Jafar 4495 Скачать руководство пользователя страница 11

 

 

 

 
 

OPERATING MANUAL 

07-2021 

11/11 

 
 

 

8.

 

WARRANTY 

 
The  product  assembled,  installed  and  operated  in  compliance  with  this  Operating  Manual  and  the  Product 
Specification Sheet is covered by a commercial warranty from the manufacturer. The warranty terms, conditions 
and period are specified in the Warranty Certificate available from 

www.jafar.com.pl

The manufacturer may provide this product with custom materials and modifications on order. The final selection 
of the product which meets the optimum criteria for the installation project in question is made by the installation 
designer, who should consider this Operating Manual along with other data and information of significance for the 
correct operation of the product. 
Failure  to  comply  with  the  guidelines  and  instructions  in  this  Operation  and  Maintenance  Manual  releases  the 
manufacturer  from  all  obligations,  liability  and  warranty.  Due  to  continuous  business  development,  the 
manufacturer reserves the right to modify and change the design of the product shown herein. 

Содержание 4495

Страница 1: ...OPERATING MANUAL 07 2021 1 11 OPERATING MANUAL Concentric butterfly valves P N 4495 4496 4497...

Страница 2: ...OPERATING MANUAL 07 2021 2 11 CONTENTS 1 INTENDED USE 3 2 TECHNICAL DESCRIPTION 3 3 PRODUCT IDENTIFICATION MARKING 6 4 STORAGE TRANSPORT 7 5 INSTALLATION 7 6 OPERATION 10 7 SAFETY 10 8 WARRANTY 11...

Страница 3: ...4497 are sealed in both directions of flow Application temperature range 0 C to 70 C Nominal pressure ratings 1 0 MPa 1 6 MPa Nominal diameter range P N 4495 lug valve DN40 DN600 mm P N 4496 flanged v...

Страница 4: ...N 4497 Operating Manual for Gas Applications The minimum valve switchover time to close or open dependent on the DN size nominal diameter is listed in Table 2 DN mm Switchover time s 40 350 10 400 60...

Страница 5: ...ium ring on which a rubber sealing ring is mounted The lug valves P N 4495 and the wafer valves 4497 feature either of the two end seal version A replaceable insert dovetail style in the size range of...

Страница 6: ...location on the valve specified in the documentation features the nameplate which contains the following data Fig 1 Valve nameplate sticker 1 Manufacturer s company and country of origin 2 Manufactur...

Страница 7: ...installation process do not leave any installation tools bolts nuts or welding wire inside of the piping or they can stop at the end seal the rubber insert or within the closure panel of the valve Th...

Страница 8: ...s is that the deposits can be entrained from the upstream of the valve by the maximum possible flow passing the bottom part of the valve closure during the opening operation Fig 4 Fig 4 A Incorrect va...

Страница 9: ...piping bend or tee Fig 5 Recommended distances from the piping bends For the valves in the size range of DN200 to DN2000 the axis of the closure drive shaft must be perpendicular to the centreline of...

Страница 10: ...warranty granted by the manufacturer 7 SAFETY All installation and operation tasks related to the product shall be only be done by qualified professionals with sufficient training and experience to as...

Страница 11: ...odifications on order The final selection of the product which meets the optimum criteria for the installation project in question is made by the installation designer who should consider this Operati...

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