SGB DL-4000 Series Documentation

Overpressure leak detector

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Overpressure leak detector
DL – 4000
Z – 65.23 - 309
Art. no.:
603 402
Documentation DL - 4000
Status:
11/2004
SICHERUNGSGERÄTEBAU GMBH
Hofstraße 10
57076 Siegen

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Summary of Contents for SGB DL-4000 Series

  • Page 1 Overpressure leak detector DL – 4000 Z – 65.23 - 309 Art. no.: 603 402 Documentation DL - 4000 Status: 11/2004 SICHERUNGSGERÄTEBAU GMBH Hofstraße 10 57076 Siegen...
  • Page 2 - GI-1 - OVERPRESSURE LEAK DETECTOR DL - 4000 Contents of the documentation Technical description by SGB 13 pages Drawings accompanying the technical description 4 pages Technical data 1 page Size of drying filter 1 page dimension of the housing, measurement of the drill hole...
  • Page 3: Table Of Contents

    - 1 - OVERPRESSURE LEAK DETECTOR DL-4000 Table of contents Page Object Type Field of application Tank Material to be stored Exclusions Functional description Minimum and maximum pressure values for the tanks Switch values of the leak detector Normal operation Air or liquid leak Drying of the air / drying filter Overpressure valve...
  • Page 4: Object

    - 2 - OVERPRESSURE LEAK DETECTOR DL-4000 1. Object Leak detector for double-wall tanks. 2. Type DL-4000/500 for tanks with a testing pressure of 500 mbar in the interstitial space. DL-4000/600 for tanks with a testing pressure of 600 mbar in the interstitial space. 3.
  • Page 5: Functional Description

    - 3 - OVERPRESSURE LEAK DETECTOR DL-4000 4. Functional description The overpressure leak detector DL-4000 monitors both walls of a tank for leaks. The monitoring pressure is so high, that leaks below or above the liquid level (stored material and groundwater) are indicated by a fall in pressure.
  • Page 6: Air Or Liquid Leak

    - 4 - OVERPRESSURE LEAK DETECTOR DL-4000 4.4. Air or liquid leak If there is a leak below or above the level of the liquid or the groundwater, air escapes from the interstitial space. The pressure falls until the overpressure pump is switched on to recreate the operating pressure.
  • Page 7: Personal Protective Equipment

    - 5 - OVERPRESSURE LEAK DETECTOR DL-4000 (2) Heed relevant accident prevention regulations. (3) Heed explosion protections measures. 5.2. Personal protective equipment The parts listed here refer exclusively to safety during work on the equipment which could cause an explosion. If work is being carried out in areas where an explosive atmosphere is very likely, the following pieces of equipment represent the minimum requirement: •...
  • Page 8: Assembly Of The Drying Filter

    - 6 - OVERPRESSURE LEAK DETECTOR DL-4000 (7) Seal the protective pipe gastight. (8) Avoid electrostatic charge (e.g. when introducing and pulling through pipes). (9) For details about the connection technology refer to worksheet AB-820 500 5.5. Assembly of the drying filter (1) As near to the leak detector as possible.
  • Page 9: Operating Instructions

    - 7 - OVERPRESSURE LEAK DETECTOR DL-4000 Build up the pressure using the assembly pump via the pressure line, never via the test cock of the leak detector. Note: should the pressure not build up with the assembly pump connected, the leak must be located and eliminated (if necessary check the assembly pump for feed capacity or pressure reducer for the correct setting).
  • Page 10: Use For Intended Purpose

    - 8 - OVERPRESSURE LEAK DETECTOR DL-4000 7.3. Use for intended purpose • Underground double-wall tanks, the side of the wall coming into contact with the stored ma- terial must be impermeable to substances which could produce potentially explosive va- pours.
  • Page 11 - 9 - OVERPRESSURE LEAK DETECTOR DL-4000 7.4.2 Checking the through connections of the interstitial space If several interstitial spaces are connected, each individual interstitial space must be checked for through connections: (1) If several tanks are connected via a distributor, close all the shut-off cocks on the distribu- tors.
  • Page 12 - 10 - OVERPRESSURE LEAK DETECTOR DL-4000 (4) Close the Venting device and establish the switching values "Alarm OFF" and "Pump OFF", note the values. (5) Test cock in position "I", remove the test pressure gauge. (6) Open all the test cocks on the distributor which have a tank connected. 7.4.5 Checking the overpressure valve using the testing device (1) If several tanks are connected via a distributor, close all the shut-off cocks on the distribu- tor.
  • Page 13 - 11 - OVERPRESSURE LEAK DETECTOR DL-4000 (7) Set the test cock to position "I", remove the test pressure gauge. (8) Open all the test cocks on the distributor which have a tank connected. 7.4.7 Testing the air-tightness (1) Check that all the shut-off cocks with tanks connected are open. (2) Connect the test pressure gauge to the test cock, position "III".
  • Page 14: Alarm

    - 12 - OVERPRESSURE LEAK DETECTOR DL-4000 (2) Remove the lead on the "acoustic alarm" switch, turn off the acoustic alarm and inform a qualified company immediately. (3) The expert from the qualified company or the operator must establish why the alarm was triggered, eliminate the problem and then check that the leak detection system is function- ing correctly as described in section 7.4.
  • Page 15 - 13 - OVERPRESSURE LEAK DETECTOR DL-4000 Relay (optionally available) Reflux barrier with filter Buzzer Overpressure valve "Acoustic alarm" switch Drying filter Interstitial space Test tank 1 litre Test muff for pressure gauge Sicherungsgerätebau GmbH, Siegen 27/11/2001 Ihr Partner für Leckanzeigetechnik...
  • Page 16 230 V / 50 Hz 06-11-2000 M1 - 101 400-410...
  • Page 17 230 V / 50 Hz 06-11-2000 M2 - 101 400-410...
  • Page 18 08-11-2000 SL - 851 400...
  • Page 19 Kl. 1,0 09-11-2000 P - 115 394...
  • Page 20: Technical Data

    - TD-1 - OVERPRESSURE LEAK DETECTOR DL – 4000 Technical data Electrical data (voltage version: see type plate!) Electrical supply (without external signal) 230 V – 50 Hz – 60 W 115 V – 60 Hz – 60 W 24 V (=) - 25 W 12 V (=) - 25 W Switch contact load, terminal strips AS max.
  • Page 21 Drying filter for DL-4000 Size of drying filter for underground tanks: TF 180 Size of drying filter for aboveground tanks: TF-Type: TF 180 TF 1 TF 2 TF 6 Volume of interstitial space: ≤ 200 l ≤ 500 l ≤ 1500 l ≤...
  • Page 22 B x H x T = 280 x 200 x 120 Space Platz für to seal Verplombung des Ton-Aus- Schalters acoustic alarm switch 28-04-2003 Bohrbild/Abmessung Dimension / Measurement...
  • Page 23 Work Sheet: AB-820 500 Pneumatic connections 1 Flare type fitting for flare type pipes 1. Lubricate the O-rings 2. Place the intermediate ring loosely in the threaded connection piece 3. Push the union nut and the thrust collar over the pipe 4.
  • Page 24 Work Sheet: AB-820 500 Pneumatic connections 5 Tube connections (socket 4 and 6 mm for EXCESS PRESSURE) 1. Push wire or screw clip over the tube 2. Push the tube onto the Cu pipe or the tube socket (if necessary heat or dampen PVC tube), tube must fit tightly all the way round 3.
  • Page 25 D E U T S C H E S I N S T I T U T F Ü R B A U T E C H N I K Anstalt des öffentlichen Rechts (German Institute for Constructional Engineering) 10829 Berlin, June 02, 1999 Kolonnenstraße 30 L Telephone: (030) 78730-315 Telefax:...
  • Page 26 Page 3 of the general approval no. Z-65.23-218 issued by the Building Inspection Authorities on June 02, 1999 SPECIAL PROVISIONS Subject of approval and field of application The subject of this general approval is an overpressure leak detector of the type designation "DL-4000/.", which comprises a pressure absorber, a pressure-controlled pump and an overpressure valve as well as a leak signalling unit issuing optical and acoustic alarms.
  • Page 27 Page 4 of the general approval no. Z-65.23-218 issued by the Building Inspection Authorities on June 02, 1999 Regulations applicable to the subject of approval Composition 2.1.1 The overpressure leak detector of the type "DL-4000/." comprises a pressure absorber, a pressure-controlled pump and an overpressure valve as well as a leak signalling unit issuing optical and acoustic alarms 2.1.2 The...
  • Page 28 Page 5 of the general approval no. Z-65.23-218 issued by the Building Inspection Authorities on June 02, 1999 2.3.3 Initial testing of the leak detector by an authorised technical control board. Initial testing shall comprise the functional checks as defined in the approval principles for leak detectors on tanks.
  • Page 29 Page 6 of the general approval no. Z-65.23-218 issued by the Building Inspection Authorities on June 02, 1999 Provisions concerning use, maintenance and regular checks The leak detector must be operated and maintained according to paragraph 7 of the technical specification .
  • Page 30 PRESSURE LEAK DETECTORS DL-4000, DL-5, ELC from the Company Sicherungsgerätebau GmbH Hofstraße 10 D- 57076 Siegen With this declaration, SGB con- With this declaration, SGB con- With this declaration, SGB con- firms that the leak detector speci- firms that the leak detector speci-...
  • Page 31 Warranty Dear customer, You have purchased a high-quality leak detector from our company. All of our leak detectors undergo a 100% quality control examination. The type plate with the serial number is only affixed after all test criteria have been complied with. The warranty period for our leak detectors is 24 months, beginning on the date of installation on site.

This manual is also suitable for:

Dl-4000/500Dl-4000/600

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