DIFFERENTIAL PRESSURE GAUGE | PM-E.VN

What Is a Differential Pressure Gauge?

A Differential Pressure Gauge is an instrument designed to measure the pressure difference between two points within the same system. It plays an important role in monitoring flow conditions, filter status, and pressure balance in industrial processes.

Unlike standard pressure gauges that measure only a single pressure point, differential pressure gauges display the actual pressure difference (ΔP), helping operators maintain safe and stable system performance.

Industrial Applications of Differential Pressure Gauges

Differential pressure gauges are widely used in:

• HVAC and central air conditioning systems
• Cleanroom pressure monitoring
• Air and water filtration systems
• Gas and liquid flow measurement
• Pipeline pressure monitoring
• Pharmaceutical and food processing plants
• Water and wastewater treatment facilities
• Electronics and semiconductor manufacturing
• Chemical industries

In cleanroom environments, differential pressure gauges help maintain positive or negative pressure between rooms to minimize dust and bacterial contamination.

Key Advantages

Industrial differential pressure gauges offer several operational benefits:

• High measurement accuracy
• Excellent corrosion and vibration resistance
• Durable construction for industrial environments
• Suitable for gas and liquid applications
• No external power supply required
• Easy installation and maintenance
• Available in multiple sizes and pressure ranges

These gauges are suitable for both low-pressure mbar applications and high-pressure industrial systems.

Measuring Elements & Working Principle

Differential pressure gauges operate by detecting pressure variation between two connection points.

When both pressures are equal, the pointer remains stationary. Once a pressure difference occurs, the sensing mechanism inside the gauge creates mechanical movement and displays the ΔP value on the dial.

Depending on the application, the instrument may use different sensing technologies such as:

• Diaphragm element
• Bourdon tube
• Capsule element

The fully mechanical operating principle ensures stable performance, long service life, and minimal maintenance requirements.

Technical Specifications

• Dial sizes: 63 mm, 80 mm, 100 mm, 160 mm
• Pressure ranges: from 0 ~ 0.5 mbar up to 0 ~ 1000 bar
• Accuracy: ±2%
• Connection type: Threaded or flanged
• Standard connection: 1/8” Female NPT
• Materials: Stainless Steel 304 / Stainless Steel 316
• Operating temperature: up to 60°C
• Suitable media: Air, water, steam, and industrial liquids
• Origin: Japan, Korea, Europe, Taiwan

PM-E.VN – Trusted Differential Pressure Gauge Supplier in Vietnam

PM-E.VN – Phuc Minh Engineering is a trusted supplier of industrial pressure instruments, valves, and piping accessories for various industries in Vietnam.

Our pressure gauges are directly imported from Japan, Korea, and Europe, meeting technical requirements for industrial plants and engineering projects.

We are currently a distribution partner of well-known brands such as:

• YAMAMOTO KEIKI
• WIKA
• WISE

Why Choose PM-E.VN?

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

Our experienced engineering team is always ready to support customers in selecting suitable solutions for HVAC systems, cleanrooms, water treatment systems, and industrial production lines.

Related Products

• Oil Filled Pressure Gauge
• Compound Pressure Gauge
• Vacuum Pressure Gauge
• Diaphragm Pressure Gauge
• Water Pressure Gauge
• Pneumatic Pressure Gauge
• Low Pressure mbar Gauge
• Brass Connection Pressure Gauge

Contact Us for Technical Support & Quotation

📧 Email: info@pm-e.vn
☎ Hotline: +84 902 720 814 – +84 907 450 506 – +84 902 601 875
🌐 www.pm-e.vn

PM-E.VN is committed to supplying high-quality differential pressure gauges for industrial systems, HVAC applications, cleanrooms, and manufacturing plants throughout Vietnam.