EM-Technik 4L Parts list manual
EM-Technik GmbH - Industriestraße 2 - 67133 Maxdorf - Germany
1
Flow Meter 4L
Assembly and Operation Instructions
EN
EM-Technik GmbH - Industriestraße 2 - 67133 Maxdorf - Germany
2
1 General information ..............................................................................................................................3
1.1 Introduction ......................................................................................................................................3
1.2 Warnings..........................................................................................................................................3
1.3 Special Hazards...............................................................................................................................3
1.4 General Safety Instructions .............................................................................................................3
1.5 Designated Use ...............................................................................................................................3
1.6 Reasonably Foreseeable Misuse ....................................................................................................3
2 Manufacturer’s Specification..............................................................................................................4
2.1 Description.......................................................................................................................................4
2.2 Transport and Storage .....................................................................................................................4
3 Technical Data......................................................................................................................................4
3.1 Dimensions ......................................................................................................................................4
3.2 Operating Medium ...........................................................................................................................4
3.3 Pressure Guide................................................................................................................................4
3.4 Measuring Ranges .........................................................................................................................5
4 Assembly and Operation ....................................................................................................................5
4.1 Assembly Instructions ......................................................................................................................5
4.2 Tools Required .................................................................................................................................5
4.3 Connecting the Flow Meter..............................................................................................................5
5 Commissioning....................................................................................................................................5
5.1 Precondition for Commissioning ......................................................................................................5
5.2 Operation .........................................................................................................................................5
5.3 Reading the Measured Value...........................................................................................................6
6 Maintenance .........................................................................................................................................6
7 Disposal................................................................................................................................................6
8 Return Delivery ....................................................................................................................................6
9 Troubleshooting / Fault Rectification.................................................................................................6
10 Manufacturer‘s Declaration ................................................................................................................6
11 Contact .................................................................................................................................................6
Contents
EM-Technik GmbH - Industriestraße 2 - 67133 Maxdorf - Germany
3
1. General information
1.1 Introduction
• These instructions apply to series 4L flow meters, also
referred to below as fittings.
• Read the instructions completely before using our pro-
ducts to prevent injuries, material damage and mal-
functions!
• Save the instructions for later reference.
• All rights including copyright and industrial property
rights are explicitly reserved.
1.2 Warnings
• Warnings are always identified by a signal word. The
following signal words or hazard levels are used:
Danger: Failure to follow instructions will
lead to serious injuries or death. High risk le-
vel of endangerment.
Warning: Failure to follow instructions may
lead to serious injuries or death. Moderate
risk level of endangerment.
Caution: May lead to slight or moderate inju-
ries. Low risk level of endangerment.
Note: Refers to an instruction that must ab-
solutely be followed.
Information: Gives useful tips and recom-
mendations..
1.3 Special Hazards
• It must be ensured that the fitting is resistant for the
media and temperatures that will be used. The resis-
tance of the fitting with aggressive media depends in
individual cases on many variables (such as the tem-
perature, concentration ratio of the medium, material,
environment, tube material etc.). The person ordering
the fitting is responsible for checking for the specific
application. In case of doubt install the fitting on a trial
basis.
• Always comply with the safety data sheets or the safety
requirements for the media you are using!
• Before removing the fitting it must be ensured that the-
re is no more medium in the flexible tube/pipe system
and the pressure has completely dissipated. Exercise
caution for toxic, corrosive or hot media residue flowing
out of the line or remaining in dead spaces.
1.4 General Safety Instructions
• The fitting must be properly connected to the flexible
tube/pipe system.
• Before installing the fitting make certain that external
mechanical effects such as thrust and bending forces
are not acting on the flexible tube/pipe system.
• Installation, commissioning, operation, installation,
maintenance, troubleshooting and disassembly must
only be performed by qualified specialists with due con-
sideration of accident prevention regulations. Person-
nel must be capable based on their technical training
and experience of performing assembly tasks, follo-
wing technical specifications and recognizing possible
dangers.
• Personnel with deficient knowledge must be trained
and instructed.
• Areas of responsibility and responsibilities must be pre-
cisely regulated and personnel must be monitored.
These safety instructions do not take into consideration
any:
• Coincidences and events that could occur at the cus-
tomer location during assembly, operation and mainte-
nance.
• Local safety requirements, for which the operating
company is responsible to ensure compliance, inclu-
ding assembly personnel who are used.
