Description
Capsule Pressure Gauge
Precision Low Pressure Measurement for Air, Gas & Industrial Process Applications
The Capsule Pressure Gauge, 2 1/2″ (63 mm) Dial, Range 0 to 600 mmWC with Dual Scale 0 to 60 mBar is a high-quality low-pressure measuring instrument designed for accurate monitoring of very low positive pressure in air, gas, and non-corrosive process media. Manufactured for dependable industrial performance, this compact capsule pressure gauge is ideal for applications where conventional Bourdon tube gauges are not sensitive enough to detect low pressure variations.
Designed with a stainless steel case, stainless steel wetted parts, and a bayonet type case construction, this gauge combines precision, durability, and ease of maintenance. With a direct mounting bottom entry and 1/4″ BSP male connection, it is easy to install in a wide variety of systems including HVAC units, clean rooms, burners, furnaces, duct lines, filtration systems, and process control setups.
If you are looking for a reliable low-pressure capsule gauge in mmWC and mBar scale, this product delivers excellent readability, stable performance, and long service life.
Low pressure measurement requires specially designed instruments capable of responding accurately to small pressure changes. This capsule pressure gauge uses a capsule sensing element specifically engineered for low-pressure applications, allowing accurate readings where standard pressure gauges may fail.
The gauge measures:
- 0 to 600 mmWC
- Dual Scale: 0 to 60 mBar
This makes it highly suitable for industries that use water column or millibar pressure units for ventilation, combustion control, gas distribution, and airflow balancing systems.
Its compact 63 mm dial size makes it ideal where installation space is limited while still offering clear visibility.
Key Features
Accurate Low Pressure Measurement
This capsule pressure gauge is designed for precise measurement of low pressure from 0 to 600 mm water column, ensuring dependable readings in sensitive systems.
Dual Scale Dial
The gauge features a dual scale for easy reading in:
- mmWC (Millimeter Water Column)
- mBar (Millibar)
This allows operators to work conveniently across multiple unit systems without conversion.
Compact 2 1/2″ (63 mm) Dial
The 63 mm dial size offers:
- Space-saving installation
- Easy visibility
- Clear scale markings
- Ideal for compact panels and machinery
Stainless Steel Construction
Manufactured with:
- SS Case
- SS Wetted Parts
This ensures excellent corrosion resistance, durability, and suitability for industrial environments.
Bayonet Type Case
The bayonet bezel design provides:
- Easy servicing
- Quick maintenance access
- Better long-term usability
Bottom Entry Direct Mounting
The bottom connection style is ideal for:
- Pipeline mounting
- Panel installations
- Equipment mounting
- Inline pressure systems
Standard 1/4″ BSP (M) Thread
The gauge includes a standard 1/4″ BSP male connection, allowing easy integration into most industrial systems.
Applications of Capsule Pressure Gauge
This low-pressure gauge is widely used in industries where small pressure differences need to be monitored accurately.
1. HVAC Systems
Used for measuring:
- Air duct pressure
- Fan discharge pressure
- Filter pressure
- Clean room positive pressure
- Air balancing systems
2. Burners & Furnaces
Ideal for:
- Burner gas pressure
- Combustion air pressure
- Furnace chamber pressure
- Draft monitoring
3. Pharmaceutical & Clean Rooms
Used in environments requiring controlled low pressure such as:
- Clean rooms
- HVAC validation systems
- Air handling units
4. Gas Distribution Systems
Suitable for:
- LPG lines
- Natural gas systems
- Low-pressure gas manifolds
- Instrument air systems
5. Industrial Filtration Systems
Used to measure:
- Filter loading
- Pressure drop across filters
- Blower line pressure
6. Laboratory & Testing Systems
Useful in:
- Airflow testing benches
- Pressure calibration setups
- Experimental systems
How Capsule Pressure Gauge Works
Unlike standard Bourdon tube gauges used for medium and high pressure, capsule gauges use two diaphragms joined together to form a capsule element.
When pressure enters the sensing chamber:
- The capsule expands slightly.
- This movement transfers through a mechanical linkage.
- The pointer moves across the dial.
- Pressure is displayed accurately.
This mechanism makes capsule gauges ideal for low-pressure ranges because they are highly sensitive to small pressure changes.
Benefits of Using Capsule Pressure Gauge
1. Excellent Sensitivity
The capsule sensing element reacts accurately to very low pressures.
2. Better Than Standard Gauges for Low Pressure
Conventional gauges may not respond accurately at low ranges, while capsule gauges are purpose-built for this task.
3. Long Service Life
Stainless steel construction ensures durability in industrial environments.
4. Easy to Read
Dual scale and clear dial markings improve operator convenience.
5. Compact Size
Perfect for installations with limited space.
6. Reliable Operation
Mechanical design requires no electricity or batteries.
Construction Details
1. Stainless Steel Case
Provides protection from:
- Dust
- Moisture
- Mild corrosion
- Mechanical wear
2. Stainless Steel Wetted Parts
Ensures compatibility with:
- Air
- Non-corrosive gases
- Low-pressure process media
3. Bayonet Bezel
Allows front access for servicing and calibration.
4. Clear Window
Protects dial while maintaining readability.
5. Precision Pointer Mechanism
Ensures stable and repeatable readings.
Installation Guidelines
For best performance:
- Install vertically
- Use proper thread sealing tape
- Avoid overtightening
- Prevent vibration where possible
- Ensure media compatibility
The bottom entry mounting is best suited for direct pipeline and panel installations.
Maintenance Tips
To maintain performance:
- Keep dial window clean
- Avoid overpressure beyond range
- Inspect periodically for pointer zero error
- Protect from severe vibration
- Use clean media lines
With proper care, the gauge offers years of dependable service.
Why Choose This Capsule Pressure Gauge?
If your process requires accurate low-pressure indication, this gauge offers an excellent balance of precision, durability, and compact size.
It is especially beneficial for users who need:
- mmWC pressure measurement
- mBar dual scale
- Stainless steel construction
- Small dial size
- Reliable low-pressure monitoring
Industries Served
This product is suitable for:
- HVAC Contractors
- Pharmaceutical Plants
- Clean Room Installers
- Boiler & Furnace Manufacturers
- Gas Equipment Suppliers
- Air Handling Unit Manufacturers
- Industrial OEMs
- Process Plants
Why Buy from Japsin Instrumentation?
Japsin Instrumentation is known for dependable industrial gauges and process measurement products. Our instruments are designed for performance, durability, and industrial reliability.
Benefits of Choosing Japsin:
- Quality manufacturing
- Accurate instruments
- Strong after-sales support
- Industrial-grade products
- Competitive pricing
- Custom solutions available
Conclusion
The Capsule Pressure Gauge, 2 1/2″ (63 mm), 0 to 600 mmWC / 60 mBar is a compact, durable, and highly accurate instrument designed for low-pressure measurement in industrial and commercial systems.
With stainless steel construction, bayonet type case, dual scale dial, and standard bottom entry connection, it is an ideal solution for HVAC, gas, clean room, filtration, and process applications.
For users who need dependable low-pressure indication with long service life, this capsule pressure gauge is an excellent choice.
Japsin Instrumentation – Since 1974
Neeraj Malhotra –
Bought this gauge for our air compressor panel and it works very well.