Flowserve NRG16-12 Manuel d'utilisateur

1NRG 16-12NRG 17-12NRG 19-12Installation Instructions 818626-00Level Electrode NRG 16-12, NRG 17-12, NRG 19-12GESTRA Steam SystemsGESTRA

10Functional Elements NRG 1...-12Fig. 10QRONKLMP

11A Measuring electrodeB BoreC SpringD Electrode tipE Disk (measuring surface extension)F Star-lock washerG Set screwH Joint ring 27 x 32, form

12Attention The seating surfaces and threads on the vessel and mounting flange must be accurately machined, Fig. 9 Use GESTRA PN 160 hat flange when

13Important notes For the approval of the boiler standpipe the relevant regulations must be observed. For typical installation examples refer to p

14Examples of Installation DN 100Fig. 13∅ 2020DN 20DN 2024.5 24.520Fig. 11Fig. 14 DN 50 ¾" BSP ¾" BSP ¾" BSP≤ 20≤ 3000DN 20∅ 20≤ 9

151 Flange PN 40, PN 63, PN 160, DN 50, DIN 2501-1 Flange PN 40, PN 63, PN 160, DN 100, DIN 2501-12 For the approval of the boiler standpipe the r

16Wiring – continued –Wiring diagramFig. 15Fig. 16This wiring diagram is only valid for France.NRS 1-8NRS 1-8U1-2U1-2

17Apply mains voltage to level switch NRS 1-8.CommissioningCheck whether the NRG 1…-12 and the associated controller NRS 1-8 are wired in accordance w

18Operational MalfunctionsFault-finding list for troubleshootingLevel electrode exposed – high-level alarmFault: Mains voltage is not applied to level

19DisposalDecommissioningRemove the level electrode and separate the waste materials in accordance with the material specification.Electronic componen

2ContentsUsage for the intended purpose ...

20818626-00/306cm · © 2003 GESTRA AG · Bremen · Printed in GermanyGESTRA AGP. O. Box 10 54 60, D-28054 Bremen Münchener Str. 77, D-28215 B

3WiringNRG 1...-12 ...

4Important NotesDangerWhen loosening the electrode steam or hot water might escape. This presents the danger of severe scalds to the whole body.It is

5Explanatory Notes – continued –DescriptionThe level electrode NRG 1...-12 detects the max. liquid level (high level alarm) in a steam boiler. The o

6NRG 16-12, NRG 17-12, NRG 19-12Technical DataType approval TÜV· 01-02-0112Service pressure NRG 16-12: 32 bar at 238 °C NRG 17-12: 60 bar at 275 °

7Corrosion resistanceProvided that the equipment is used for its intended purpose, its safety is not impaired by corrosion.Technical Data – continue

8Technical Data – continued –DimensionsFig. 3NRG 16-12 withmeasuring surface extensionFig. 4NRG 17-12 withoutmeasuring surface extensionFig. 5NRG 19-

9Design NRG 1...-12Fig. 8 Fig. 9N 8N 100.5Fig. 6 Fig. 7 ¾" BSP, ISO 228-1∅ 33IHJSAGFBCDE