5
-
after valve disassembly it is necessary to replace flange connection gaskets between valve and pipeline,
-
before valves re-assembly in the pipeline it is necessary to check valve operation and tightness of all connections. Tightness
test should be carried out with water pressure of 1,5 nominal pressure of the valve.
9.
REASONS OF OPERATING DISTURBANCES AND REMEDY
-
When seeking of valve malfunction reasons safety rules should be strictly obeyed
Fault
Possible reason
Remedy
No flow
Valve closed
Open the valve
Flange dust caps were not removed
Remove dust caps on the flanges
Poor flow
Dirty filter
Clean or replace the screen
Clogged pipeline
Check the pipeline
Stem leakage
Damaged sealing O-rings
Remove the valve from pipeline.
Replace sealing O-rings
Seat leakage
Damaged sealing PTFE rings
Replace sealing PTFE rings
Damaged ball
Replace the ball
Medium polluted with solid particles
Clean the valve. Fit strainer before the
valve
. Replace seats.
Broken connecting flange
Bolts tighten unevenly
Replace the valve with new one
10. VALVE SERVICE DISCOUNTINUITY
All obsolete and dismantled valves must not be disposed with houshold waste. ZETKAMA valves are made of materials
which can be re-used and should be delivered to designated recycling centres.
11. WARRANTY TERMS
- ZETKAMA grants quality warranty with assurance for proper operation of its products, providing that assembly of them is done
according to the users manual and they are operated according to technical conditions and parameters described in ZETKAMA’s
catalogue cards. Warranty period is 18 months starting from assembly date, however not longer than 24 months from the sales date.
- warranty claim does not cover assembly of foreign parts and design changes done by user as well as natural wear.
- immediately after detection, the user should inform ZETKAMA about hidden defects of the product
- a claim should be prepared in written form.
Address for correspondence :
ZETKAMA Sp. z o.o.
ul. 3 Maja 12
57-410 Ścinawka Średnia
Phone +48 74 86 52 111
Fax
+48 74 86 52 101
Website: www.zetkama.com
