Samson BR 14t - LTR 43, Монтаж и эксплуатация

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8-1
EB | 14t_EN
June 2023 edition
Subject to technical changes
Malfunction
8 Malfunction
When rectifying the faults, chapter “1 Safety instructions and safety measures” must be observed.
8.1 Detecting and rectifying errors
Type of fault Cause Measure Note
Leaks in the passage Wedge-lock-washer not in the
closed position Check the end stops on the actuator and/
or gear (sealing paint undamaged)
Contact PFEIFFER for further measures Note 1: Check the position marking on
the shaft, see Chapter 3.
Note 2: Check the position display on the
actuator
Note 3: Rinse the butter
fl y valve and
pipes
Seat/seal ring damaged Replace the seat/seal ring Contact PFEIFFER with regard to a repair
kit
Leaks in the fl ange seal Seal damaged Replace the seal Use a suitable seal, see Chapter 4.4
Insuf fi cient surface pressure
on the seal
Tighten the fl ange screws Observe the maximum permissible
tightening torques
Flange sealing surface
damaged Rework the fl ange sealing surface Coordinate rework with PFEIFFER
Leaks in the shaft sealing
(packing) Packing worn Tighten the stuf fi ng box nuts Observe the max. permissible tightening
torques, see Chapter 15.2
Packing insuf fi ciently
preloaded
Tighten the stuf fi ng box nuts Observe the max. permissible tightening
torques, see Chapter 15.2
Packing defective Replace the packing See chapter 9.3.3
Leaks in the body cover Seal insuf fi ciently preloaded Retighten the bonnet screws. Observe the max. permissible tightening
torques, see Chapter 15.2
Seal defective Replace the seal. See chapter 9.3.3
Dif fi culty of actuator shaft
movement
Packing improperly preloaded Release and and realign the gland Depressurise the butter fl y valve, see
Chapter 10
Insuf fi cient tightening torque Check the pneumatic energy.
Actuator insuf fi ciently
supported
Use construction measures to support the
weight of the actuator
Dirt in the bearing area Contact PFEIFFER
Actuator functionality limited Actuator or control faulty Contact PFEIFFER.
In the case of faults that are not listed in the table, contact the After Sales Service at PFEIFFER.
8.2 Carrying out emergency measures
The system operator is responsible for emergency measures. In
the case of an valve fault, observe the measures in Chapter 8.1.
In case of an valve fault:
Ö
Close off the pipe upstream and downstream of the actuator
so that no medium
fl ows through the valve.
Ö
Troubleshoot the error, see chapter 8.1.
Ö
Rectify the fault that can be fi xed as indicated in the instruc-
tions provided in this installation and operating manual.
Contact PFEIFFER for additional errors.
Recommissioning after faults
See chapter 6