removing and maintaining the product, and
that it is correctly supported in its final oper-
ating location.
2.10 Due to the variety of duties on which this
product can be employed, it is the end users
responsibility to ensure the compatibility of the
product with the specific application (i.e. air
supply, torque, corrosion, which may effect it's
suitability).
2.11 Before equipment is installed in areas which
may be subject to seismic activity or extreme
climatic conditions consult Flowserve Flow
Control Technical Sales.
2.12 If the processes or environments that the prod-
ucts are used in are likely to cause temperatures
(high or low) that may cause injury to personnel
if touched, then adequate insulation/protection
must be fitted.
2.13 If the equipment is to be used on unstable gas
duty, ensure that the operational parameters
as indicated on the product label cannot be
exceeded.
2.14 This equipment should be protected by other
devices to prevent over-pressurisation. (i.e.
caused by external fire etc).
2.15 This equipment must be installed in a system
that is designed to prevent excessive forces
acting on the mounting kit, switch box/posi-
tioner, connections etc.
2.16 Care must be taken when removing the actu-
ator or accessing the valve that the actuator
does not unex- pectedly operate due to the
stored failsafe spring torque, causing personal
injury.
2.17 This equipment is not a safety device and must
be controlled / guarded by other devices.
2.18 Do not rub actuator with a dry cloth as this can
cause a build up of static charge. Only clean
with a damp cloth.
3 DESCRIPTION
NORBRO Series 40R actuators are pneumatic
quarter-turn valve actuators. The design utilizes
a double-rack, single pinion concept, with each
rack integrally cast to a piston. On sizes 10-50,
both pistons are supported and centered by
large, stainless steel guide rods that are also
used to control the rotation of actuator via
externally mounted stroke adjustment screws.
In double-acting units, both pistons are pres-
surized on both strokes of the actuator.
Standard units feature an extended top shaft for
manual override capabilities and a completely
modular design which allows simple attach-
ment of a variety of accessories. All units allow
the direct mounting a solenoid control block
which properly directs supply air to the actu-
ator.
WARNING:
Series 40R actuators are electro-me-
chanical devices subject to normal wear and
tear. Actuator life is dependent upon applica-
tion and environmental conditions. If applied
in hazardous services such as, but not limited
to, media temperature extremes, toxins, flam-
mables, or other services where improper or
incomplete operation could produce a safety
hazard, it is incumbent upon the system
designer and the user to provide proper
warning devices such as temperature sensors,
oxygen sensors and flow sensors. Flowserve
also recommends that the optional auxiliary
limit switches be used for monitoring and/or
electrical interlock.
CAUTION: When actuator is installed in outdoor
conditions, water can enter the exhaust holes
of the double-acting solenoid block, and then
freeze. Flowserve suggests a cover be used,
or mount the actuator such that the solenoid
block is upside down.
Do not install spring-return models with air
connection in end cap or with integral sole-
noid vertical, without proper precautions to
eliminate the ingress of water spray or rainfall.
Exposed end cap or solenoid vent port will
allow water to accumulate in spring chambers.
Flowserve recommends that all products which
must be stored prior to installation be stored
indoors, in an environment suitable for human
occupancy. Do not store product in areas where
exposure to relative humidity above 85%, acid
or alkali fumes, radiation above normal
back-
ground, ultraviolet light, or temperatures
above 50 °C
or below 4 °C may occur. Do not
store within 50 feet of any source of ozone.
To Next Page
Loading...
Need help?
General
