Orifice Flange
Shanxi Sinomach Co., Ltd. is an industrial international supplier focusing on the design, production and sales of flanges, valves and other pipe fittings.
Since its establishment, the company has always adhered to the business principles of customer-oriented and honest business, with the purpose of meeting customer needs, and providing customers with all-round solutions and high-quality products. This makes our company a long-term partner trusted by many international customers.
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![ANSI Orifice Flange]()
ANSI Orifice FlangeRead More$ 150.00
ANSI GB EN BS JIS orifice flange are widely used in conjunction with orifice meters for measuring
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![DIN Orifice Flange]()
DIN Orifice FlangeRead MoreThe range of EN orifice flanges includes all standard sizes and pressure classes, and all common
Why choose us?
Our Factory
Factory covers an area of 24,500 m2 and has many professional and technical personnel, annual production capacity more than 20,000 tons/year
Our Service
Whether it is pre-sales consultation, sales, or after-sales, we will answer customers' questions 24 hours a day and provide fast and effective solutions until customers are satisfied.
Our Equipment
Our there are 7 sets of forging equipment and 10 sets of heating equipment,the product quality is safe and reliable, reaching the international standard.
Product Application
Our wind power tower flanges, pressure vessel flanges, and petrochemical flanges are used in water conservancy, oil, natural gas and other pipelines.
Types of Orifice Flanges
Square-edged orifice flanges
These flanges have a sharp-edged orifice bore which produces a well-defined flow restriction in the pipeline. In applications requiring high accuracy and repeatability, square-edged orifice flanges are preferred as they minimize turbulence or edge distortion that may affect flow rate calculations.
Concentric orifice flanges
These flanges bear a single circular bore positioned concentrically within the face of the flange. The diameter of the orifice bore is normally smaller than that of the pipe, causing a pressure drop across the plate and allowing for flow rate measurement.
Eccentric orifice flanges
In this case, eccentric orifice flanges contain an off-center orifice bore that helps to reduce turbulences along with improving pressure recovery downstream from them. Eccentric orifices minimize flow disturbances thus providing more stable conditions particularly at low flow rates by being located away from pipe centerline.
Segmental orifice flanges
Also known as quadrant edge orifice flanges, segmental orifices have segmented bores with rounded edges rather than one continuous round boring. For example, velocity profile distortions near pipe wall will occur whenever fluid flows through any other kind of an orifice but not on these modified designs resulting into better flow measurement stability and accuracy.
Restriction orifice flanges
Unlike normal differential pressure measuring devices, restriction orifices serve as fixed-flow-restriction devices in pipelines.the bore serves to restrict the flow of a fluid in a pipe causing a pressure drop across an orifice plate.
Integral orifice flanges
These types of flanges contain the orifice plate as part of the flange assembly thus eliminating the requirement for separate installation of an orifice plate reducing complexity. There is a machined recess on the flange face where gaskets or o-rings are used to install and seal the orifice plate securely.
Benefits of Orifice Flange
Accuracy and reliability
Orifice flanges provide precise flow measurements crucial for process control and operational efficiency.
Cost-effectiveness
Compared to other flow measurement devices, orifice flanges are relatively inexpensive to install and maintain.
Simplicity and ease of installation
Orifice flanges are straightforward to install and integrate into existing pipeline systems, requiring minimal modifications.
Versatility
They are highly versatile because they can be used for a wide range of fluids, including gases, liquids, and steam.
Standardization
The use of standardized orifice flanges ensures compatibility and interoperability within industry systems.
Applications of Orifice Flange
Oil and gas
These flanges measure and control the flow of crude oil, natural gas, and petroleum products throughout production, refining, and distribution stages.
Chemical processing
They ensure precise measurement of chemicals and process fluids, crucial for maintaining reaction conditions and preventing hazards.
Water and sewage treatment
Used to monitor and control the flow of water and wastewater, ensuring treatment plants operate efficiently and meet quality standards.
Power generation
Critical for measuring and controlling steam, water, and other fluids in power plants, optimizing energy production, and ensuring safety.
Petrochemicals
These flanges monitor the flow of raw materials and finished products, optimizing production processes and maintaining safety.
Steel industry
They measure and control the flow of gases and liquids during steel production, ensuring high quality and efficient processes.
Paper and pulp
Used for accurate measurement and control of process fluids, maintaining product quality and optimizing manufacturing processes.
Nuclear industry
Essential for the precise measurement and control of cooling water and other critical fluids, ensuring the safe operation of nuclear reactors.
Product Parameters
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Standard |
Nominal Diameter(mm) |
Pressure Class (LB/MPa/(kg/cm²) |
Material |
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ASME B16.5，ANSI B16.5，ASME B16.47 |
DN15-DN3000 |
300,400,600,900,1500,2500 |
Carbon steel Stainless steel |
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GB/T 9112~9124-2010 |
DN15-DN3000 |
PN1.0, PN1.6, PN2.0, PN5.0, PN10.0, PN15.0, PN25.0, PN42 |
Carbon steel Stainless steel |
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EN 1092 |
DN15-DN3000 |
PN2.5; PN6; PN10; PN16; PN25; PN40; PN63; PN100; PN160 |
Carbon steel Stainless steel |
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BS 3293, 4504, 4505 |
DN15-DN3000 |
PN2.5; PN6; PN10; PN16; PN25; PN40; PN63; PN100; PN160 |
Carbon steel Stainless steel |
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JIS |
DN15-DN500 |
5K, 10K, 16K, 20K |
Carbon steel Stainless steel |
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Remarks: 1. For the details of this type of flange that you need, you can contact us at any time to provide you the better solution; 2. We have the ability to produce non-standard flanges according to the drawings provided by customers, and can also provide drawings and calculations of flanges according to the design parameters of the flanges. |
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Package&Transport
In order to avoid product damage, we pack and transport products in strict accordance with international standards and the terms of the contract to ensure the safety of products during loading and unloading.
Other Services
Payment terms
30% deposit in advance, 70% balance before shipment.
Min.order
1 pkg.
FAQ
As one of the leading orifice flange manufacturers and suppliers in China, we warmly welcome you to buy high-grade orifice flange for sale here from our factory. All our are with high quality and competitive price. For more information, contact us now.
Orifice Flange