D6X Differential Air Shaft
www.maxcessintl.com
D6X Differential Air Shaft
270044468 1
Page 7
Pressure Control Valve System
Successful operation of the Tidland Differential Shaft series depends upon proper internal air
pressure
Variable pressure is required in order to control the air pressure on the tension segments as the
roll diameter increases. As the roll diameter grows, the required rate of pressure increase will
diminish due to the weight of the roll and friction between the roll and shaft. These parameters
will vary based on your application.
For low-tension winding applications, each of the Differential Shaft models can be equipped with
a pressure control system comprising two bleeder valves. Used with your applied air pressure,
these valves allow the operator to adjust and maintain internal air pressure where the required
internal pressure is very low and the pressure range is very small.
How it Works
As operating air pressure is applied to the shaft, the factory-set inlet valve causes a drop in
pressure as air enters the bladder. The exhaust bleeder valve controls the amount of that
pressure drop. The larger the exhaust opening, the greater the pressure drop, resulting in lower
internal bladder pressure. Reducing the exhaust opening increases the internal air pressure.
If you are unable to achieve optimal tension control by adjusting your applied air pressure, use
the exhaust bleeder valve to improve the resolution of your tension controller.
Before beginning the winding operation,
please read and understand the
following.
NOTICE
CAUSES A PRESSURE DROP;
SHOULD NOT REQUIRE ADJUSTMENT
AFFECTS THE INTERNAL AIR PRESSURE;
CONTROL THE PRESSURE DROP BY
ADJUSTING THE OUTLET (EXHAUST
BLEEDER VALVE
AFFECTS THE INTERNAL AIR PRESSURE;
CONTROL THE PRESSURE DROP BY
ADJUSTING THE OUTLET (EXHAUST
BLEEDER VALVE
