- ddw_ds31_eb_en_a4 858 KB

- ddw_ds31_eb_en_a4 858 KB
Flow monitor
DDW-DS31
Installation and Operating Instructions
Flow monitor
DDW-DS31-Rp
DDW-DS31-Ga
DDW-DS31-Gi
DDW-DS31-DN
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
2
DDW-DS31
Contents
1.
Foreword............................................................................................................................................................... 3
2.
Safety...................................................................................................................................................................... 3
2.1. Symbol and meaning............................................................................................................................. 3
2.2. General safety directions and exemption from liability......................................................... 3
2.3. Intended use ............................................................................................................................................. 3
2.4. Operator and operating personnel ................................................................................................ 3
2.5. Regulations and guidelines ................................................................................................................ 3
2.6. Notice as required by the hazardous materials directive................................................... 4
2.7. Transport and storage ........................................................................................................................ 4
3.
Installation ............................................................................................................................................................ 4
3.1. Preparatory work prior to installation .......................................................................................... 4
3.2. Installing DDW-DS31 with screw connections ........................................................................ 5
3.3. DDW-DS31 mounted between flanges ....................................................................................... 6
3.4. DDW-DS31 with internal thread .................................................................................................... 7
3.5. Electrical connection............................................................................................................................. 8
4.
Start-up.................................................................................................................................................................. 9
4.1. Setting the operating point ................................................................................................................ 9
5.
Maintenance and cleaning of DDW-DS31 ........................................................................................... 9
6.
Service ................................................................................................................................................................... 9
6.1. Disposal....................................................................................................................................................... 9
7.
Technical data ................................................................................................................................................. 10
7.1. Measuring ranges............................................................................................................................... 10
7.2. Dimensions............................................................................................................................................. 11
7.3. General technical data...................................................................................................................... 14
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
3
DDW-DS31
1. Foreword
These Installation and Operating Instructions are applicable to devices of Series DDW-DS31.
Please follow all instructions and information given for installation, operation, inspection and
maintenance. The Instructions form a component part of the device, and should be kept in an
appropriate place accessible to the personnel in the vicinity of the location. Where various plant
components are operated together, the operating instructions pertaining to the other devices
should also be observed.
2. Safety
2.1. Symbol and meaning
Safety notice
This symbol is placed against all directions/information relating to occupational health and
safety in these Installation and Operating Instructions, and draws attention to danger to life and
limb. Such notices should be strictly observed.
2.2. General safety directions and exemption from liability
This document contains basic instructions for the installation, operation, inspection and
maintenance of the flow monitor. Failure to comply with these instructions can lead to
hazardous situations for Man and Beast and also to damage to property, for which
Kirchner und Tochter disclaims all liability.
The Operator is required to rule out potentially hazardous situations through voltage and
released media energy.
2.3. Intended use
The DDW-DS31 flow monitor is used for monitoring the flow of water, oils, and neutral fluids. The
device operates on the differential-pressure principle. A drop in the differential pressure occurs
at a pipe constriction that is proportional to the square of the volume rate of flow through the
pipeline. This differential pressure is used to actuate the micro switch. The user sets the switch
locally by a hand wheel in the range of the flow span.
2.4. Operator and operating personnel
Authorized installation, operating, inspection and maintenance personnel should be suitably
qualified for the jobs assigned to them, and should receive appropriate training and instruction.
2.5. Regulations and guidelines
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
4
DDW-DS31
In addition to the directions given in these Installation and Operating Instructions, observe the
regulations, guidelines and standards, such as DIN EN, and, for specific applications, the codes of
practice issued by DVGW (gas and water) and VdS (underwriters), or the equivalent national
codes, and applicable national accident prevention regulations.
2.6. Notice as required by the hazardous materials directive
In accordance with the law concerning handling of waste (critical waste) and the hazardous
materials directive (general duty to protect), we would point out that all flow monitors returned to
Kirchner und Tochter for repair are required to be free from any and all hazardous substances
(alkaline solutions, acids, solvents, etc.).
Make sure that devices are thoroughly rinsed out to neutralize hazardous substances.
2.7. Transport and storage
Always use the original packing for transport, handling and storage. Protect the device against
rough handling, impact, jolts, etc.
3. Installation
3.1. Preparatory work prior to installation
Provide the pipe ends at the installation point with the external pipe thread or flanges
respectively (Type series DN) appropriate to the device. Make sure the installation space at the
installation point is in keeping with the dimensions given in the dimensional drawing and the table
in the Technical Data chapter.
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
5
DDW-DS31
3.2. Installing DDW-DS31 with screw connections
The measuring device is screwed into the pipeline between two inserts that are supplied
with the device. The straight, unimpeded inlet and outlet runs should be a minimum of 6 x
DN upstream and a minimum of 4 x DN downstream of the location. Between the inserts,
leave a gap of L1 + 4mm for the gaskets. The dimensions for L1 are given on page Fehler!
Textmarke nicht definiert.2.



