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For more details on using weights
to adjust the pallet setting, read the
Adjustments section.
△
CAUTIOn
Use care when installing weights and
securing lids to avoid getting pinched.
5. Reinstall pressure and/or vacuum pallet assemblies into
their respective openings. Install the setting weights
(if required) by engaging the hole in the weight on the
appropriate pallet assembly stem.
5.1. The weights are marked with their pressure
equivalents and are shipped outside of the valve
chamber. Verify that the appropriate weights are
being installed to provide the specified pressure
and/or vacuum setting. Refer to the nameplate data
to verify the specified factory settings.
5.2. To adjust valve settings higher than minimum,
use the weights to increase the pressure setting.
Weights are packed separately within the unit
shipping package and are labelled "PRESSURE"
and/or "VACUUM". If weights are shipped with the
unit, they should be installed onto the pallets in the
valve chamber in which they are labelled. Gently
slide the weights onto the pallet stem and down on
top of the valve pallet.
For 10 in. / 250 mm FEP pallets make sure to
put the PTFE (Teflon
before adding the weights.
Make sure that the pallet assembly stem
positively engages the stem guide hole in the
hood or cover. Each pallet assembly must be
free to move upwards, with the pallet stem
travelling into the stem guide.
Teflon
®
is a mark owned by E.I. du Pont de Nemours and Co.
Enardo ES-850 and Enardo ES-950 Series
note
®
) spacer on top of the pallet
note
△
CAUTIOn
Use care when installing weights and
securing lids to avoid getting pinched.
6. Install the covers and/or hood.
7. Re-use existing wing nuts or nuts and tighten to secure
covers/hoods in position.
8. Attach the valve to the appropriate mating flange using
appropriate flange gasket which is compatible with
process conditions (customer provided). To ensure
proper function, install the valve to a level surface,
not greater than 1° off horizontal so the pallet will
move vertically. Valves that are tilted during usage
may suffer premature damage or wear, and may have
more leakage.
For proper bolt torquing of the valve connecting flange to the
piping, please refer to Tables 3 to 5.
Smart Wireless Monitoring
▲
WARnInG
Do not thread wireless sensor too far into
lid. Sensor may contact pallet stem and
prevent valve from opening properly. This
condition may result in equipment damage or
personal injury.
Units with Smart Wireless are shipped as self-contained
and already connected. The only connection required is
installation of the transmitter battery (shipped separately)
which is intrinsically safe and does not require a
hot-work permit.
1. Install valves with the Smart Wireless monitoring option
in a similar manner to the standard PVRVs with a few
differences. Remove any cardboard or other packaging
from the inner chambers. Remove the lid(s) and/
or hood to allow insertion of the appropriate weights
during installation.
2. Remove any lid with the sensing equipment threaded
into it as a single unit. The sensor should remain
engaged with the lid during this process. Position all
sensors within 0.100 in. of the pallet stem. Maintain
this critical distance. If the sensor location within a lid is
altered, re-test the unit to ensure proper functioning of
the sensor and transmitter. If this is the case, re-apply
thread sealant to mitigate any leakage of the sensor/
lid interface.
9
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