40mm Vacuum Pressure Gauge -1 Bar Plastic Center Back

Product Introduction

The 40mm vacuum pressure gauge is designed for monitoring negative pressure in vacuum systems and pneumatic applications requiring a compact and economical measurement solution. Utilizing a Bourdon tube measuring mechanism, the gauge provides direct mechanical indication without the need for an external power supply.

Featuring a measuring range of -1 to 0 Bar and a center back mount configuration, this vacuum gauge is suitable for vacuum pumps, packaging equipment, compressed air systems and laboratory devices. The lightweight plastic case construction offers a practical balance between durability and cost efficiency for general industrial vacuum applications. Similar 40mm vacuum gauges are commonly manufactured according to EN 837-1 design principles using Bourdon tube technology. 

Key Features

• Vacuum measuring range: -1 to 0 Bar
• Compact 40mm (1.5 inch) dial size
• Center back mount installation
• Plastic case construction
• Bourdon tube measuring mechanism
• Dry, non-filled design
• Dual scale display available
• Designed according to EN 837-1 principles
• Suitable for vacuum monitoring applications
• OEM customization support available

Technical Specifications

Applications

• Vacuum pump monitoring systems
• Pneumatic equipment operating under negative pressure
• Vacuum packaging machinery
• HVAC service and maintenance equipment
• Laboratory testing devices
• General industrial vacuum monitoring applications

Product Advantages

1. Compact Installation Design

The 40mm dial size allows installation in compact equipment and applications where panel space is limited.

2. Economical Vacuum Measurement Solution

The plastic case structure provides a cost-effective alternative for standard industrial vacuum applications.

3. Convenient Center Back Mounting

The rear connection configuration facilitates installation in machinery panels and enclosed equipment housings.

Working Principle

When negative pressure is applied to the Bourdon tube, the sensing element undergoes elastic deformation relative to atmospheric pressure. The resulting movement is transmitted through the internal linkage mechanism, causing the pointer to rotate across the dial face and indicate the corresponding vacuum value.

How to Select a Vacuum Pressure Gauge

• Determine the required vacuum measurement range.
• Select the appropriate dial size based on visibility requirements.
• Verify the required mounting configuration.
• Confirm compatibility between the connection thread and equipment.
• Evaluate environmental conditions and housing material requirements.

Frequently Asked Questions

What is a vacuum pressure gauge?

A vacuum pressure gauge measures pressures below atmospheric pressure and is commonly used in vacuum systems and negative pressure applications.

Why choose a center back mount vacuum gauge?

Center back mounting allows convenient installation into machinery panels and compact equipment designs.

Can this gauge be used with vacuum pumps?

Yes. This type of gauge is commonly applied in vacuum pump systems operating within the specified measurement range.