Designed for Flow Measurement Systems
Orifice flanges are specifically used in flow measurement systems where accurate monitoring of fluid flow is required.
Unlike standard flanges, they are designed to work together with an orifice plate and differential pressure instruments. By measuring the pressure difference across the plate, the flow rate of liquids, gases, or steam can be calculated.
At Senrui, we supply orifice flanges for applications where measurement accuracy and system reliability are critical.
How Orifice Flanges Work
In a typical system:
- An orifice plate is installed between two flanges
- Fluid passing through the plate creates a pressure drop
- Pressure taps on the flanges connect to a differential pressure transmitter
- Flow rate is calculated based on pressure difference
👉 This method is widely used due to its reliability and cost-effectiveness.
Typical Applications
Orifice flanges are widely used in:
- Oil & gas pipeline metering systems
- Steam flow measurement in power plants
- Refinery and petrochemical instrumentation
- Industrial process control systems
They are suitable for measuring gas, liquid, and steam flow.
Structure of Orifice Flange
Orifice flanges are designed with special features for measurement:
- Two pressure tapping holes (usually 180° apart)
- Jack screws for easy plate installation and removal
- Precision-machined sealing surfaces
- Compatibility with orifice plate assemblies
These features ensure accurate pressure measurement and easy maintenance.
Size & Specification
- Size range: 1/2” to 24”
- Pressure rating: Class 150 – 2500
- Standards: ASME B16.5, DIN, EN
Custom configurations are available based on project requirements.
Manufacturing & Quality Control
To ensure measurement accuracy, machining precision is essential.
Our process includes:
- Raw material inspection
- Precision machining of pressure tap locations
- Threading and drilling accuracy control
- Dimensional inspection
- Final testing before shipment
Each flange is checked to ensure proper alignment and sealing performance.
Export Experience
We have supplied orifice flanges for:
- Oil & gas metering projects
- Power plant steam systems
- Industrial instrumentation contractors
We understand the requirements of instrumentation and measurement systems.
Request a Quote
If you are sourcing orifice flanges for flow measurement systems, please send:
- Size and pressure class
- Standard (ASME / DIN)
- Application (gas / liquid / steam)
- Quantity
We will respond within 24 hours.
Orifice Flange Types and Keywords
We supply a full range of:
- orifice flange manufacturer
- orifice plate flange supplier
- flow measurement flange
- differential pressure flange
- metering flange for pipelines
Technical Overview
- Function: flow measurement
- Measurement method: differential pressure
- Used with: orifice plate + DP transmitter
- Application: gas, liquid, steam flow measurement
- Installation: between two pipeline sections
Key Features
- Accurate pressure tapping for flow measurement
- Easy installation and maintenance
- Reliable performance in industrial systems
- Suitable for high pressure and temperature conditions
- Compatible with standard instrumentation systems
What is an orifice flange
An orifice flange is a special flange used in flow measurement systems, designed to work with an orifice plate and pressure instruments.
How does an orifice flange measure flow
It measures flow by detecting the pressure difference created when fluid passes through an orifice plate.
What is the difference between orifice flange and normal flange
Orifice flanges have pressure taps and are used for measurement, while normal flanges are only used for pipe connection.
Where are orifice flanges used
They are commonly used in oil & gas, steam systems, power plants, and industrial process control.
Can orifice flanges be customized
Yes, we can produce according to project specifications and instrumentation requirements.
