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If the seal or the seal plate on the safety valve of the controller on the upper part of
the valve has been removed then correct operation is no longer guaranteed.
The safety valve is to be exchanged!
6.
Storage
When stored and handled properly, the properties of rubber products remain nearly
constant for a long period of time. However when handled improperly and under
unfavourable storage conditions, their physical properties and/or service life are
shortened!
Please comply with the following storage conditions:
Store in a place that is cool, dry, dust-free and moderately ventilated.
The storage temperature should be approx. 15 °C; never let it exceed 25 °C.
The temperature should also not fall below -10 °C.
If there are heating appliances and heating conductors in the storage room, they must be appropriately insulated
so that the temperature of 25 °C is not exceeded. Maintain a minimum clearance between the heating appliances
and the stored goods of 1 m.
Do not store rubber products in moist storage rooms. The relative humidity should be less than 65 %.
Protect the rubber products from light (direct exposure to sunlight, artificial light with high proportion of UV).
The windows in the storage room need to be correspondingly darkened.
Make sure that the storage room does not contain any appliances that cause ozone.
The storage room must be free of solvents, fuels, lubricants, chemicals, acids, etc.
Store rubber products without pressure, tensile stress or similar distortions since that can promote deformations
or crack development.
Some metals such as copper and manganese can also have a damaging effect on rubber products.
For more information please refer to DIN 7716.
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