A Bourdon tube pressure gauge with switch contact is a mechanical device used to measure and monitor pressure in industrial systems.
It operates based on the deformation of a curved Bourdon tube when internal pressure is applied.
As pressure increases, the tube tends to straighten, causing movement that is mechanically linked to a pointer.
This pointer indicates the pressure value on a calibrated dial.
In addition to measurement, the device includes electrical switch contacts for control purposes.
These contacts can be set to activate or deactivate at specific pressure limits.
The switching mechanism allows automation of processes such as alarms or shutdown systems.
It is commonly used in applications like compressors, boilers, and hydraulic systems.
The gauge is known for its robustness and reliability in harsh environments.
Switch contacts can be adjustable, enabling customization for different pressure thresholds.
The device may support single or multiple switching points depending on design.
It requires minimal maintenance due to its simple mechanical construction.
Electrical contacts are often designed to handle specific voltage and current ratings.
The combination of measurement and control in one unit improves system efficiency.
Overall, it is a cost-effective solution for pressure monitoring and safety control.A Bourdon tube pressure gauge with switch contacts (e.g., WIKA PGS21, PGS23) combines analog pressure measurement with electric switches to monitor and control industrial processes. These devices, based on EN 837-1 or DIN 16085 standards, feature a stainless steel case, copper alloy or stainless steel wetted parts, and provide switch signals (magnetic, reed, or inductive) for controlling circuits when set points are met.
Series PGT23
Gauge Type Glycerin Filled
Pressure Range 0 to 300 bar(0 to 4000 psi)
Use Process Industries
Dial Size 6 inch / 150 mm
Display Type Analog
Wetted Material SS316
Pressure Type Gauge Pressure
Connection Size 1/2 inch
Connection Type BSP
Dial Sizes: Typically 100mm or 160mm (4-6 inches).
Accuracy: Class 1.6 or 2.5
