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Condensate in the expansion
chamber of the safety valve
Improper drainage installation -
discharging fluid from the safety valve,
improper drainage installation, clogged
drainage system
Eliminate the incorrectness in the
discharge and drainage installations. In
the lowest point of discharge installation it
is required to apply drainage guarantying
effective discharge of residual
condensate. If the manufacturer of the
safety valve offers the version with
drainage of the expansion chamber of
valve body – it should also be considered
to use such a valve.
Noise emissions above the limit
value
(in case of discharge of steams
and gasses)
Significant flow rates at medium
discharge from the safety valve.
In the case of minor exceedances of limit
values - consider the possibility of
reducing the flow speed through the use
of larger safety valve. It should be
checked, however, that "oversizing" of the
valve did not cause the instability of its
work (see "vibrations").
In most cases it is necessary to apply
silencer directly behind the valve and
screening of the valve (noise barriers).
While designing the outlet pipes fitted
with silencers, static and dynamic
interaction of flow stream flowing through
the silencer should be taken into account.
Silencer body should not interfere with
effective operation of safety valve and
additional pressure drops should be taken
under consideration while calculating the
discharge, and drainage pipes of the valve.
In each case it should be considered not to
exceed the value of backpressure allowed
by the manufacturer of the safety valve
8.
Warranty
ZETKAMA grants quality warranty with assurance for proper operation of its products, providing that assembly of them
is done according to the user’s 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.
Other warranty terms are to be agreed between the manufacturer of the valve and the purchaser. The manufacturer
reserves the right to introduce technical changes as the result of improving construction and manufacturing
technology. Failure to comply by the user with the regulations and indications included in this user’s manual shall
exempt the manufacturer from any liability and warranty.
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