1.5 Designated Use
• The fitting must only be operated within the permitted
usage ranges for pressure and temperature.
• Only the operating media named in the documentation
are permitted to flow through the fitting.
• The fitting must only be operated if it is in flawless tech-
nical condition.
• The fitting must not be operated if it is in partially as-
sembled condition.
• If other operating modes are not named in the docu-
mentation, they must be approved with the manufac-
turer.
1.6 Reasonably Foreseeable Misuse
• Any usage other than designated use.
• Do not make any modifications to the product by your-
self!
• Components should only be retrofitted after consulta-
tion with the manufacturer.
EM-Technik GmbH - Industriestraße 2 - 67133 Maxdorf - Germany
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2 Manufacturer’s Specification
2.1 Description
The flow meters 4L are used for the safe measurement
and regulation of media flows. They are suitable for ins-
tallation in switch panels and for wall mounting.
2.2 Transport and Storage
• The fitting must be protected against mechanical da-
mage, moisture, dirt and dust. The storage temperatu-
re range is 10 – 40°C.
• Avoid UV radiation and direct sunlight.
• Leave the fitting in its original packaging to ensure the
best possible protection.
• Dispose of the packaging material according to dispo-
sal requirements/environmental protection regulations.
3 Technical Data
3.1 Dimensions
G L L1 L2 L3
4L100... 1/8“ 100 80 70 30
4L200... 1/4“ 110 85 85 35
4L500... 1/2“ 212 170 133.5 58.5
GL4B1B2d1
4L100... 1/8“ 40 35 27 Ø 4.5
4L200... 1/4“ 40 35 28 Ø 4.5
4L500... 1/8“ 95 42 33 Ø 5.5
All information in mm
Missing dimensions can be found on our homepage un-
der the following link: www.em-technik.com
3.2 Operating Medium
• Neutral, gaseous and liquid media that do not negati-
vely affect the physical and chemical properties of the
relevant housing and sealing material.
• If you have questions about resistance please contact
emtechnik.
• For the maximum permitted operating pressure/tempe-
rature see the pressure guide.
3.3 Pressure Guide
As the temperature rises, the effectiveness of the fitting
falls, as shown by this table.
Material PP PVDF PFA
Pressure Stage PN 3 PN 3 PN 3
-40°C 75% 75%
-20°C 100% 100%
5°C 100% 100% 100%
20°C 100% 100% 100%
30°C 80% 80% 90%
40°C 70% 70% 85%
50°C 60% 60% 80%
60°C 50% 50% 70%
70°C 40% 45% 60%
80°C 30% 40% 50%
90°C 20% 35% 45%
100°C 35% 40%
110°C 30% 35%
120°C 25% 30%
130°C 25% 30%
140°C 10% 25%
150°C 20%
160°C 15%
170°C 10%
180°C 10%
EM-Technik GmbH - Industriestraße 2 - 67133 Maxdorf - Germany
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3.4 Measuring Ranges
Article Number Thread Measuring Range
4L100G140318 G 1/8“
4 – 40 l/h air
4L100N140318 NPT 1/8“
4L100G150318 G 1/8“
10 – 100 l/h air
4L100N150318 NPT 1/8“
4L200G280414 G 1/4“
40 – 400 l/h air
4L200N280414 NPT 1/4“
4L200G270414 G 1/4“
150 – 1600 l/h air
4L200N270414 NPT 1/4“
4L200G170414 G 1/4“
2,5 – 25 l/h water
4L200N170414 NPT 1/4“
4L200G180414 G 1/4“
4 – 40 l/h water
4L200N180414 NPT 1/4“
4L200G230414 G 1/4“
10 – 100 l/h water
4L200N230414 NPT 1/4“
4L500G240612 G 1/2“
250 – 2500 l/h air
4L500N240612 NPT 1/2“
4L500G250612 G 1/2“
600 – 6000 l/h air
4L500N250612 NPT 1/2“
4L500G260612 G 1/2“
25 – 250 l/h water
4L500N260612 NPT 1/2“
4L500G270612 G 1/2“
60 – 600 l/h water
4L500N270612 NPT 1/2“
Measuring range air at p = 0,1 bar, 20°C
Measuring range water at p = 1 bar, 20°C
4 Assembly and Operation
4.1 Assembly Instructions
• Make certain the fitting is suitable for the relevant
application. The fitting must be suitable for the opera-
ting conditions of the pipeline system (medium, con-
centration, temperature and pressure) as well as the
relevant ambient conditions.
