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www.grundfos.com

Being responsible is our foundation

Thinking ahead makes it possible

Innovation is the essence

The name Grundfos, the Grundfos logo, and the payoff Be–Think–Innovate are registrated trademarks

owned by Grundfos Management A/S or Grundfos A/S, Denmark. All rights reserved worldwide.

97527932

 0911

Repl. 

97527932 11

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ECM: 1080723

Summary of Contents for NKG

Page 1: ...GRUNDFOS INSTRUCTIONS NKG Double seal back to back Installation and operating instructions...

Page 2: ......

Page 3: ...taliano IT Istruzioni di installazione e funzionamento 75 Latvie u LV Uzst d anas un ekspluat cijas instrukcija 82 Lietuvi kai LT rengimo ir naudojimo instrukcija 89 Magyar HU Szerel si s zemeltet si...

Page 4: ...Table of contents 4 Svenska SE Monterings och driftsinstruktion 173 T rk e TR Montaj ve kullan m k lavuzu 180...

Page 5: ...the barrier fluid in the barrier fluid chamber 4 Applications The back to back double seal arangement is the optimum solution in these cases The pump is pumping toxic and explosive liquids The pump i...

Page 6: ...rangement with two separate shaft seals in a seal chambe Fig 2 Back to back seal arrangement with two separate shaft seals in a seal chamber In this back to back shaft seal arrangement the seal chambe...

Page 7: ...nt without the cooling effect of recirculation Maximum operating pressure in seal chamber 16 bar Dosing unit outlet 1 x Rp 1 4 Cartridge seal A cartridge seal is not for use with a dead end connection...

Page 8: ...Dimensions apply to all NKG pump sizes TM04 4770 2009 Pos Designation 1 Pressure intensifier 2 Piston 3 Diaphragm 4 Non return valve 5 Relief valve opening pressure 25 bar 6 Vent screw 7 Spring for p...

Page 9: ...fig 2 When the liquid starts running out of the vent hole immediately close the vent screw Cartridge seal Fill the cartridge seal with barrier fluid through one of the connections pos 1 or 3 fig 4 Wh...

Page 10: ...he suction pipe TM04 4465 1309 2 Filling with barrier fluid Fill the intensifier and the seal chamber cartridge seal with barrier fluid and connect the barrier fluid supply pipe to the unused inlet of...

Page 11: ...onnections pos 1 and 3 fig 4 2 Empty the cartridge seal This can be done in two ways Blow out remaining liquid by means of an air gun or a similar device The pressure must not exceed the pressure rati...

Page 12: ...e 81 35 448 1391 Telefax 81 35 448 9619 Korea GRUNDFOS Pumps Korea Ltd 6th Floor Aju Building 679 5 Yeoksam dong Kangnam ku 135 916 Seoul Korea Phone 82 2 5317 600 Telefax 82 2 5633 725 Latvia SIA GRU...

Page 13: ...kes it possible Innovation is the essence The name Grundfos the Grundfos logo and the payoff Be Think Innovate are registrated trademarks owned by Grundfos Management A S or Grundfos A S Denmark All r...

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