Industrial Pressure Gauges

A20P or A25P Series Mechanical Industrial Pressure Gauges

The A20P and A25P Series Mechanical Industrial Pressure Gauges are robust instruments designed for precise pressure measurement in challenging industrial environments. These gauges are known for their durability and accuracy, making them ideal for use in applications involving hydraulics, pneumatics, and gas systems. With a clear, easy-to-read dial and a mechanical design that eliminates the need for external power, these gauges provide reliable performance. Their sturdy construction ensures long-lasting use, making the A20P and A25P series a trusted choice for maintaining operational safety and efficiency.

The A20P and A25P Series Mechanical Industrial Pressure Gauges are designed to deliver reliable and accurate pressure readings in industrial applications. Below is an overview of these gauges:

A20P or A25P Series Mechanical Industrial Pressure Gauges

These pressure-indicating gauges feature built-in electrical switches for activating alarms and/or shutting down equipment.

Corrosion resistant polycarbonate case
Internal pulsation dampener helps eliminate pointer flutter
Maintains accuracy and protection from moderate overpressure

The A20 Series (2 in./51 mm dial) and the A25 Series (2-1/2 in. /64 mm dial) Swichgage instruments are diaphragm-actuated, pressure-indicating gauges with built-in electrical switches for tripping alarms and/or shutdown devices.
Ranges are available from 0-30 psi (207 kPa) [2.0 bar] through 0-300 psi (2.1 MPa) [20 bar].
These rugged instruments are face sealed from the environment by the unique combination of a polycarbonate case and lens, a polished stainless steel bezel and O-ring seals. These gauges are sealed from the external environment. Accuracy and protection from moderate overpressure are assured by a unique, unitized diaphragm chamber. A built-in pulsation dampener helps eliminate pointer flutter and is removable for cleaning.
For series A25P, the gauge pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contacts have self-cleaning motion to ensure electrical continuity.
Model A20PE has internal snap-acting SPDT switches for three wire control and can be wired to make or to break a circuit.
Gauge only models without switches are also available.
A20/A25 Series applications include engines/equipment in oil field for lube oil pressure, water pump pressure, hydraulic pressure, air pressure, etc.

Base Models

A25P Series Swichgage

The gauge pointer makes with an adjustable contact to complete a pilot duty circuit.

A20PE Swichgage

A20PE (was A20EO). Features internal snap-acting SPDT switches, instead of the single pole/pointer contacts. When the switch closes on falling pressure, it becomes set, as pressure rises the switch resets (refer to wiring diagram).

Key Features

1. Durable Construction:

Built with robust materials to withstand demanding industrial environments.

Designed to handle various pressures reliably.

2. Pressure Ranges:

Typically covers a wide range of pressure measurements, suitable for both low and high-pressure applications.

3. Dial Sizes:

The A20P series generally features smaller dials, making it suitable for installations where space is limited.

The A25P series offers larger dials for better readability, ideal for applications requiring distant visibility.

4. Accuracy:

These gauges maintain a high level of accuracy, essential for ensuring operational efficiency and safety.

5. Applications:

Commonly used in manufacturing, hydraulics, pneumatics, and other industrial sectors.

Suitable for measuring gases and liquids that are not highly viscous or prone to crystallization.

6. Customization Options:

May include various mounting styles (e.g., panel, surface, or pipe).

Availability of additional features like liquid filling for dampening vibrations.

Advantages:

Cost-effective and simple to operate

Requires no external power source.

Low maintenance, with long operational life.