Cut appropriate threads on the pipe ends (in accordance with the order). Make
sure that the ends of the pipe are in alignment.
Unscrew the union nuts from the DDM-DS11 and slide these on to the pipe ends,
with the thread facing towards the device.
Screw the insert to the pipe ends using suitable packing material.
Incorrect measurements are possible when device is installed in incorrect mounting position.
When installing be aware of the flow direction (see arrow on device (3) or + / - on the flow
monitor).

Slide the DDM together with the two gaskets (2) between the pipe ends and tighten down
the union nuts.
4
--
+
1
2
1
3
4
1.
2.
3.
4.
Insert
Gaskets
DDM
Union nut
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
6
DDW-DS31
3.3. DDW-DS31 mounted between flanges
The flow meter is mounted between flanges to DIN EN 1092-1 (Type 11 or Type 13). The
straight, unimpeded pipe run should be a minimum of 6 x DN upstream and a minimum of
4 x DN downstream of the location. The distance between the flanges should be 55 mm
for the ring plus twice the thickness of the gaskets to be used. Make sure that the flanges
are in aligment and the sealing faces are parallel to each other. Check that the flanges at
the location agree with the details given in the order (standard and pressure rating).

The distance between the
flanges should be 55mm + 2 x
t (thickness of gaskets used).

Fit half of the screw
connections to the interflange
connection,

Mount the orifice, together
with the gaskets fitted on
both sides, between the two
prepared flanges.

Assemble the remaining
screw connections.

When tightening the screws,
make sure that orifice and
gaskets are concentric and in
alignment with the pipeline.

Fasten all screw connections
uniformly in diagonally
opposed sequence.
+
--
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
7
DDW-DS31
3.4. DDW-DS31 with internal thread
As a screw-in pipe fitting, the device is screwed into the pipeline. The straight, unimpeded
length of pipe run needs to be a minimum of 6 x DN (= nominal diameter) upstream of the
installation location and a minimum of 4 x DN downstream of the location. Provide a gap of
L1 between the pipe ends. The dimension for L1 is given on page 13.

Provide the pipe ends with suitable threads (in accordance with the order).
Make sure that the pipe ends are in alignment.

Screw the flow indicator to the pipe ends using suitable packing material.

Be aware of the flow direction (see arrow on device).
+
--
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
8
DDW-DS31
3.5. Electrical connection

Only by authorized and qualified personnel.

Electrical connection of the device to be carried out in
accordance with the relevant regulations of the VDE and the
regulations of the local power supply utility.

Before connecting up the device, disconnect the system from
power supply.

Polarity need not be observed (see diagram).

Provide protective circuit for the contacts in accordance
with the contact rating.

Demand-adapted fuse elements to be connected on the line side.
circuit diagram
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
9
DDW-DS31
4. Start-up
Before start-up make sure that all electrical supply and switching lines and the measuring orifice
have been properly installed. In the case of liquid media, pressure connection lines need to be
vented.

Test all device connections.

To set the flow: pressurize the pipelines by slowing opening the shut-off valves. On liquid
service: carefully evacuate the pipeline.

Check that all components are leak-tight and, if necessary, tighten down threaded joints and
screw connections.

Where the process medium is water, make sure the device is frost-protected.
4.1. Setting the operating point
The required operating point is set by turning the adjusting button . The operating point mark on
the rating plate indicates the value set on the scale on the adjusting button.
5. Maintenance and cleaning of DDW-DS31
The flow monitor is maintenance-free. To ensure reliable operation and a long service life, we
recommend that the device be inspected at regular intervals:

check of the indicator,

check of the switching function in connection with follow-on components,

check of the pressure connection lines between orifice plate and differential pressure switch
for leak tightness,

