Flowserve NRG 16-50 Manuel d'utilisateur

1Installation Instructions 818954-01Level ElectrodesNRG 16-50, NRG 17-50, NRG 19-50, NRG 111-50GESTRA Steam SystemsNRG 16-50NRG 17-50NRG 19-50N

10GESTRA Steam S ystemsGESTRATechnical Data – continued –Dimensions NRG 111-50Fig. 6NRG 111-5030b = 70136140175≤ 3000Fig. 7NRG 111-50F400136≤ 3000 3

11Fig. 12N 8N 10Fig. 8Fig. 9¾", DIN EN ISO 228-1 1", DIN EN ISO 228-1∅ 33/40Functional Elements12346578Fig. 11NRG 111-50NRG 16-50, NRG 17-5

12Fig. 13fecb90adFunctional Elements – continued –NRG 16-50, NRG 17-50, NRG 19-50, NRG 111-50 four-pole connector

13Functional Elements – continued –Fig. 15NRG 16-50F, NRG 17-50F, NRG 19-50F, NRG 111-50F aluminium terminal boxGESTRA Steam SystemsGESTRAKKH1234561

141 Measuring electrode2 Bore3 Spring4 Electrode tip5 NRG 1...-50: Joint ring 27 x 32, form D, DIN 7603, 1.4301, bright annealed NRG 111-

15Important NotesSafety noteDangerWhen loosening the electrode steam or hot water might escape!This presents the risk of severe scalding all over the

16InstallationNRG 16-50, NRG 17-50, NRG 19-50, NRG 111-50, step 11. Screw electrode tip 4 into measuring electrode 1. Fig. 82. Carefully determine r

17n The seating surfaces of the standpipe or the flange provided on the vessel must be accurately machined, see Fig. 12 .n If the level electrode NR

184Examples of installation DN 100∅ 2020≥ DN 2024,5 24,520∅ 20 DN 50 ¾" ¾" ¾"≤ 20≤ 3000∅ 20≤ 90°∅ 20 ¾"≤ 90°Centre distance≥

19Examples of Installation – continued –NRG 111-50lmnpo∅ 2020 DN 80 1"∅ 20≤ 90°≥10lCentre distanceDN 80 1"DN 20DN 20DN 20qtusFig. 20 Pro

2ContentsUsage for the intended purpose ...

20l Flange PN 40, PN 63, PN 160, DN 50, DIN 2501-1 (for one electrode) Flange PN 40, PN 63, PN 160, DN 100, DIN 2501-1 (for two electrodes) Flan

21Connection of level electrodeTo connect the level electrode(s) use screened multi-core control cable with a min. conductor size 0.5 mm2, e.g. LiYCY

22Electrical Connection – continued –Wiring diagramFig. 25 Wiring of level electrode with aluminium terminal boxFig. 24 Wiring of level electrode

23Commissioning, fault indication and remedyFor additional information on commissiong procedures and troubleshooting refer to the installation manual

24818954-01/12-2009cm (808807-02) · GESTRA AG · Bremen · Printed in GermanyGESTRA Agencies all over the world:www.gestra.deGESTRA AGP. O. Box 10 54 60

3Electrical ConnectionConnection of level electrode ...

4ApplicationUsage for the intended purposeThe level electrodes NRG 16-50, NRG 17-50, NRG 19-50 and NRG 111-50 are used in conjunction with level switc

5Directives and StandardsPressure Equipment Directive (PED) 97/23/ECWater level limiters are safety accessories as defined in the Pressure Equipment Di

6NRG 16-50, NRG 17-50, NRG 19-50, NRG 111-50Technical DataService pressure NRG 16-50: PN 40, 32 bar at 238 °C NRG 17-50: PN 63, 60 bar a

7Corrosion resistanceIf the equipment is used for the intended purpose, its safety is not impaired by corrosion.SizingThe body is not designed for pul

8Technical Data – continued –Name plate / markingFig. 1Fig. 2Fig. 3Equipment designationPressure rating, thread type, material numberPressure/temper

9Technical Data – continued –Dimensions NRG 16-50, NRG 17-50, NRG 19-50Fig. 4NRG 16-50, NRG 17-50, NRG 19-50 with four-pole connector≤ 3000 100 272¾