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Q

Q

̖(GB)

 

 

 

TF

īTF

T

HT250

QT400-18

ZG230-450

 

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TF

S~

P

ZCuSn1OPb1

HT250

ZCuZn16Si4

ZCOCr18nIi12Mo2Ti

 

S

 

P

 

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2Cr13

 

45

 

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TF

S~

P

ZCuSnlOPbl

HT250

ZCuZn16Si4

ZGOCr18nIi12Mo2Ti

 

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     Couplings of flexible  type connect the pump with the motor directly.

     Material:

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Materials

Code(GB)

Volute

 

casing

Cast iron

Ductile cast iron

Cast steel

HT250

QT400-18

ZG230-450

 

 

Impeller

 

Cast iron

Bronze

Brass

Stainless steel

ZCuSn10Pb1

HT250

ZCuZn16Si4

ZGOCr18nIi12Mo2Ti

Shaft

 

Stainless steel

Cr-steel

2Cr13

45

Casing

Wear

rlng

Cast iron

Bronze

Brass

Stai nless steel

ZCuSn1OPb1

HT250

ZCuZn16Si4

ZGOCr18nli12Mo2Ti

 

. Disassemable And Assembly

   1. Close the  suction and  delivery gate valves and drain the pump by opening the drain plug;

   2. Remove any pipes between additional equipment and the pump;

   3. Remove coupling guard;

   4. Loosen and push back the seal cover;

   5. Undo flange screws and release the upper casing half from the lower casing half with the aid of the forcing screws, remove with lifting gear and store in a safe place.

   6. In case of oil - lubricated pumps, drain off the oil;.

   7. Remove the screw connection between bearing housing and volute casing. Also undo the nuts and bolts which secure the bearing cover;

   8. Press the bearing housing out of the recesses and lift the rotor upwards out of the lower casing half. For further disassembly, place securely in horizontal positon.

   9. Pull off the bearing housing of the fixed bearing( opposite the drive end).