Samson 3351 - Malfunctions; 8.1 Troubleshooting; 8.2 Emergency action; Servicing

Contents
EB 8039 EN
8 Malfunctions ..............................................................................................8-1
8.1 Troubleshooting ..........................................................................................8-1
8.2 Emergency action .......................................................................................8-2
9 Servicing....................................................................................................9-1
9.1 Periodic testing ...........................................................................................9-3
9.2 Preparing the valve for service work .............................................................9-4
9.3 Installing the valve after service work ............................................................9-4
9.4 Service work...............................................................................................9-4
9.4.1 Disassembly(DN15to80/NPS½to3) .......................................................9-6
9.4.2 Assembly(DN15to80/NPS½to3) ...........................................................9-7
9.4.3 Disassembly(DN100/NPS4) .....................................................................9-8
9.4.4 Assembly(DN100/NPS4) .........................................................................9-8
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
11.2 Relieving the spring compression in the actuator ..........................................11-2
12 Repairs ....................................................................................................12-1
12.1 Returning devices to SAMSON ..................................................................12-1
13 Disposal ...................................................................................................13-1
14 Certicates ...............................................................................................14-1
15 Annex......................................................................................................15-1
15.1 Tightening torques, lubricants and tools ......................................................15-1
15.2 Spare parts ..............................................................................................15-2
15.3 After-sales service .....................................................................................15-3
15.4 Information on the UK sales region .............................................................15-3