LOW PRESSURE GAUGE MBAR | PM-E.VN

What Is a Low Pressure Gauge mbar?

A Low Pressure Gauge mbar is a mechanical instrument designed to measure low pressure levels of gases or liquids in industrial systems.

This type of gauge is specially engineered for low-pressure, vacuum, or differential pressure applications where standard Bourdon tube pressure gauges cannot provide accurate readings.

Typical measuring ranges include:

• -600 mbar to +600 mbar
• Equivalent to:
  • 0.6 bar
  • 60 kPa
  • 8.7 PSI

These gauges are widely used in:

• Low-pressure systems
• Vacuum systems
• Low-pressure pneumatic systems
• HVAC and ventilation systems
• Medical equipment
• Oil & gas and chemical industries

  

What Is mbar?

mbar (millibar) is a pressure measurement unit commonly used for low-pressure applications in industrial and scientific environments.

Conversion:

• 1 mbar = 100 Pascal (Pa)

The mbar unit is widely used in:

• Low-pressure air systems
• HVAC equipment
• Vacuum technology
• Air filtration systems
• Environmental monitoring equipment

Due to its ability to measure very small pressure changes accurately, the mbar pressure gauge is ideal for high-sensitivity applications.

Key Features of Low Pressure Gauges

Low pressure gauges are commonly used because of the following advantages:

• High accuracy for low-pressure measurement
• Excellent sensitivity to small pressure variations
• Rugged and durable construction
• Good vibration and corrosion resistance
• Stable operation in industrial environments
• High overpressure protection capability
• Suitable for vacuum and low-pressure systems

The device enables operators to monitor sensitive pressure conditions with high precision.

Technical Specifications

Dial Sizes

• 63 mm
• 100 mm
• 150 mm
• 200 mm

Case Materials

• Stainless Steel 304
• Stainless Steel 316
• Brass

Thread Sizes

• 1/4”
• 3/8”
• 1/2”
• 3/4”
• 1”
• 1-1/4”

Connection Types

• Threaded connection
• Flanged connection

Mounting Styles

• Bottom mount
• Back mount
• Offset back mount

Gauge Types

• Liquid-filled
• Dry type

Protection Ratings

• IP65
• IP67
• IP68

Accuracy Classes

• Class 1.0
• Class 1.6
• Class 2.5

Pressure Range

• -600 mbar to +600 mbar

Operating Temperature

• -20°C to 65°C

Suitable Media

• Air
• Gas
• Steam
• Low-pressure air systems

Lens Thickness

• 4 mm

Working Principle of Low Pressure Gauges

Low pressure gauges operate using a highly sensitive capsule mechanism.

Inside the gauge are two thin metal diaphragms made of:

• Brass
• Stainless steel

These diaphragms are joined together to form a sealed capsule element.

When pressure changes occur, the capsule:

• Expands
• Or contracts

This movement is transmitted to the mechanical movement mechanism, which rotates the pointer across the dial display.

Thanks to the large diaphragm surface area and high sensitivity, the gauge can detect extremely small pressure variations with accuracy up to ±1%.

Overpressure Protection Capability

Low pressure gauges are designed with high safety standards.

The capsule element is supported and protected by the surrounding gauge case, allowing the instrument to withstand significant overpressure conditions.

Some models can tolerate:

• Up to 50 times full-scale overpressure

This ensures reliable and safe operation in harsh industrial environments.

Industrial Applications

Low pressure gauges mbar are widely used in:

• Vacuum systems
• Fan and blower monitoring
• HVAC systems
• Air filter monitoring
• Low-pressure pneumatic systems
• Vacuum pumps
• Medical equipment
• Environmental technology
• Power plants
• Oil & gas industries
• Petrochemical plants
• Industrial mechanical systems

The device plays an important role in:

• Monitoring low pressure conditions
• Checking system performance
• Detecting filter blockage
• Improving operational safety

PM-E.VN – Trusted Supplier of Pressure Gauges in Vietnam

PM-E.VN – Phuc Minh Engineering specializes in supplying pressure gauges, industrial valves, and instrumentation equipment for industrial systems throughout Vietnam.

Our products are imported directly from Japan, Korea, and Europe with full CO-CQ certification.

We distribute products from reputable brands such as:

• YAMAMOTO KEIKI
• WIKA
• WISE

Why Choose PM-E.VN?

• Genuine imported products
• Full CO-CQ documentation
• Competitive pricing for projects and distributors
• Professional technical support
• Wide range of pressure ranges and connection options
• Fast nationwide delivery
• Application-focused consultation

Our engineering team is always ready to help customers select the most suitable pressure measurement solutions for low-pressure systems and industrial applications.

Related Products

• Vacuum pressure gauges
• Compound pressure gauges
• Diaphragm pressure gauges
• Pneumatic pressure gauges
• Water pressure gauges
• Differential pressure gauges
• Stainless steel pressure gauges
• Liquid-filled pressure gauges
• Industrial thermometers

Contact Us for Consultation & Quotation

📧 Email: info@pm-e.vn
☎ Hotline: 0902 720 814 – 0907 450 506 – 0902 601 875
🌐 www.pm-e.vn

PM-E.VN is committed to supplying high-quality low pressure gauges mbar that meet industrial standards for HVAC systems, vacuum applications, low-pressure monitoring, and industrial manufacturing plants.