Grundfos NKG Installation And Operating Instructions Manual
Double seal back-to-back
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Also See for NKG:
- Instructions manual (100 pages) ,
- Installation and operating instructions manual (55 pages) ,
- Service instructions manual (38 pages)
Related Manuals for Grundfos NKG
Summary of Contents for Grundfos NKG
- Page 1 GRUNDFOS INSTRUCTIONS Double seal (back-to-back) Installation and operating instructions...
- Page 3 English (GB) Installation and operating instructions ............5 Български...
- Page 4 Svenska (SE) Monterings- och driftsinstruktion ............. 173 Türkçe (TR) Montaj ve kullanım kılavuzu .
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Page 5: Table Of Contents
These installation and operating instructions are a supplement to arrangement would either wear out or be damaged. installation and operating instructions for NK, NKG pumps. Pumps with a back-to-back shaft seal arrangement require a pressurising system providing the correct pressure to the barrier fluid in the barrier fluid chamber. -
Page 6: Operating Conditions
6. Installation The operating conditions stated in the installation and operating 6.1 Barrier fluid connection instructions for NK, NKG pumps also apply for back-to-back shaft seal pumps. 6.1.1 Back-to-back seal arrangement with two separate shaft seals in a seal chambe 5.1 Barrier fluid... -
Page 7: Pressure Sources
Fig. 6 Pump with pressure intensifier Vent screw for pumped liquid Standard shaft seals: The Grundfos pressure intensifier Cartridge seal inlet pipe connection - 3/8" maintains a pressure that is 1.5 - 4 bar higher than the pumped Cartridge seal outlet pipe connections - 3/8"... - Page 8 Relief valve, opening pressure 25 bar Vent screw Spring for piston Pressure gauge (barrier fluid) Pressure gauge (pumped liquid) Dimensions of pump with pressure intensifier Fig. 9 Pump with pressure intensifier Dimensions apply to all NKG pump sizes Shaft seal diameter a [mm] b [mm]...
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Page 9: Start-Up
Note: A non-return valve must be fitted to the inlet pipe. Starting up the pump See also installation and operating instructions for NK, NKG pumps. • Open the isolating valve on the discharge side. • Start the pump, and check the direction of rotation. -
Page 10: Pressure Intensifier
• Disconnect the barrier fluid supply pipe from the intensifier. Starting up the pump See also installation and operating instructions for NK, NKG pumps. • Start the pump, and check the direction of rotation. See the correct direction of rotation on the motor fan cover. -
Page 11: Maintenance
Dosing pump If Grundfos is requested to service the pump, Grundfos must be See the installation and operating instructions for the dosing contacted with details about the pumped liquid, etc. before the pump. - Page 12 Tél.: +32-3-870 7300 20th km. Athinon-Markopoulou Av. Turkey Télécopie: +32-3-870 7301 P.O. Box 71 New Zealand GRUNDFOS POMPA San. ve Tic. Ltd. Sti. GR-19002 Peania GRUNDFOS Pumps NZ Ltd. Belorussia Gebze Organize Sanayi Bölgesi Phone: +0030-210-66 83 400 17 Beatrice Tinsley Crescent Представительство...
- Page 13 Thinking ahead makes it possible Innovation is the essence 97527932 0911 Repl. 97527932 1110 The name Grundfos, the Grundfos logo, and the payoff Be–Think–Innovate are registrated trademarks ECM: 1080723 owned by Grundfos Management A/S or Grundfos A/S, Denmark. All rights reserved worldwide. www.grundfos.com...
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