. 60 (without
check valve)
G-Serie:
• max. 100 (with
check valve)
• max. 150 (without
check valve)
Opening
pressure
check valve
[bar]
QC2: 0,10
G-Series: 0,05
Period of use Depending on chemical
resistance
Standard: 3 years
4 Technical specifications

19
Materials (wetted components)
Characteristic Value
Housing variants Standard (natural): PE-HD, PVDF, PCTFE
Conductive: PP (black), PVDF (black), PFA (black)
O-ring variants Standard: Peruor elastomer (Kalrez®)
As an alternative: FPM/FKM, EPDM
N2-tube Standard: PE-LD
As an alternative: PFA
Materials (non-wetted components)
Characteristic Value
Anti-rotation clip PVC (red)
O-ring on code
disk
Standard: FKM
As an alternative: EPDM, Kalrez®
Other components Standard: PVDF,
As an alternative: PFA, on request
Connections
Characteristic Value
Connection variants
liquid
Flare: 3/8“, 1/2“, 3/4“, 1“, 1 1/4“
Hose connector: 1/2“, 3/4“, 1“
FNPT/MNPT: 1/2“, 3/4“, 1“
G-thread: 1/2“
Others on request (e.g. Tri-Clamp, Camlock, Pillar, Grundfos)
Connection gas QC2: NPT 3/8“ female thread (since November 2018)
G-Series: NPT 1/2“ female thread (since November 2018)
Optional adapters, e.g. Flare adaptors
N2-connection QC2: Flare ¼“, further upon on request
G-Series: Flare 3/8“, further upon on request
»Further information on the ll heads can be found in the corresponding data
sheets. Possible other versions are available on request.
4 Technical specifications

20
4.5 Fill head DH-_U… / GH-_U…
Characteristic Value Figure
Dimensions See the corresponding
data sheet for the ll
head. Vent port to connect vent line
Sensor
Sensor
Vent port to connect
vent line
The ll heads shown here are only exemplary
representations. Depending on the equipment
and conguration, the actual ll head may vary in
appearance
Weight
Tightening
torque [Nm]
QC2: 2,6
G-Series: 2,6
Flow rates
[l/min]
QC2:
• max. 25 (with check
valve)
• max. 60 (without
check valve)
G-Serie:
• max. 100 (with
check valve)
• max. 150 (without
check valve)
Opening
pressure
check valve
[bar]
QC2: 0,10
G-Series: 0,05
Period of use Depending on chemical
resistance
Standard: 3 years
»For electrical data, connection diagram and further information on integration,
refer to the separate data sheet of the sensor.
4 Technical specifications