• Check the fitting for transport damage before installing
it. If the fitting is damaged do not install it.
• The planner, the construction company or operating
company are responsible for the positioning and instal-
lation of the fitting. Planning and installation errors can
adversely affect the reliable functionality of the fitting
and may represent a significant potential for hazard.
• After the fitting is installed perform a tightness and
function check.
4.2 Tools Required
The tools required for installation and assembly are not
included with delivery.
4.3 Connect Flow Meter
• The flow meter must be connected to the pipeline so it
is free of mechanical stress.
• The flow meter has a female thread (ISO, DIN,
ANSI) and can be connected with various connecting
elements of the emtechnik system.
• Observe the flow direction from the bottom to the top.
Cylindrical thread Conical thread
Sealing is provided by a sealing collar for
Cylindrical threads (G, M or UNF).
A version with an O-ring is also possible.
Sealing is provided
by the thread itself
for Conical threads
(NPT).
Sealing Collar O-Ring Thread
• Each thread must always be connected with the same
thread type.
• If a plastic fitting is used in combination with a metal-
lic male fitting, additional sealing with Teflon® tape is
recommended.
5 Commissioning
5.1 Precondition for Commissioning
• Protect against leaks: Take protective measures
against exceeding the maximum permitted pressure
due to possible pressure surges.
• Check the tightness and function of the fitting.
• In new systems and after repairs, flush the line system
to remove foreign materials.
5.2 Operation
The series 4L flow meter has an integrated fine regula-
ting valve. Turn the handwheel clockwise to reduce the
flow. Turn the handwheel counter-clockwise to increase
the flow.
EM-Technik GmbH - Industriestraße 2 - 67133 Maxdorf - Germany
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5.3 Reading the Measured Value
• The position of the float in the metering tube corre-
sponds to the volumetric flow of the medium.
• Parallax-free reading: Look over the top edge of the
float and read the measured value on the scale.
6 Maintenance
• When used as designated, the fitting is practically
wear-free and generally requires no maintenance.
• The operating company must perform regular visual
inspections of the fitting according to the operating
conditions to prevent leaks and damage.
7 Disposal
• When disposing of the fitting and packaging, comply
with the relevant disposal requirements and environ-
mental protection regulations.
• When disposing of fittings, pay careful attention to any
residues of toxic or corrosive media.
8 Return Delivery
Do not return before consulting with emtechnik.
1. Please consult with emtechnik.
2. Empty the fitting properly.
3. Rinse and clean the fitting thoroughly, especially if the
media is being conveyed are harmful, explosive, hot,
or hazardous in some other way.
4. For fittings that have been operated with aggressive,
corrosive, combustible, toxic or water polluting media,
a completely filled in clearance certificate must always
be included.
9 Troubleshooting /
Fault Rectification
Error Possible Cause Error Rectification
The fitting does not
open/close or not
completely
Foreign object in the
fitting
Flush the fitting
Connection between
fitting and pipeline is
leaking
Sealing surface
damaged
Use sealant,
see 4.3
Fitting is leaking Fitting faulty Check fitting for
damage and replace
it if necessary
10 Manufacturer‘s Declaration
• Our products do not fall under the scope of the Ma-
chinery Directive 2006/42/EC. However, they can be
incorporated in an installation that is considered as
machinery. In this case regard the following note: The
products may not be put into operation until it is made
sure that the final machinery into which our products
are incorporated complies with the provisions of the
Machinery Directive 2006/42/EC.
• Based on the fluid class, pressure and nominal diame-
ter, our products fall under diagram 8 of the Pressure
Equipment Directive PED 2014/68/EU. Because of the
ratio of nominal diameter, pressure and volume, they
fall only under article 4 paragraph 3 and are designed
and manufactured according to applicable good engi-
neering practice. They must not carry any CE marking.
• The warranty of armature expires in the following ca-
ses: Operating conditions which do not follow the in-
tended use or do not follow technical specifications.
Improper installation or assembly. Just as well as inap-
propriate use, dismantling or modification.
• Failure to observe information provided here may lead
to injuries, material damage, malfunctions and impuri-
ties due to escaping medium.
11 Contact
In case of questions or suggestions please contact us:
EM-Technik GmbH
Industriestr. 2 Tel +49 6237 407-0
67133 Maxdorf Fax +49 6237 407-77
Germany [email protected]
Version 08/2021
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