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Diaphragm Relief Valve 

 
 

Operating Instructions 

 

 

www.sera-web.com 

Subject to technical modifications! 

TA  48 

Rev. 

13  en 

05/2016 

 

2.2 

Materials 

 
The materials used are stated in the order confirmation. 
 
 

Safety instructions 

 
 

3.1 

Quality instructions / purpose 

 

 

Please  read  these  operating  instructions  carefully  before  the 
diaphragm  relief  valve  is  started  or  serviced.  Observance  of 
these  operating  instructions  and,  in  particular,  the  safety  in-
structions, helps to 

 

 

avoid dangers to persons, machines, and environment 

 

increase reliability and service life of the diaphragm relief 
valve and the complete system 

 

reduce repair cost and downtime. 

 
 
The 

sera

  quality  management  and  quality  assurance  system 

for  pumps,  systems,  and  fittings  is  certified  according  to  
ISO 9001:2008. 

sera

  products  comply  with  the  valid  safety  requiremens  and 

accident prevention regulations. 
 
 
 

 

CAUTION ! 

 
Always  keep  these  operating  instructions  within  reach  at 
the place of installation. 
 

 
 
 

 

CAUTION ! 

 
Pay  attention  to  the  safety  data  sheet  of  the  pumped  me-
dium!  The  owner  must  take  corresponding  accident  pre-
vention  measures  to  protect  operating  personnel  from 
danger through the pumped media used! 
 
 
 

3.2 

Marking of notes 

 

3.2.1 

Marking of notes in these operating 
instructions 

 
 
Special  notes  in  these  operating  instructions  are  marked  with 
the general danger symbol 
 
 
 

(safety symbol in compliance with DIN 4844 

– W9)  

 
 

    

 
 
 
 

3.2.2 

Marking of notes on the product 

 
Symbols  which  are  directly  attached  to  the  diaphragm  relief 
valve,  e.g.  symbols  for  flow  direction,  are  to  be  observed  and 
kept in legible condition. 
 
 
 

3.3 

Dangers in case of inobservance of the 
safety instructions 

 
Inobservance  of  these safety  instructions can  result  in danger 
to  persons,  hazards  to  the  environment  and  damage  to  the 
diaphragm relief valve. 
 
Inobservance can result in: 
 

 

Failure  of  important  functions  of  the  diaphragm  relief 
valve/system 

 

Inobservance of prescribed methods for maintenance and 
servicing 

 

Danger to persons through chemical influences 

 

Hazards  to  the  environment  through  leaking  dangerous 
media 

 
 
 

3.4 

Safety conscious working 

 
The  safety  instructions  specified  in  these  operating  instruc-
tions,  the  national  regulations  concerning  accident  prevention 
as well as internal working-, operating-, and safety instructions 
of the owner are to be observed. 
 
 
 
 

Содержание 620.10

Страница 1: ...ct type and serial number of your diaphragm relief valve can be read off the type plate on the diaphragm relief valve Type Serial No These data are important in case of queries or for ordering spare a...

Страница 2: ...ction for maintenance and service 5 4 Areas of application and function 6 5 Test identification 6 6 Checking the packaging at the place of destination 6 7 Storage 6 8 Technical specifications 7 8 1 Di...

Страница 3: ...factory provided with a type plate The following information can be found on this type plate 1 2 3 4 5 6 Fig 01 Type plate Explanation of the indications on the type plate 1 Pe Set pressure The set pr...

Страница 4: ...corresponding accident pre vention measures to protect operating personnel from danger through the pumped media used 3 2 Marking of notes 3 2 1 Marking of notes in these operating instructions Special...

Страница 5: ...on Temperature of the pumped medium sera does not assume any responsibility if these criteria are not or only partly observed by the owner operator CAUTION The structural design of the diaphragm relie...

Страница 6: ...valves are tested in our works and set to an operative pressure The set pressure corresponds to the technical delivery condi tions which are indicated on the type plate see Fig 01 02 Table 01 Lid Seal...

Страница 7: ...Fig 03 Dimensions Type DN G A B H L1 n g 1 i 1 p 1 L2 D k s d PP PVC 620 10 8 G 50 38 80 80 13 M5 15 5 110 90 60 12 10 14 622 10 15 G 1 72 54 90 115 15 M8 17 8 145 95 65 12 11 14 623 10 20 G 1 80 60 1...

Страница 8: ...ns TA 48 Rev 13 en 05 2016 L g DN n H p i G q B q A 8 1 2 1 4581 design Connection Thread pipe connection Fig 04 Dimensions Type DN G A B H L n g 1 i 1 p 1 620 10 8 G 50 38 80 110 13 M5 10 5 622 10 15...

Страница 9: ...g to DIN 2501 PN 10 ANSI 150 lbs sq in Fig 05 Dimensions Type DN A B H L D 1 D 2 k 1 k 2 l 1 l 2 623 10 20 80 60 125 150 105 99 75 70 14 16 624 10 25 90 68 130 160 115 108 85 79 14 16 625 10 32 100 76...

Страница 10: ...626 10 10 1 5 10 7000 6 7 627 10 10 1 5 10 10000 9 12 Table 05 Technical data 9 Installation The cover is to be mounted vertically to the top The diaphragm relief valve is to be installed in such a wa...

Страница 11: ...d 10 Start up During commissioning observe the following Open all shut off valves that are mounted in the suction line and pressure line except for flushing and discharge fittings Start pump system Sl...

Страница 12: ...aphragm relief valves are factory set to the set pressure stated in the order confirmation A sealing wax seal is located on the transition piece between lid and cover 12 Operation in explosion hazardo...

Страница 13: ...perating Instructions TA 48 Rev 13 en 05 2016 Subject to technical modifications www sera web com 13 13 1 Spare and wearing parts kit Fig 12 Spare and wearing parts kit 2 3 4 5 9 7 8 10 11 12 13 14 15...

Страница 14: ...flange Item Designation 1 Hexagon screws 2 Disks 3 Lid 4 O ring 6 Cover 15 O rings 16 Valve body 17 Disks 18 Nuts Valve body kit 1 4581 Item Designation 1 Hexagon screws 2 Disks 3 Lid 4 O ring 6 Cover...

Страница 15: ...e EC safety data sheets CAUTION The diaphragm may only be replaced by authorized and qualified personnel 14 2 Changing the diaphragm Unscrew the lid Measure dimension T of the set screw with a caliper...

Страница 16: ...n Shut down the pump system and secure it against restart ing Make sure that all pipes with diaphragm relief valves are depressurized Drain the diaphragm relief valve and the connected pipes using dra...

Страница 17: ...ns for pre vention of accidents and the environmental protection regula tions such as the Waste Management Act and the German Household Water Act to protect their employees or man and the environment...

Страница 18: ...Diaphragm Relief Valve Operating Instructions 18 www sera web com Subject to technical modifications TA 48 Rev 13 en 05 2016...

Страница 19: ...Diaphragm Relief Valve Operating Instructions TA 48 Rev 13 en 05 2016 Subject to technical modifications www sera web com 19 Notes...

Страница 20: ...Diaphragm Relief Valve Operating Instructions 20 www sera web com Subject to technical modifications TA 48 Rev 13 en 05 2016...

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