100mm Electric Contact Pressure Gauge 9 Bar Silicone Filled

Product Introduction

Featuring a 316 stainless steel Bourdon tube and silicone oil filling, this pressure gauge is suitable for operating environments involving vibration and pressure pulsation. The electrical contact mechanism allows circuits to open or close at preset pressure values, making the gauge an effective solution for compressors, pumps, hydraulic systems and PLC-controlled equipment. Liquid-filled versions help reduce the influence of vibration on pointer movement and contact performance. 

Key Features

• 100 mm (4 inch) dial size
• Pressure range: 9 Bar (customizable)
• 316 SS Bourdon tube and wetted parts
• Silicone oil filled construction
• Electrical switching and alarm function
• Class 1.0 measurement accuracy
• Suitable for PLC monitoring systems
• Mechanical indication with electrical output

Technical Specifications

Applications

• Air compressor pressure monitoring systems
• Pump control and alarm applications
• Hydraulic equipment operating under vibration
• Pneumatic systems requiring switching functions
• PLC and industrial automation systems
• General industrial process control applications

Product Advantages

1. Integrated Monitoring and Control

Combines mechanical pressure indication with electrical switching functionality within a single instrument.

2. Silicone Oil Filled Design

The silicone filling helps reduce the effects of vibration and pulsating pressure, contributing to smoother pointer movement and more stable contact operation.

3. Corrosion Resistant Wetted Parts

316 stainless steel pressure elements provide compatibility with a broad range of industrial media.

4. Reliable Switching Performance

Adjustable electrical contacts support pressure alarm and circuit control functions required in industrial systems.

Working Principle

As pressure enters the Bourdon tube, the tube deforms elastically and drives the pointer across the dial for visual indication. Simultaneously, the pointer actuates preset electrical contacts when reaching designated pressure values, enabling alarm activation or automatic control of connected equipment.

How to Select an Electric Contact Pressure Gauge

• Select a pressure range suitable for the operating system.
• Confirm whether vibration resistance is required and specify silicone filling if necessary.
• Determine the required contact configuration for alarm or switching functions.
• Verify compatibility with PLC or relay control systems.

FAQ

What is an electric contact pressure gauge?

It is a mechanical pressure gauge equipped with adjustable electrical contacts used for monitoring and switching applications.

Why is silicone oil filling used?

Silicone oil reduces the influence of vibration and pressure pulsation on pointer indication and contact performance.

Can this gauge be integrated with PLC systems?

Yes. Electric contact pressure gauges are commonly used in PLC-controlled monitoring and automation systems.