Pruducts
Micro-pressure Flow Sight Glass
Micro-pressure Flow Sight Glass
Micro-pressure Flow Sight Glass
Micro-pressure Flow Sight Glass
The micro-pressure flow sight glass is an instrumental valve. It is defined as a meter that indicates measured flow rate and/or total fluid volume within a specified time interval. In short, it measures fluid flow in pipelines and open channels, with cubic meters per hour as the common engineering unit.
It is classified into flow rate and total flow. Flow rate refers to the fluid volume passing through the effective cross-section of enclosed pipelines or open channels per unit time, covering gas, liquid and solid media. Total flow means the cumulative fluid volume passing through the cross-section over a certain period such as a day, week, month or year. Total flow can be obtained by integrating flow rate over time, so mutual conversion between flow rate meters and total flow meters is feasible.
1. Structure
This sight glass consists of six components: valve body, gland, viewing window, positioning ring, swirler and swirl plate.
2. Working Principle
It is an essential accessory for monitoring medium operating conditions inside pipelines. Conventional flow observation methods are no longer applicable in closed-loop control systems. Equipped with an intuitive viewing window, this monitor enables real-time observation of fluid status and flow data detection even under ultra-low flow velocity conditions.
Widely used in petroleum, chemical, chemical fiber, pharmaceutical, food and other industrial facilities, it facilitates real-time inspection of liquid, gas and steam flow, serving as an indispensable part to ensure stable production.
3. Application Fields
3.1 Industrial Production
Flow meters are major process automation instruments. They are widely applied in metallurgy, power, coal, chemical, petroleum, transportation, construction, textile, food, pharmaceutical, agriculture, environmental protection and daily life sectors. They play a key role in boosting industrial and agricultural production, saving energy, optimizing product quality and improving economic benefits and management efficiency.
In automatic control systems, flow meters act as detection devices for process regulation and volume gauges for material measurement.
3.2 Energy Measurement
Energy sources are categorized into primary energy including coal, crude oil, coalbed gas, petroleum gas and natural gas, secondary energy including electricity, coke, manufactured gas, refined oil, liquefied petroleum gas and steam, as well as energy-carrying working media such as compressed air, oxygen, nitrogen, hydrogen and water. Energy measurement supports scientific energy management, energy conservation and economic benefit growth.
As core measuring equipment, flow meters are massively adopted for water, gas, steam and oil metering, and are indispensable for energy management and economic accounting.
3.3 Environmental Protection Engineering
Discharge of flue gas, waste liquid and sewage severely pollutes the atmosphere and water resources. Sustainable development has been set as a national strategy, making environmental protection a core issue in the 21st century. Effective pollution control relies on quantitative emission monitoring, where flow meters occupy an irreplaceable position in flue gas, sewage and waste gas measurement.
Coal is China's main energy source, and numerous chimneys continuously emit flue gas. Each chimney shall be fitted with gas analyzers and flow meters to form continuous emission monitoring systems. Flue gas measurement faces multiple difficulties, including oversized irregular chimneys, variable gas composition, wide flow velocity range, dust contamination, corrosion, high temperature and lack of straight pipe sections.
4. Advantages
- Compact and sturdy valve body with integrated CNC machining, attractive appearance and long service life
- Compatible with various fluids, including corrosive liquid and gas
- High measuring accuracy
- Wide applicability for liquid, gas and steam in conventional industrial processes
- Low pressure loss
- Suitable for relatively high temperature environments
- Transparent viewing window without interfering fluid flow
- Supports vertical and horizontal installation, easy assembly
- Adaptable to ultra-low flow velocity working conditions
5. Technical Parameters
- Monitoring flow rate: 1～30 m³/h
- Working pressure: 0.3～0.5 MPa
- Ambient temperature: -20～+50 ℃
- Micro power consumption: 0.15 μw
- Weight: 160 g
- Rotational speed: ≥200 r/min
- Material: 0Cr18Ni9
- Medium flow velocity: 3～500 m/s
Micro-pressure Flow Sight Glass
Micro-pressure Flow Sight Glass
The micro-pressure flow sight glass is an instrumental valve. It is defined as a meter that indicates measured flow rate and/or total fluid volume within a specified time interval. In short, it measures fluid flow in pipelines and open channels, with cubic meters per hour as the common engineering unit.
