OPERATING MANUAL
07-2022
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Remove the compression ring (5). Open the flap (3)
with the seal (4) so that the seal is completely
relieved. Carefully clean the flap where the seal is
installed. In addition, the welded seat and the
compression ring must be cleaned. The flap seal
should be lubricated with a grease approved for
contact with drinking water and certified by the
National Institute of Hygiene (PZH). Install the seal
in the place provided for it in the flap, then install the
compression ring starting from the initial centring of
the ring with the screws (7). Tighten the screws and
washers alternately to the torque listed in the table
below. Tighten screws (7) in the butterfly valve flap.
Butterfly valve DN
Screw thread
Screw tightening torque
DN200 – DN250
M8
20 Nm
DN300 – DN350
M10
35 Nm
DN400 – DN1200
M12
60 Nm
4.
SAFETY
All installation and operation tasks related to the product shall be only be done by qualified professionals with
sufficient training and experience to assess the current situation and identify and avoid hazards. Failure to follow
this warning or this Operating Manual may cause death, severe bodily injury or substantial property damage.
Fabryka Armatur Jafar S.A. shall not be liable for any accidents or emergencies related to incorrect installation or
operation of the product. Note that the valve installation could be pressurized or contain various type of stray gas
or aggressive liquids. If the installation is operated explosion hazard zones, ATEX requirements may apply; this
will require suitably trained professionals (according to ATEX requirements). Do not use tools which may
generate electrostatic discharge in the ATEX zone.
Do not use the product without thorough knowledge and understanding of this Operating Manual. Follow the
general health and safety rules. Keep this Operating Manual throughout the service life of the product to ensure a
safe operation of the latter.
5.
WARRANTY
The product assembled, installed and operated in conformity with this Operating Manual and the data sheet is
covered by a guarantee from the manufacturer. The warranty terms, conditions and period are given on the website
http://www.jafar-valves.com/en/obsluga-gwarancyjna-i-pogwarancyjna
. The tab can only be accessed after
creating an account in
Customer area
and then logging in.
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 constant development of our company, we reserve
the right to introduce modifications and structural alterations to the product presented in this document.
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