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Liquid pulsation damper 

Use 

KNF Flodos BA_FPD_EN_04_069182 
Translation of Original Operating and Installation Instructions

 

2.  Use 

 

Intended use 

2.1.

The liquid pulsation damper is intended for pulsation damping 

when transferring and metering liquids. 

Owner's responsibility 

Only  install  and  operate  the  liquid  pulsation  damper  under  the 
operating  parameters  and  conditions  described  in  Chapter  4, 

Technical data. 

Only complete liquid pulsation dampers may be taken into service. 

Before transferring or metering a medium, check that it can be 

transferred without risk in the specific application case. 

Before using a medium, make sure that it is compatible with the 
materials used to construct the upper section and the separating 

diaphragm. 

The temperature of the medium must lie within the permissible 

temperature range (see Chapter 4). 

The transferred medium should not contain  particles as these can 
prevent  the  liquid  pulsation  damper  from  working  correctly.  If  this 
cannot be ensured, a filter  with a sufficiently  large filter area must 

be used upstream of the liquid pulsation damper. 

The  .51  versions  of  our  liquid  pulsation  dampers  have  been  certi-
fied  by  NSF  according  to  the  standard  NSF/ANSI  169  and  are 

therefore suitable for use with foodstuffs without any restrictions. 

All materials used have been checked through a series of toxico-
logical tests. In order to ensure that the food grade quality is main-
tained, NSF will carry out a yearly audit checking our certified 

products. 

Only the liquid pulsation dampers marked with ".51" are NSF-
certified and contain a defined material combination that also has a 

FDA certificate of conformity. 

NSF: National Sanitary Foundation 
FDA: Food and Drug Administration 

ANSI: American National Standard Institute 

* Liquid pulsation dampers with other customer-specific certified material 
combinations are available on request. 

 

  All certified liquid pulsation dampers are clearly marked with 

“.51” in the type designation along with the NSF-logo on the 
type plate. If either or both of these markings are missing, the 

liquid pulsation damper is not certified. 

Operating parameters and 

conditions 

Requirements for 

transferred medium 

.51* version 

– version with food 

grade approval 

Summary of Contents for FPD 06

Page 1: ...d observe these Oper ating and Installation Instruc tions An additional letter prefixing the FPD model code is a coun try specific designation with no technical relevance Contents Page 1 About this do...

Page 2: ...the possible consequences of failure to observe the warning The signal word e g Warn ing indicates the level of danger This specifies measures for avoiding the danger and the consequences of failure t...

Page 3: ...fficiently large filter area must be used upstream of the liquid pulsation damper The 51 versions of our liquid pulsation dampers have been certi fied by NSF according to the standard NSF ANSI 169 and...

Page 4: ...NSF ANSI 169 standard regulates OEM products it does not define cleaning methods for specific OEM products All parts in contact with the medium can be replaced as spare parts without losing the certif...

Page 5: ...or handling such media Always ensure adherence to all information stickers on the liquid pulsation damper such as flow direction arrows and type plates and keep stickers in legible condition All repla...

Page 6: ...69182 Translation of Original Operating and Installation Instructions 6 All repairs to the liquid pulsation damper must be carried out by the relevant KNF Customer Service team Only use genuine parts...

Page 7: ...60 NF 100 FPD 1 06 6 NF 1 5 NF 1 10 NF 1 30 NF 1 60 FPD 10 10 NF 300 NF600 FPD 1 10 10 NF 1 100 NF 1 300 NF 1 600 Tab 2 Materials selection Head material selection FPD 06 KPZ FPD 06 KP 51Z FPD 1 06 KP...

Page 8: ...r models with KT TT max 40 mWG Hydraulic connections Parameter Value Thread for connecting piece FPD 06 1 06 G 1 8 Thread for connecting piece UFPD 06 1 06 NPT 1 8 Thread for connecting piece FPD 10 1...

Page 9: ...that it reduces the pressure pulsation that is generated in particular by reciprocating displacement pumps In doing so the quality of the damping is significantly influenced by the banking up pressur...

Page 10: ...quid pulsation damper when using a pump with integrated overpressure limiting 27 is not recom mended In this case to secure the system a pressure control valve FDV should be connected downstream of th...

Page 11: ...rking in an area under pressure this is imperative to prevent the hoses from coming off the hose connectors In the case of special models the internal nozzle cross section specified in the system para...

Page 12: ...ves Rinse the liquid pulsation damper with a neutral liquid and pump empty 7 2 1 Flushing the liquid pulsation damper When transferring aggressive media KNF recommends flush ing the liquid pulsation d...

Page 13: ...position of the O ring 4 and the sealing cord 3 6 Carefully insert the new auxiliary diaphragm 6 7 Changing the O ring 7 4 Remove the old O ring 4 1 Insert the new O ring 4 in its groove 2 Changing t...

Page 14: ...required see Chapter 7 2 Viscosity of the transferred medium is too high Contact KNF Incorrect interchange of outlet and inlet line connections Remove outlet and inlet lines and re connect correctly T...

Page 15: ...pulsation damper model the serial number and the transferred media in the form below and send the signed form together with the flushed and cleaned liquid pulsation damper to KNF customer services se...

Page 16: ...Liquid pulsation damper For your notes KNF Flodos BA_FPD_EN_04_069182 Translation of original Operating and Installation Instructions 16...

Page 17: ...Liquid pulsation damper For your notes KNF Flodos BA_FPD_EN_04_069182 Translation of original Operating and Installation Instructions 17...

Page 18: ...KNF worldwide Please find your local KNF partners at www knf com...

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