40mm Stainless Steel Pressure Gauge Liquid Filled

Product Introduction

Featuring a compact 40mm dial size and a glycerin-filled construction, this pressure gauge is suitable for hydraulic systems, pneumatic equipment, compressors and general industrial machinery. The liquid filling helps dampen pointer oscillation caused by vibration and pressure fluctuations, contributing to improved readability and smoother operation in demanding environments.

Key Features

• 40mm (1.5 inch) compact dial size
• stainless steel case construction
• Glycerin-filled vibration-resistant design
• Bourdon tube measuring mechanism
• Mechanical operation without power supply
• Dual scale options available (Bar / PSI)
• Suitable for liquid and gaseous media compatible with copper alloy components
• Bottom mount and back mount configurations available
• Designed according to EN 837-1 principles

Technical Specifications

Applications

• Hydraulic power units and hydraulic machinery
• Pneumatic systems and compressed air equipment
• Air compressors and pressure vessels
• Water treatment and filtration equipment
• HVAC systems and process control installations
• OEM industrial machinery and automation equipment

Product Advantages

1. Improved Stability Under Vibration

The glycerin-filled construction helps dampen pointer movement caused by vibration and pressure pulsation, supporting clearer readings during operation. Liquid-filled gauges are commonly selected for dynamic industrial environments. 

2. Corrosion-Resistant Exterior Design

The 304 stainless steel case provides enhanced protection against challenging industrial environments while maintaining an attractive appearance.

3. Compact Size for Flexible Installation

The 40mm dial size allows integration into equipment with limited installation space without sacrificing essential monitoring capability.

How to Select a Liquid Filled Pressure Gauge

• Determine the required pressure range for the application.
• Select the appropriate mounting configuration.
• Verify thread compatibility with the equipment connection.
• Choose liquid-filled designs for environments with vibration or pulsating pressure.
• Evaluate environmental conditions and media compatibility requirements.

FAQ

Why use a liquid filled pressure gauge?

Liquid filling helps reduce pointer flutter caused by vibration and pressure pulsation, improving readability and reducing internal wear.

What filling liquids are available?

Glycerin is commonly used for general industrial applications, while silicone oil may be selected for specific temperature requirements.

Can this gauge be used in hydraulic systems?

Yes. Liquid-filled pressure gauges are widely used in hydraulic applications where vibration resistance is beneficial.