Operating Manual / en
eMG
page 7 / 26
Rev. 2
05/02/2020
Storage, "mothballing" (long term storage)
The following recommendations apply to all mechanical seals which have been
supplied and stored in their
undamaged original packaging
, as well as to seals
which have been installed in a machine (e.g. pump, compressor, agitator, etc.) but
have not yet been put into operation.
Mechanical seals and spare parts are super finished and repeatedly tested machine
elements. For storage special conditions have to be followed.
Sliding materials and secondary sealing elements are subject to material-specific and
time-based alterations (distortion, ageing) which might reduce the full efficiency of the
mechanical seals. Hence, this may be avoided by observing the storage instructions.
For the stock keeping of elastomers, special conditions are required. For all rubber-
elastic parts the rules of DIN 7716 resp. of ISO 2230-1973 (E) are valid.
Optimum conditions for storing of mechanical seals
dust free
moderately ventilated
constant temperature
relative air humidity below 65 %,
temperature between 15 °C and 25 °C.
Protect
the mechanical seal from
direct exposure to heat (sun, heating)
ultraviolet light
(halogen or fluorescent lamps, sunlight, arc welding)
presence or development of
ozone
(arc welding, mercury vapour lamps, high-
voltage devices, electric motors)
risk of embrittlement
of elastomeric materials
It must be recognised that a difference exists between:
M.S. stored
in the stock room
M.S. installed
in the machine, but not yet in operation.
