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3.1 Methods of operation
Method 1: Set it and Forget it
To pressurize, connect your pressurized gas source to the top of the BPR. Open the valve by
turning the small valve counterclockwise with a small screwdriver and then set the gas pressure
from its source. After compressing the air in the gas chamber of the device, manually close the
valve on top of the device using a small flat screwdriver (to seal the valve
only tighten to finger
tightness
, otherwise the valve may be damaged or broken by excessive torque). The device is
now sealed, and the pressure stays in the device. The user can now disconnect the BPR from the
pressure source (e.g., gas tank). If another set point is required, this procedure can be repeated
by setting the pressure of the top chamber to the new value. The advantage is that a gas tank is
not required for operation. The BPR should be repressurized every 48 hours for consistent
results.
Method 2: Dynamic Set Point
Some processes require the fluid pressure to dynamically change over the course of operation.
The Zaiput BPR can provide a continuous pressure setting as well. To achieve this, the user
connects the Zaiput BPR to the gas/pressure source by leaving the valve open. By changing the
pressure of the gas source (e.g., the regulator of the gas tank), the set point, P, is dynamically
changed.
Figure 3: Set it and Forget it
Figure 4: Dynamic Set Point
Figure 5: Pressure Relief Mode
Method 3: Pressure Relief Valve
Zaiput’s BPRs can also be used for static pressure
control. They will maintain an “at least” pressure
which allows them to act as a pressure relief valve. If
the pressure in the reactor or system surpasses the set
value of the BPR it will allow flow through the device
until the pressure is below the set point of the BPR.