It is classified into flow rate and total flow. Flow rate refers to the fluid volume passing through the effective cross-section of enclosed pipelines or open channels per unit time, covering gas, liquid and solid media. Total flow means the cumulative fluid volume passing through the cross-section over a certain period such as a day, week, month or year. Total flow can be obtained by integrating flow rate over time, so mutual conversion between flow rate meters and total flow meters is feasible.
1. Structure
This sight glass consists of six components: valve body, gland, viewing window, positioning ring, swirler and swirl plate.
2. Working Principle
It is an essential accessory for monitoring medium operating conditions inside pipelines. Conventional flow observation methods are no longer applicable in closed-loop control systems. Equipped with an intuitive viewing window, this monitor enables real-time observation of fluid status and flow data detection even under ultra-low flow velocity conditions.
Widely used in petroleum, chemical, chemical fiber, pharmaceutical, food and other industrial facilities, it facilitates real-time inspection of liquid, gas and steam flow, serving as an indispensable part to ensure stable production.
3. Application Fields
3.1 Industrial Production
Flow meters are major process automation instruments. They are widely applied in metallurgy, power, coal, chemical, petroleum, transportation, construction, textile, food, pharmaceutical, agriculture, environmental protection and daily life sectors. They play a key role in boosting industrial and agricultural production, saving energy, optimizing product quality and improving economic benefits and management efficiency.
In automatic control systems, flow meters act as detection devices for process regulation and volume gauges for material measurement.
3.2 Energy Measurement
Energy sources are categorized into primary energy including coal, crude oil, coalbed gas, petroleum gas and natural gas, secondary energy including electricity, coke, manufactured gas, refined oil, liquefied petroleum gas and steam, as well as energy-carrying working media such as compressed air, oxygen, nitrogen, hydrogen and water. Energy measurement supports scientific energy management, energy conservation and economic benefit growth.
As core measuring equipment, flow meters are massively adopted for water, gas, steam and oil metering, and are indispensable for energy management and economic accounting.
3.3 Environmental Protection Engineering
Discharge of flue gas, waste liquid and sewage severely pollutes the atmosphere and water resources. Sustainable development has been set as a national strategy, making environmental protection a core issue in the 21st century. Effective pollution control relies on quantitative emission monitoring, where flow meters occupy an irreplaceable position in flue gas, sewage and waste gas measurement.
Coal is China's main energy source, and numerous chimneys continuously emit flue gas. Each chimney shall be fitted with gas analyzers and flow meters to form continuous emission monitoring systems. Flue gas measurement faces multiple difficulties, including oversized irregular chimneys, variable gas composition, wide flow velocity range, dust contamination, corrosion, high temperature and lack of straight pipe sections.
4. Advantages
- Compact and sturdy valve body with integrated CNC machining, attractive appearance and long service life
- Compatible with various fluids, including corrosive liquid and gas
- High measuring accuracy
- Wide applicability for liquid, gas and steam in conventional industrial processes
- Low pressure loss
- Suitable for relatively high temperature environments
- Transparent viewing window without interfering fluid flow
- Supports vertical and horizontal installation, easy assembly
- Adaptable to ultra-low flow velocity working conditions
5. Technical Parameters
- Monitoring flow rate: 1～30 m³/h
- Working pressure: 0.3～0.5 MPa
- Ambient temperature: -20～+50 ℃
- Micro power consumption: 0.15 μw
- Weight: 160 g
- Rotational speed: ≥200 r/min
- Material: 0Cr18Ni9
- Medium flow velocity: 3～500 m/s