check of the electrical connection (clamp connection of cables).
Adapt testing and inspection cycles to environmental operating conditions.
6. Service
All devices with defects or deficiencies should be sent direct to our repair department.
To enable our customer service facility to deal with complaints and repairs as quickly as
possible, you are kindly requested to coordinate the return of devices with our sales department,
Tel. +49 2065 96 09-0.
6.1. Disposal
Please help to protect our environment, and dispose of workpieces in conformity with current
regulations or use them for some other practical purpose.
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
10
DDW-DS31
7. Technical data
Materials
Wetted parts
Diaphragm
Gaskets
Brass, Al hc, 1.5471, S355J2G3
screw unions:
malleable cast iron, galvanized
Viton, optionally NBR
NBR, optionally Viton
7.1. Measuring ranges
Measuring ranges for Rp, Gi, Ga
Rp
1
4
Volume flow rate (full-scale range)
[m3/h] H2O
minimum
maximum
0,2
1,2
3
8
0,4
2,3
1
2
0,7
4,5
3
4
1,3
8,5
1
1¼
1½
2
2
3,5
5
7,5
13,5
24
32
52
Connection for in-between flange assembly
DN
50
65
80
100
125
150
200
Volume flow rate (full-scale range)
[m3/h] H2O
Minimum
maximum
7
52
12
78
18
118
28
184
44
288
64
413
113
735
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
11
DDW-DS31
7.2. Dimensions
Dimensions DDW-DS31-DN
DN
50
65
80
100
125
150
200
d4 [mm]
102
122
138
158
188
212
268
L [mm]
55
55
55
55
55
55
55
H [mm]
187
197
205
215
230
242
270
ca. 125
M16x1,5
ca. 137
H
+
d4
--
DN
L
DDW-DS31-DN
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
12
DDW-DS31
Dimensions DDW-DS31-Rp
Rp
L1 [mm]
1
4
80
124
SW [mm] (1)
41
3
8
80
128
46
78
1
2
80
128
46
78
3
80
128
50
80
1
80
136
1¼
80
146
1½
80
149
2
90
164
(1) width over flats of hexagonal body
60
70
70
85
85
90
90
98
4
L2 [mm]
H [mm]
76
ca. 125
+
ca. 53
--
H
M16x1,5
Rp
Ga
L1
L2
DDW-DS31-Rp/DDW-DS31-Ga
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
13
DDW-DS31
Dimensions DDW-DS31-Gi/DDW-DS31-Ga (1)
Gi
Ga
L1 [mm]
SW [mm] (2)
1
3
80
41
4
4
3
3
8
H [mm] Gi only
76
80
46
78
8
80
46
78
4
1
2
1
1
3
1
1
4
80
50
80
1
2
80
60
85
80
70
90
4
80
70
90
4
90
85
98
4
1
1
1
4
1
2
1
2
1
2
2
1
2
3
(1) Drawing DDW-DS31-Ga: See page 9
(2) width over flats of hexagonal body
ca. 125
+
ca. 53
--
H
M16x1,5
Gi
SW
L1
DDW-DS31-Gi
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
14
DDW-DS31
7.3. General technical data
Readable setting range
Monitoring span
Process temperature
Max. stat. operating pressure
Differential pressure
Residual pressure loss
Repeatability
Hysteresis
Switching range
Switching function
Type of protection
Max. supply voltage
Max. switching current
Max. contact rating
Electrical connection
Connection
Pipe union (Rp)
External thread (Ga)
Internal thread (Gi)
33 % - 100 %
1:3
0 °C… 80 °C (100 °C *)
16 bar
400 mbar or 600 mbar
approx. 160 mbar or approx. 240 mbar
5% FS
5% at Q-max.
10% at Q-min.
infinitely adjustable in the range of
33-100% of flow rate
N/O contact, optionally N/C contact**
IP54
250 V AC
30 V DC
5A
0,4 A
250 VA
10 W
permanently installed cable, 2,5 m, optionally angle plug
or LED angel plug
nut with parallel external fastening screw thread to
DIN ISO 228 Part 1, insert with fitting thread to
DIN 2999, ISO 7-1
parallel external fastening screw thread to
DIN ISO 228 Part 1.
parallel internal fastening screw thread to
DIN ISO 228.
* HT- design
** meet the requirements of protection according to the low voltage directive
73/23/EEC and its modification 93/68/EEC
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Flow monitor
DDW-DS31
The equipment from Kirchner und Tochter has been
tested in compliance with applicable CE-regulations
of the European Community.
The respective declaration of conformity is
available on request.
Technical data supplied without liability. The current
valid version of our documents can be found under
this URL: www.kt-web.de
The Kirchner und Tochter QM-System is certified
in accordance with DIN-EN-ISO 9001:2008.
The quality is systematically adapted to the continuously
increasing demands.
A. Kirchner & Tochter GmbH Dieselstraße 17 · D-47228 Duisburg
Fon: +49 2065 9609-0 · Fax: +49 2065 9609-22 Internet: www.kt-web.de · e-mail: info@kt-web.de
Version 1.3
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising