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Summary of Contents for SGB DLR-2 Series
- Page 1 Overpressure leak detector DLR – 2 Z – 65.26 - 304 Art. no.: 606 202 Documentation DLR - 2 11/2004 Status: SICHERUNGSGERÄTEBAU GMBH Hofstraße 10 57076 Siegen...
- Page 2 - GI-1 - OVERPRESSURE LEAK DETECTOR DLR - 2 Contents of the documentation Technical description by SGB 12 pages Drawings accompanying the technical description 4 pages Technical data 1 page Worksheet: Installing threaded fittings, AB - 820 500 2 pages...
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Page 3: Table Of Contents
- 1 - OVERPRESSURE LEAK DETECTOR DLR-2 Table of contents Page Object Type Field of application Pipework Material to be transported Pressure resistance of the interstitial space Functional description Switching values of the leak detector Normal operation Air or liquid leak Overpressure valve Number of interstitial spaces to be connected Assembly instructions... -
Page 4: Object
- 2 - OVERPRESSURE LEAK DETECTOR DLR-2 1. Object Overpressure leak detector without integrated pressure generator for double-wall pipework us- ing inert gas as the leak detection medium. 2. Type DLR-2/11 for a nominal pressure of max. 11 bar in the interstitial space. DLR-2/22 for a nominal pressure of max. -
Page 5: Functional Description
- 3 - OVERPRESSURE LEAK DETECTOR DLR-2 4. Functional description The overpressure leak detector DLR-2 monitors both walls of pipework for leaks. The monitor- ing pressure is so high that leaks in the inner or outer wall are indicated by a fall in pressure. An inert gas (usually nitrogen from gas bottles ) is used as the leak detection medium. -
Page 6: Number Of Interstitial Spaces To Be Connected
- 4 - OVERPRESSURE LEAK DETECTOR DLR-2 4.5. Number of interstitial spaces connected The number of individual pipes to be monitored depends on the overall volume of interstitial space. According to the specifications in prEN 13160, 10m must not be exceeded. The length of pipework to be monitored (per pipeline) should not exceed 1200 m. -
Page 7: Assembly Of The Connection Pipes (Between Leak Detector And) Pipework
(3) The maximum pressure which can be set on the pressure reducing device should not ex- ceed the testing pressure of the interstitial space (SGB recommendation). 5.6. Gas bottle and pressure reducing device (functional test and putting into operation) (1) Following the secure upright installation of the gas bottle, remove the protective hood. -
Page 8: Electrical Connection
- 6 - OVERPRESSURE LEAK DETECTOR DLR-2 (7) After completion of the functional test or when changing the bottle: – Close the shut-off valve on the pressure reducing device. – Separate the pressure reducing device from the interstitial space (testing device). –... -
Page 9: Setting Other Switching Values
- 7 - OVERPRESSURE LEAK DETECTOR DLR-2 Note: should the pressure not build up despite the gas bottle being connected, the leak must be lo- cated and eliminated (if necessary check the pressure reducing device for the correct setting). (8) It must be ensured that the testing pressure of the interstitial space is not exceeded during the whole pressure build-up process. -
Page 10: Operating Instructions
- 8 - OVERPRESSURE LEAK DETECTOR DLR-2 (18) If the "alarm ON" pressure value does not correspond to the value determined under item (5), the pressure switch can be readjusted, otherwise continue with item (19): Tightening the screw leads to higher pressure values, loosening to lower pressure values: DLR-2/11: 1 rotation ~ 550 mbar DLR-2/22: 1 rotation ~ 750 mbar (19) Insert the safety pin in the pressure switch. -
Page 11: Use For Intended Purpose
- 9 - OVERPRESSURE LEAK DETECTOR DLR-2 7.3. Use for intended purpose • Underground double-wall pipework. • Feed pressure in the inner tank must be at least 1 bar lower than the minimum alarm pres- sure. • Pipework must be grounded according to valid regulations •... - Page 12 - 10 - OVERPRESSURE LEAK DETECTOR DLR-2 (5) Repeat the procedure from items (2) to (4) for each further test valve of the pipe(s) con- nected to this leak detector. (6) Connect the pressure tank to coupling 6.1. (7) Set the pressure regulating valve to nominal pressure. (8) Open the shut-off valve on the pressure reducing device.
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Page 13: Alarm
- 11 - OVERPRESSURE LEAK DETECTOR DLR-2 (1) Insert the test pressure gauge in test coupling 51, connect the testing device to coupling 6.2 (cf. P-115 520 no. I). (2) The current pressure is indicated on the test pressure gauge. (3) Any deviations in pressure must be assessed as follows: (4) Determine the difference between nominal pressure and the value "alarm ON"... -
Page 14: Marking
- 12 - OVERPRESSURE LEAK DETECTOR DLR-2 • Check there is no gas around before and during work. • Close openings through which an explosive atmosphere can escape absolutely gastight. • Do not carry out dismantling work with tools which cause sparks (saw, parting-off grinder…). If it should be unavoidable, pay particular attention to EN 1127. - Page 15 06-11-2000 M1 - 102 021-022...
- Page 16 06-11-2000 M2 - 102 021-022...
- Page 17 04-12-2000 P - 115 520...
- Page 18 18-12-2000 SL - 851 700...
- Page 19 - TD-1 - OVERPRESSURE LEAK DETECTOR DLR – 2 Technical data Electrical data (voltage version: see type plate!) Electrical supply (without external signal) 230 V – 50 Hz – 10 W 115 V – 60 Hz – 10 W 24 V (=) - 10 W 12 V (=) - 10 W Switch contact load, terminal strips AS max.
- Page 20 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 21 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 22 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 26, 2001 Kolonnenstraße 30 L Telephone: (030) 78730-315 Fax:...
- Page 23 Page 3 of the general approval no. Z-65.26-304 issued by the Building Inspection Authorities on June 26, 2001 SPECIAL PROVISIONS Subject of approval and field of application The subject of this general approval is an overpressure leak detector of the type designation "DLR-2/11."...
- Page 24 Page 4 of the general approval no. Z-65.26-304 issued by the Building Inspection Authorities on June 26, 2001 Certificate of conformity 2.3.1 General Conformity of the leak detector with the provisions of the present general approval must be confirmed by the manufacturer’s declaration of conformity, issued on the basis of in-house production inspection and testing and initial testing of the leak detector by an authorised technical control board.
- Page 25 Page 5 of the general approval no. Z-65.26-304 issued by the Building Inspection Authorities on June 26, 2001 Provisions concerning use, maintenance and regular checks The leak detector must be operated and maintained according to paragraphs 6 and 7 of the technical specification .
- Page 26 Company Sicherungsgerätebau GmbH Hofstraße 10 D- 57076 Siegen With this declaration, SGB confirms that the leak detectors specified above fulfill the protection requirements established in EC Directive 89/336/EEC for EC Directive 73/23/EEC for EC Directive 94/9 EEC for...
- Page 27 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.
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