Page 124 - 诺霸英文2022
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VALVE TESTING



        VALVE TESTING & ACTUATION








                       B.T.O
        Degrees                     B.T.C  Torque

                              R.T

                          0°-90° Cycle

                               Time
          This diagram represents what we would expect to occur
           during a “break to open” to “break to close” cycle of a
            typical ball valve, with R.T. being the “run torque”.
















                                                                                                 Typical example of an
                                                                                                 engineered to order
                                                                                                Valve Testing System in
           Example of a pneumatically driven PTS-72-1000 Remote fitted with a                       application
              torque and angle transducer as part of a Valve Testing System
        VALVE TESTING SYSTEM
        Engineered to order Valve Testing System
        Typical applications include the testing of Ball Valves requiring
        cyclical rotation 0 - 90˚ / 90 - 0˚, whilst recording torque vs
        angle data. Testing of Gate Valves / Valve Actuators by opening
        & closing whilst recording torque vs angle / turns data. The
        test must be remotely controlled from outside of the test
        chamber, where the test valve is pressurised.
        •  10” touchscreen HMI & PLC housed in painted steel enclosure for
          indoor / workshop use
        •  Test data capture and output in CSV format onto external USB drive,
          time & date stamped
        •  Generate customer test reports and produce graphs
        •  Real time torque & angle or torque & turns data streaming via
          RS232 serial port
        •  Precision controlled low noise servo drive
        •  Operates Pneumatic (via solenoid valves), or servo drive tools
        •  Dedicated input ports for pressure, temperature and proximity
          sensors
        •  Controller available as separate component to upgrade existing
          valve testing kits
        •  Automatic recognition of Smart transducers
        •  Forward / reverse cycling - user programmable number of cycles,
          variable up to 32,000 sweeps
        •  Emergency stop button and torque overload limit function
        •  Utilises Norbar's tried and tested PneuTorque multiplier along with
          Torque and Angle Transducers - various capacities available
        •  Torque Range: 100 - 300,000 N·m (capacities up to 500,000 available
          on application)
        •  Powerful brushless motor is quiet and maintenance free


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