Expansion vessels for heating systems, domestic hot water and Pressure tanks
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Technical Support | Nuts tightening specifications |
Nuts tightening specifications

 COMPONENT 

MODELS  

TORQUE COUPLE
 AND TOLERANCE (Nm) 

 VALVE NUT  ALL               3   1
 SCREW M6  INTERVAREM-SOLARVAREM 5-8-12 L  
 PLUSVAREM 8 L
              5   -0 +2
              6   -0 +2
 SCREW M8  ALL from 19 to 100 L (NO Plusvarem)
 PLUSVAREM from 19 to 100 L
            12   -0 +2
            14   -0 +2
 SCREW M12  ALL from 150 to 400 L (NO Plusvarem)              22   -0 +2
 NUT M12  ALL from 500 to 2000 L
 PLUSVAREM 200-300 L
            30   -0 +2
 NUT 1/2" TOP FLANGE  Top flange models 100-200 L              40   -0 +2
 NUT 1/2" TOP FLANGE    Top flange models 500-2000 L              45   -0 +2


Hand tightening must be done every other nut.
Nuts must be tightened with a calibrated torque wrench.



Limena
Via del Santo, 207 - 35010
Limena Padova Italy
Tel.+39 049 8840322
Fax +39 049 8841399

Via Sabbioni, 2 - 35024
Bovolenta Padova Italy
45 16 02.49 N, 11 55 51.49 E

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