Sera 620.D Operating Instructions Manual Download Page 1

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Diaphragm Pressure Keeping Valve

Operating Instructions

TA 49

Rev.

13 en

05/2016

Technical modifications reserved!

www.sera-web.com

Product:

Diaphragm pressure keeping

valve

Type

620.D

622.D

623.D

624.D

625.D

626.D

627.D

Please state here the exact type and serial
number of your diaphragm pressure keeping
valve.

(can be read off the type plate on the diaphragm pressure
keeping valve)

Type:

Serial No.:

These data are important in case of queries or for ordering
spare- and wearing parts and must absolutely be stated.

Manufacturer:

sera GmbH

sera-Straße 1
34376 Immenhausen
Germany
Tel.  +49 5673 999-00
Fax. +49 5673 999-01
www.sera-web.com
[email protected]

Translation of the original operating instructions!

Summary of Contents for 620.D

Page 1: ...ype and serial number of your diaphragm pressure keeping valve can be read off the type plate on the diaphragm pressure keeping valve Type Serial No These data are important in case of queries or for...

Page 2: ...al protection 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...

Page 3: ...side of the pump 2 Types 2 1 Type plate Each sera diaphragm pressure keeping valve is factory pro vided with a type plate The following information can be found on this type plate 1 2 3 4 5 6 Fig 01 T...

Page 4: ...orresponding 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...

Page 5: ...e of installation 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...

Page 6: ...2 6 Checking the packaging at the place of destination On delivery immediately check the packaging for damage Report any external damage immediately to the transport company and fill in a damage repor...

Page 7: ...oose flange 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 D 8 G 50 38 80 80 13 M5 15 5 110 90 60 12 10 14 622 D 15 G 1 72 54 90 115 15 M8 17 8 145 95 65 12 11 14 623 D 20 G...

Page 8: ...eserved TA 49 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 D 8 G 50 38 80 110 13 M5 10 5 622 D...

Page 9: ...cording 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 D 20 80 60 125 150 105 99 75 70 14 16 624 D 25 90 68 130 160 115 108 85 79 14 16 625 D 32 100...

Page 10: ...4000 4 0 626 D 10 1 0 7 0 7000 6 7 627 D 10 1 0 7 0 10000 9 12 Table 05 Technical data 9 Installation The diaphragm pressure keeping valve is to be installed in the pressure line The cover is to be mo...

Page 11: ...nction of the diaphragm pressure keeping valve installed in the pressure line of the dosing pump is as follows The diaphragm closes the inlet channel by the pressure spring initial tension and thus th...

Page 12: ...ssure keeping valves are factory set to the set pressure stated in the order confirmation A seal ing wax seal is located on the transition piece between lid and cover 12 Operation in explosion hazardo...

Page 13: ...alve Operating Instructions TA 49 Rev 13 en 05 2016 Technical modifications reserved 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 1...

Page 14: ...ose 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 C...

Page 15: ...opened Observe the 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 sc...

Page 16: ...mp system and secure it against restart ing Make sure that all pipes with diaphragm pressure keeping valves are depressurized Drain the diaphragm pressure keeping valve and the connected pipes using d...

Page 17: ...ations 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 environm...

Page 18: ...Diaphragm Pressure Keeping Valve Operating Instructions 18 www sera web com Technical modifications reserved TA 49 Rev 13 en 05 2016...

Page 19: ...Diaphragm Pressure Keeping Valve Operating Instructions TA 49 Rev 13 en 05 2016 Technical modifications reserved www sera web com 19 Notes...

Page 20: ...Diaphragm Pressure Keeping Valve Operating Instructions 20 www sera web com Technical modifications reserved TA 49 Rev 13 en 05 2016 Notes...

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Sera 620.D, Operating Instructions Manual

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