Information

Safety requirements
2 Cylinders
● The displacement range of the cylinders, pistons
and all the other associated actuations must be
safeguarded against to protect and equipment.
(Recommended guidelines VDI 2853 or DIN 31001)
2.1 Single acting cylinders with spring return
● Dismantling of the cylinders should be carried out
with the utmost care as the cylinder is pre-stressed
by means of the mechanical spring.
2.2 Bellow cylinders
● Pneumatic bellow cylinders must not be used out-
side specified operating parameters.
● To avoid overstretching or excessive movement of
the belows, external stops must be provided.
● A contact-free stroke movement of the bellows with
respect to neighbouring components is essential.
● The pneumatic bellow cylinders must not be sup-
plied with compressed air if the edge of the bellows
is not completely encapsulated by the end-plates.
● If only two of the four fastening bolts are used, the
end-plates must be additionally supported.
2.3 Impact cylinders
● Due to the high kinetic energy content in the impact
cylinder, precautionary measures must be taken.
● Impact cylinders may only be operated when
adequately safeguarded.
3 Air valves
● Air valves can have an undefined switching position
when switching on equipment.Therefore it is possi-
ble that the equipment makes an uncontrolled sud-
den movement. Care should therefore be taken
when switching on equipment.
3.1 5/3 wax valves and non-return valves
● When using 5/3-way valves with closed centre
position or not-return valves in pneumatic control
systems and plants it is to be noted that certain
areas of such systems and plants may remain
under pressure after they have been shut off and
vented. The utmost care should therefore be
exercised when carrying out repair work.
● The areas of the system which remain under
pressure after being shut off and vented are to be
provided with special markings (e.g.“pressure line“)
in circuit diagrams. It is also highly advisable to
provide these circuit diagrams with a special text,
e.g.: “WARNING! Due care is to be exercised during
repair work to areas marked “pressure line“ in this
system.“
4Air line equipment
● When designing and installing the airfilter
appliances make sure that filters are always
installed before regulators and lubricators.
● The lubricators of the Olympian series are not
suitable for use in “Mistcool“ mist coolant systems
or lubricating systems for machines (bearings,
gears etc.). They are neither suitable as mist
lubricatiors on the output side, nor for operation at
full power in reversed flow direction.
● A list of recommended lubricants is available. For
certain applications it is, however, more advisable to
use only those lubricants which the paricular
manufacturer produces and specifies for the
machines, equipment etc.. Lubricants containing
soap or bulk adding agents are not recommended.
● Do not use non-inflammable phosphate-ester-based
compressor oils as this causes damage to O-rings,
seals and other parts of the Norgren equipment and
pneumatics installations.
● Clean the plastic containers of the filters, filter
regulators and lubricators with soapy water only. On
no account should solvents be used as these destroy
the containers.
● Filters designed for manual drainage must be
drained regulary, before the fluid reaches the
membrane.
To remove the filter element, shut off the compressed
air supply (decrease the pressure level in the
device - not necessary when a drainage shut-off
valve is installed).
● Shut off the compressed air supply prior to reple-
nishing the oil of a micro-mist oiler. It is advisable to
install a vent valve up-line of the filter, to enable
venting prior to replenishing the oil.
5/01
1.1.1.-2
Our policy is one of continued research and development. We therefore reserve the right
to amend, without notice, the specifications given in this document.