EB 8091-1 EN 21Measures for preparation4.3 StorageRisk of valve damage due to improper stor-age.− Observe storage instructions.− Avoid long storage times.− Contact SAMSON in case of different stor-age conditions or long storage periods.We recommend regularly checking the con-trol valve and the prevailing storage condi-tions during long storage periods.Storage instructions− Protect the control valve against externalinfluences (e.g. impact).− Do not damage the corrosion protection(paint, surface coatings). Repair anydamage immediately.− Protect the control valve against moistureand dirt. Store it at a relative humidity ofless than 75 %. In damp spaces, preventcondensation. If necessary, use a dryingagent or heating.− Make sure that the ambient air is free ofacids or other corrosive media.− The permissible storage temperature ofstandard control valves is –4 to +149 °F(–20 to +65 °C).Contact SAMSON's After-sales Service de-partment for the storage temperatures of oth-er valve versions.− Do not place any objects on the controlvalve.Special storage instructions for elastomersElastomer, e.g. actuator diaphragm− To keep elastomers in shape and to pre-vent cracking, do not bend them or hangthem up.− We recommend a storage temperature of59 °F (15 °C) for elastomers.− Store elastomers away from lubricants,chemicals, solutions, and fuels.SAMSON's After-sales Service departmentcan provide more detailed storage instruc-tions on request.4.4 Preparation for installationProceed as follows:Î Flush the pipelines.The plant operator is responsible for clean-ing the pipelines in the plant.Î Check the valve to make sure it is clean.Î Check the valve for damage.NOTICE!NoteInformationTipNote