PTI ARV 2000 Installation And Operation Manual

Installation and Operation Manual
ARV 2000
Section 1: Installation Information, Checklist & General
Descriptions
1.1 Installation Information
Important
The ARV 2000 uses single-stage regulation to control pressure in non-critical processes. The valve
compensates for house exhaust fluctuations, reduces potential for contamination, and provides quick
response, as well as being low maintenance and self-cleaning. The ARV 2000 has been manufactured
to provide pressure control in the range of 0-498.2 Pascal's (50.8 mm H O). The total ARV 2000 system
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is comprised of the tool Interface module (TIM-100 FSP) controller, the ARV 2000 valve, and
associated interface cables. The TIM-100 FSP controls a stepper-motor driven throttling-type valve,
which regulates the pressure drop across the valve, resulting in tighter controls of airflow and pressure
at the valve input (i.e., process) pressure.
ARV
Process
Exhaust
Clean room
2000
Air Flow Through The Process And Control System
Comparison with Traditional Butterfly Valves and Double-Acting Gate Valves
The ARV 2000 differs from traditional valves in several ways. The most important feature is its linearity,
which derives from the vane configuration. As a butterfly valve or gate valve reaches its nearly closed
position, small rotational increments create large differences in the open area through the valve
resulting in large changes in the flow through the valve. As the valve opens, the flow changes less and
less with each rotational step. The ARV 2000, on the other hand, closes off the same amount of area
with each step, so the flow is reduced by the same amount at each step.
The non-linearity of the traditional valve prevents it from controlling well at the maximum and minimum
of its range. The ARV 2000, on the other hand, controls well throughout its range.
The second major difference between a butterfly valve and an ARV 2000 is Fast Set Point control
technology that creates a rapid response to set point not achievable with conventional PID control.
System compatibility
The ARV 2000 system electronics provide significant flexibility. Since the same electronics, with
minimal configuration changes entered from the keypad, can be used to control Progressive
Technologies' automated VRV and automated SENTRY products, the pressure control technology can
be upgraded at any time with minimal effort and expense.
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