Dresser Surepowr Sure 150 Installationshandbuch - Seite 14
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correct specified torque. Failure to maintain specified
screw torque may compromise the enclosure protection
rating.
The explosion-proof joint may be lubricated with an
appropriate, non-corrosive, non-hardening grease,
such as Vaseline.
Seals and Cable Glands
Elastomer-based seals may degrade as they age; the seals
must be checked regularly and replaced as needed. When
replacing seals, be sure the sealing surfaces are clean.
O-rings should be checked regularly to ensure they
are in good condition and placed correctly, and that
the sealing faces are clean. You may apply a thin
film of non-acidic grease, such as Vaseline, to the
sealing faces.
Cable glands should be checked regularly to ensure they
are tightening according to specifications, to prevent
ingress of water or dirt. Routinely check that cable glands
are tightened to the manufacturer's specified torque to
ensure the required enclosure protection.
14
WARNING
EXPLOSION HAZARD
Death or serious injury
could result.
Maintain cover screw torque
specifications to ensure enclosure
protection.
WARNING
EXPLOSION HAZARD
Death or serious injury
could result.
Maintain cable gland torque
specifications to ensure enclosure
protection.
8. Storage
The Surepowr actuator must be stored in a clean, dry,
temperature-controlled building that is protected from
the weather. Precautions should be taken to prevent
condensation inside or outside the actuator. If there is
insufficient external temperature and humidity control,
the internal heaters must be energized to protect the
unit against condensation from extreme temperature
variations. The actuators should be stored off the floor on
suitable pallets and must be covered with an unsealed
dust protector allowing side and bottom ventilation.
Conduit entries must be sealed with the shipping plugs
provided or other suitable means. The control cover
should be installed.