Orifice Plate Assembly – Complete Guide by Saitechflow | Manufacturer & Supplier in Pune, India
An Orifice Plate Assembly is one of the most widely used primary flow measurement devices in industrial applications. It is known for its accuracy, reliability, simplicity, and cost-effectiveness, making it a preferred choice for measuring the flow of liquids, gases, and steam across various industries. At Saitechflow, we specialize in designing, manufacturing, and supplying high-precision Orifice Plate Assemblies engineered according to international standards such as ISA, AGA, ISO 5167, ASME, and API.
Saitechflow, based in Pune, India, has built a strong reputation for delivering robust and high-performance flow measurement solutions. Our Orifice Plate Assemblies are suitable for different operating conditions, pressure classes, line sizes, and fluid characteristics. Whether it is process monitoring, energy management, or industrial automation—Saitechflow provides premium-quality Orifice Plate Assemblies that ensure high accuracy and stable performance.
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What is an Orifice Plate Assembly?
An Orifice Plate Assembly consists of a thin metal plate with a precise hole (orifice) at the center, installed between two flanges or within an orifice fitting. As the fluid passes through the small opening, it creates a pressure differential that can be measured and converted into a flow rate.
The assembly typically includes:
- Orifice Plate
- Orifice Flange Assembly
- Pressure Tappings (Corner, Flange, or D-D)
- Gaskets & Bolting
- Orifice Carrier (optional depending on design)
- Flow Straighteners (if required)
Saitechflow manufactures all components using high-grade materials with maximum dimensional accuracy to ensure repeatable and precise flow measurement.
Why Choose Orifice Plate Assemblies from Saitechflow?
Saitechflow offers Orifice Plate Assemblies that meet stringent quality requirements of the global process industry. Here’s why customers across industries trust us:
- High Accuracy & Repeatability
Each Orifice Plate is manufactured using advanced CNC machines and laser calibration techniques. This ensures optimum accuracy and consistency for long-term usage.
- Standards-Compliant Design
All assemblies comply with:
- ISO 5167
- ASME MFC
- AGA 3
- API MPMS
- MESC SPE
- Full Customization
Saitechflow provides customized options:
- Bore size
- Plate thickness
- Bevel shape
- Material grade
- Tapping type
- Pressure class (150 – 2500)
- Long Service Life
We use SS304, SS316, Duplex Steel, Monel, Inconel, Hastelloy, and other high-quality corrosion-resistant alloys for enhanced operational life.
- Expertise & Technical Support
Our engineering experts guide clients in:
- Choosing the right plate type
- Flow calculations
- Installation support
- Calibration
- Competitive Pricing
As a leading manufacturer & supplier in Pune, our optimized production results in cost-effective pricing without compromising quality.
Types of Orifice Plates Manufactured by Saitechflow
- Concentric Orifice Plate
This is the most widely used Orifice Plate type, ideal for clean liquids and gases.
Advantages:
- Simple design
- High accuracy
- Cost-effective
- Eccentric Orifice Plate
Used for fluids containing solids or sludge, because the eccentric opening prevents material deposition.
Applications:
- Slurries
- Viscous fluids
- Non-Newtonian liquids
- Segmental Orifice Plate
Contains a segmental opening instead of a circular bore. It minimizes clogging and allows smooth flow of fluids with high particle content.
- Quadrant Edge Orifice Plate
Best suited for low Reynolds number flows and viscous fluids.
Benefits:
- Reduces uncertainty
- Better performance in laminar flow
- Restriction Orifice Plate
Used to reduce pressure intentionally instead of measuring flow.
Typical uses:
- Pump protection
- Pressure drop control
Saitechflow manufactures all these configurations with precision-engineered bores to meet customer-specific flow requirements.
Orifice Plate Assembly Components by Saitechflow
- Orifice Plates
Made from premium materials:
- SS304 / SS316
- Duplex & Super Duplex
- Monel / Inconel / Hastelloy
- Carbon Steel
- Titanium
Plate thickness and bore dimensions follow international standards.
