Samson 3321CT, Mounting And Operating Instructions

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Contents
EB 8115 EN
9.2 Preparing the valve for service work ............................................................. 9-3
9.3 Installing the valve after service work ............................................................ 9-3
9.4 Service work ............................................................................................... 9-3
9.4.1 Replacing the gasket ................................................................................... 9-5
9.4.2 Replacing the packing ................................................................................. 9-5
9.4.3 Replacing the seat and plug ......................................................................... 9-7
9.5 Ordering spare parts and operating supplies ................................................ 9-9
10 Decommissioning .....................................................................................10-1
11 Removal ..................................................................................................11-1
11.1 Removing the valve from the pipeline .......................................................... 11-1
12 Repairs .................................................................................................... 12-1
12.1 Returning devices to SAMSON .................................................................. 12-1
13 Disposal ................................................................................................... 13-1
14 Certificates ...............................................................................................14-1
15 Annex ......................................................................................................15-1
15.1 Tightening torques ..................................................................................... 15-1
15.1.1 Tightening torques to install the seat ........................................................... 15-1
15.1.2 Tightening torques for connection of body and bonnet ................................. 15-1
15.1.3 Tightening torques for connection of plug stem and actuator stems ................ 15-2
15.1.4 Tightening torques for connection of bonnet and Type 3379 Actuator ............ 15-2
15.2 Lubricants ................................................................................................. 15-3
15.2.1 Recommended lubricant ............................................................................ 15-3
15.2.2 Lubricant sorted by parts ........................................................................... 15-3
15.3 Tools ........................................................................................................ 15-4
15.3.1 Seat wrenches .......................................................................................... 15-4
15.3.2 Plug stem tool ........................................................................................... 15-5
15.3.3 Packing extractor ...................................................................................... 15-5
15.4 Spare parts .............................................................................................. 15-6
15.5 After-sales service ..................................................................................... 15-8