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I  N  S  T  R  U  C  T  I  O  N  S 

For the installation and maintenance of    D C 1 5 2 5   -   D C 1 5 5 0    

d e s u p e r h e a t e r s

 

 

IMI0049E.doc 

Rev.0 20/08/14 

 

20090 SEGRATE (MI)- via E.Fermi 

EMAIL: 

[email protected]

 

TEL.(02) 269912.1 - FAX.(02) 2692.2452

 

Page 2 of 16

 

 

MAIN INDEX 

 

 

Pag. 

General information  ............................................................................................3 

Guarantee ........................................................................................................... 3 

Validity of instructions .......................................................................................... 3 

Safety indications................................................................................................. 4 

Safety warnings ................................................................................................... 5 

Safety precautions ...............................................................................................6 

Transport, handling and storage ..........................................................................7 

Inst. and ass. instructions for DC1525 - DC1550  

8.1  Cross-section drawings ..................................................................................... 8 

8.2  Removing the packaging ................................................................................... 9 

8.3  Installation .........................................................................................................9 

8.4  Start-up..............................................................................................................12 

      9   Maintenance ........................................................................................................12

 

    9.1   Removal ..............................................................................................................13 

    9.2   Disassembly ........................................................................................................13 

    9.3   Spray cylinder ......................................................................................................13 

    9.4   Body extension ....................................................................................................14 

    9.5   Piston assembly...................................................................................................14 

    9.6   Packing gland ......................................................................................................14 

    9.7   Re-assembly........................................................................................................14 

    9.8   Welding................................................................................................................15 

    9.9   Re-installation ......................................................................................................15 

   10   Replacement parts...............................................................................................16 

   10.1  Inspection procedure ...........................................................................................16 

   10.2  Storage ................................................................................................................16 

   11   Repairs ................................................................................................................17 

 

 

 

 

1. 

GENERAL INFORMATION: 

Summary of Contents for DC1525

Page 1: ...C T I O N S For the installation and maintenance of DC1525 DC1550 desuperheaters IMI0049E doc Rev 0 20 08 14 20090 SEGRATE MI via E Fermi EMAIL info carrarovalvole it TEL 02 269912 1 FAX 02 2692 2452...

Page 2: ...ons 4 5 Safety warnings 5 6 Safety precautions 6 7 Transport handling and storage 7 8 Inst and ass instructions for DC1525 DC1550 8 1 Cross section drawings 8 8 2 Removing the packaging 9 8 3 Installa...

Page 3: ...e defined in the manufacturer s General Conditions of Sale The applicable conditions are those stipulated in the most up to date version in existence at the time of delivery The guarantee does not cov...

Page 4: ...f necessary on how to avoid the risk The box at the top contains a warning word DANGER WARNING CAUTION ATTENTION which indicates the level of risk The box in the middle contains a drawing indicating t...

Page 5: ...sks deriving from the use of such methods Consequently CARRARO has not even attempted to start such a task Therefore whoever uses a service method or piece of equipment which is not recommended by CAR...

Page 6: ...heaters at least once two years The outer surfaces of desuperheaters reach tempe ratures approximately equal to the temperature of the fluid flowing through them For this reason if fitting a desuperhe...

Page 7: ...s must be stored in a dry environment and protected against atmospheric conditions They must not be removed from their crates or packaging until immediately before installation The protective material...

Page 8: ...n AISI 316L 5 Fastener ring Nitronic 60 6 Bushing Nitronic 60 7 Stem AISI 316 8 Plug AISI 316L 9 Body pipe AISI 316L 10 Liquid flange AISI 316L 11 Gasket PTFE AISI 316L 12 Packing set PTFE 13 Stud A 1...

Page 9: ...tag number correspond to the specifications of the order Remove the desuperheater from its package by lifting it with slings for heavy loads wrapped round its body Do not lift the unit by the liquid...

Page 10: ...ater from the temperature sensor is between 12 and 15 m although the specific distance for the application is generally specified in the quote Longer distances ensure complete evaporation of the liqui...

Page 11: ...y recommended to remove internal moisture 8 4 START UP Make sure that all the components are correctly installed The supply for the instrumentation air pipes must be connected as indicated in the inst...

Page 12: ...ick change version with the possibility of easy replacement of components without trim threaded or welded If it is only necessary to replace the trim when the disconnected actuator can be removed afte...

Page 13: ...of the body extension and adjust it by file if necessary 9 5 PISTON ASSEMBLY Extract the piston and stem The piston and stem are always supplied as a single assembly If the piston shows no signs of w...

Page 14: ...ng procedure specification is available from Carraro on request Both TIG and ARC welding are acceptable and the recommended electrode material is ER NiCrMo3 At least 2 tack welds are necessary They mu...

Page 15: ...of special spray nozzle assemblies designed for a particular type of service is 8 weeks 10 2 STORAGE At the time of receipt check that the crate and the desuperheater are free from damage If you find...

Page 16: ...ts or information always indicates the serial number shown on the name plate attached to the desuperheater 11 3 Name plate example 11 4 To ensure the desuperheaters treated in this manual work correct...

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