- Orifice Flanges
Available in:
- Raised Face
- Ring Type Joint (RTJ)
- Weld Neck
- Slip-On
Pressure ratings:
- ANSI/ASME Class 150 to 2500
- DIN PN 10 to PN 250
- Pressure Tappings
Saitechflow provides:
- Corner taps
- Flange taps
- D-D taps
- Radius taps
These tapping configurations help obtain accurate differential pressure measurements.
- Gasket & Bolting Kits
We supply:
- Spiral wound gaskets
- PTFE gaskets
- CAF gaskets
Bolting materials include SS, MS, and high-tensile variants.
- Universal Orifice Carrier
For easier installation and maintenance, we provide carriers with:
- Neoprene seals
- Indicator plates
- Centering devices
Working Principle of Orifice Plate Assembly
The Orifice Plate Assembly works on the Bernoulli’s Principle. When a fluid flows through the pipeline and passes through the orifice opening, the velocity increases, and pressure drops.
The difference between upstream and downstream pressure is measured using:
- Differential Pressure Transmitter (DP Transmitter)
- Manometer
- Mechanical gauge
This differential pressure is then converted into volumetric or mass flow rate.
The formula used:
Q = C × A × √(2ΔP/ρ)
Where:
- Q = Flow rate
- C = Discharge coefficient
- A = Area of orifice
- ΔP = Differential pressure
- ρ = Fluid density
Saitechflow provides complete engineering documentation, including bore calculations and installation drawings.
Applications of Orifice Plate Assembly
Saitechflow Orifice Plate Assemblies are used across diverse industries:
- Oil & Gas Industry
- Natural gas measurement
- Petroleum products
- Refinery operations
- Chemical & Petrochemical Plants
- Process fluid monitoring
- Reaction control
- Utility flow measurement
- HVAC & Building Systems
- Air flow
- Steam distribution
- Chilled water systems
- Water & Wastewater Treatment
- Potable water
- Effluent flow
- Treated water monitoring
- Power Generation
- Boiler feedwater
- Steam lines
- Gas lines
- Food & Beverage Industry
- Ingredient dosing
- Steam sterilization flow
- Pharmaceutical & Biotech
- Clean utility services
- CIP (Clean-in-place) systems
Saitechflow’s Orifice Plate Assemblies perform reliably even under harsh operating conditions, making them suitable for critical industrial applications.
Technical Features of Saitechflow Orifice Plate Assembly
- Accuracy: ±0.5% to ±1%
- Repeatability: ±0.1%
- Operating Temperature: -40°C to 550°C
- Pressure Class: 150 to 2500
- Flow Range: Wide range based on bore and line size
- Material Traceability: MTC 3.1 / 3.2
- Bore Calculation: Provided as per ISO 5167
- Surface Finish: Mirror-polished bores for precision
- Custom Engraving: Flow direction, tag number, material grade, size
Advantages of Using Saitechflow Orifice Plate Assemblies
✔ Highly economical
✔ No moving parts → zero maintenance
✔ Long service life
✔ Easy installation on existing pipelines
✔ Suitable for all pipe sizes
✔ Works with liquids, gases, steam
✔ Accurate measurement across wide flow ranges
✔ Can withstand high pressure & temperature
Why Saitechflow is the Best Manufacturer & Supplier in India
Saitechflow stands out due to:
In-house Manufacturing Facility
Advanced CNC, laser cutting, and precision polishing equipment ensure top-tier quality.
Strong Quality Control
Each Orifice Plate Assembly passes through:
- Visual inspection
- Dimensional check
- Hydro testing
- DP calibration test
Fast Delivery Across India & Overseas
Based in Pune, we support customers PAN-India and abroad.
OEM & Bulk Supply Capabilities
We supply large quantities to EPC contractors, OEMs, and engineering companies.
Affordable Pricing
Competitive rates make Saitechflow the preferred partner for flow measurement solutions.
Conclusion
Saitechflow is one of the leading manufacturers and suppliers of Orifice Plate Assemblies in Pune, Maharashtra, and across India. Our products are engineered with precision, designed according to international standards, and tested for long-term reliability.
If you are looking for accurate, durable, and cost-effective Orifice Plate Assemblies, Saitechflow is your trusted partner for all industrial flow measurement applications.
