Configuration Options

Description
t2b ethercat exhaust throttle valve with integrated controller T2BA Exhaust Throttle Valve, Series T2B

Specifications

  • Type
    T2BA Exhaust Throttle Valve
  • Accuracy
    0.25% of set point, or 5mV (whichever is greater)
  • Control Range
    0.0001%-100% Full Scale (with Dual Transducer Input)
  • Flapper Types
    Non-sealing and low-conductance soft-sealing
  • Operating Temperature
    Motor and Electronics: 15 - 50°C
    Valve Body: 105°C standard, 150 & 200°C optional
    Storage Temperature: -20 - 80°C
  • Exposed Materials
    Non-sealing Types: 316 SST, Tefzel
    Low closed-conductance soft-sealing Types: 316 SST, Tefzel, PTFE
    Shaft Seal Material: Viton, Kalrez®, Chemraz®, and others
  • Shaft Seal Material
    Viton shaft seals are available for valve body temperatures that will not exceed 105°C and process gases compatible with Viton. For valve body heating as high as 150°C and/or process gas compatibility, various Kalrez and Chemraz compounds are also offered.
  • External Leak Rate
    1 e-9 atm cc/sec
  • Power Requirements
    24 VDC @ <100 W max.
    4A supply capacity recommended
  • Valve Bore and Flange Size
    KF40, KF50, NW63, NW80 and NW100
    Additional sizes available
  • Pressure Sensor Power
    EtherCAT pressure sensors exchange data to the master and the data is available (typically ~ 1 ms refresh) as standard PDO data to the T2BA
    Communication interfaces other than EtherCAT support up to 2 analog capacitance manometers.
    An optional integrated power supply can supply up to 650 mA of ±15 VDC of power for one or two manometers.
  • Nominal Radial Gap
    Standard clearances are appropriate for most applications.
    Consult MKS for applications with high internal heating.
  • Heatability
    All T2BA valves allow the valve body to be heated to 105°C standard or optionally 150°C or 200°C.
    T2BA valve bodies may be heated up to 200°C with the heatability option and appropriate selection of shaft seal compound.
  • Drive
    8 in-lb Direct Drive
    25 in-lb Direct Drive
    40 in-lb High Torque
  • Communications
    EtherCAT ETG. 5003.1 Common Device Profile; ETG.5003.2030 Process Control Valve
    RS232 full duplex; RS485 half duplex
  • Pressure Input
    EtherCAT pressure sensors exchange data to the master and the data is available (typically ~ 1 ms refresh) as standard PDO data to the T2BA
    Communication interfaces other than EtherCAT support up to two analog capacitance manometers.
    An optional integrated power supply can supply up to 650mA of ±15 VDC of power for one or two manometers.
  • Compliance
    EtherCAT: CE

Features

High-speed Stepper Motor

The T2BA utilizes a direct drive high-speed stepper motor. The valve driver provides high resolution pressure control. The optional, high torque direct drive motor provides extended uptime and reduces preventative maintenance cycles — a great advantage in demanding processes where just one hour of downtime can cost thousands of dollars. The T2BA is also available in geared versions, providing maximum torque and enabling long-term operation in harsh environments.

T2BA Pressure Control System

T2BA Exhaust Throttle Valves can operate in two modes: flapper positioning or pressure control, either of which can be user-activated through the I/O interface. All of the adjustable setup parameters, run time operation, and diagnostics information is available through the communications interface. EtherCAT T2BA is only compatible with EtherCAT manometers.

The downstream pressure control technique provides wide dynamic range, works with all types of pumps, provides fast response, and is tolerant to most effluent gases. The "intelligent instrument" concept results in valuable system space savings, improved noise immunity, and easy access to time-critical process and calibration information as well as on-board diagnostic functions.

EtherCAT® Pressure Control System

Heater, hardware and full integrated foreline solutions are available.

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