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OEM Aluminum Pipe Flow Meter Manufacturer

OEM Aluminum Pipe Flow Meter
Manufacturer

Feiya Machinery is a specialized manufacturer of aluminum pipe flow meters designed for industrial fluid transfer systems. Whether for fuel depots, chemical pipelines, or oil refineries, we produce high-precision inline flow meter housings that integrate seamlessly into your existing piping infrastructure.
Manufacturing a large-diameter pipe flow meter requires exceptional casting stability to handle high fluid pressures. Feiya utilizes advanced Gravity Die Casting and Low-Pressure Die Casting (LPDC) to create robust aluminum meter bodies ranging from 1.5" to 6" in diameter. By leveraging our large-scale CNC boring centers, we machine the internal metering chamber with strict concentricity, ensuring that our pipeline flow meters deliver accurate flow monitoring with minimal pressure drop, even in high-velocity heavy-duty applications.



Home > Pipe Flow Meter

Our Meter Pipe Manufacturing
Advantages

High-Integrity Pressure Castings

High-Integrity Pressure Castings

A pipe flow meter is technically a part of the pressure vessel system. For large-diameter bodies (up to 6 inches), we utilize Gravity Die Casting or Low-Pressure Die Casting (LPDC). Unlike sand casting, this process produces a dense, non-porous structure with high burst pressure resistance, ensuring the meter body can safely withstand hydraulic surges in the pipeline without leaking or cracking.
Minimized Pressure Drop Design

Minimized "Pressure Drop" Design

In industrial piping, flow restriction wastes energy. Feiya engineers the internal runners of the aluminum flow meter to be hydrodynamically smooth. Coupled with our precision CNC machining that aligns the inlet/outlet perfectly, we significantly reduce fluid turbulence. This results in a lower pressure drop across the meter, allowing your pumps to operate efficiently even at maximum flow rates.
Large-Bore Precision Machining

Large-Bore Precision Machining

Machining large diameters requires specialized equipment. Feiya is equipped with heavy-duty CNC centers capable of boring large metering chambers with micron-level cylindricity. This precision ensures that the internal rotors or measuring elements float perfectly within the pipe flow meter body, preventing fluid bypass (slippage) and guaranteeing high metering accuracy for bulk transfers.
Lightweight for Easy Installation

Lightweight for Easy Installation

Traditional cast iron pipe meters are heavy and difficult to support in overhead piping. Our aluminum pipe flow meters offer the same structural strength but at 1/3 the weight. This lightweight design reduces the structural load on your pipeline infrastructure and simplifies maintenance, allowing a single technician to handle installation without heavy lifting cranes.

Custom Pipe Flow Meter Samples

Pipe Flow Meter

Pipe Flow Meter

Applied in engine, transmission, and cooling systems for reliable operation.

Custom Flow Meter Pipe Services

Feiya engineers custom pipe flow meter housings designed to fit perfectly into your industrial piping systems. Whether you are upgrading a fuel depot or building a new chemical transfer line, we adapt our casting and machining specifications to match your exact pipeline requirements. From standard 2-inch inline meters to massive 6-inch bulk transfer units, our flexible manufacturing process ensures that every pipe flow meter we produce aligns with your specific flow rates, pressure ratings, and flange standards, facilitating a hassle-free "bolt-on" installation.

Customization Parameter Feiya Manufacturing Standard & Options
Pipeline Line Sizes Wide Range:Custom casting and boring for 1.5", 2", 3", 4", and 6" pipe diameters (DN40 to DN150) to match your flow velocity.
Flange Connections Standard Integration:Precision machining of flange connections to meet global standards: ANSI / ASME(Class 150), DIN / PN(PN10/16), or JIS.
Housing Geometry Mechanism Support:Custom internal cavities to house various measuring elements, including Oval Gear, Roots/Rotary, or Turbine mechanisms inside the pipe body.
Material Strength Pressure Ratings:Optimized aluminum alloys (A356-T6) designed to withstand specific pipeline pressures(e.g., 10 bar, 16 bar) without deformation.
Port Orientation Flexible Layouts:Inline (Linear), 90-degree Elbow, or custom-angled inlet/outlet designs to fit tight spaces in skid-mounted systems.
Surface Protection Industrial Coating:Epoxy powder coating, anodizing, or specialized painting to protect the meter exterior from harsh outdoor terminal environments.

How We Manufacture Your Bulk Flow
Meter

Manufacturing a large-diameter pipe flow meter requires mastering the behavior of large aluminum castings. Feiya combines advanced Gravity Die Casting with heavy-duty CNC machining to produce meter bodies that offer exceptional dimensional stability and pressure integrity for your pipeline infrastructure.

Step 1: Solidification Analysis & DFM

Step 1: Solidification Analysis & DFM

Large castings are prone to shrinkage. Before tooling, our engineers use Mold Flow Simulation to predict cooling rates. We optimize the riser and gate designs to feed molten aluminum into critical areas, preventing shrinkage porosity in the thick flange sections and ensuring the housing is structurally sound.

Step 2: Gravity & Low-Pressure Casting

Step 2: Gravity & Low-Pressure Casting

For larger meters (3" to 6"), we utilize Gravity Die Casting or Low-Pressure Die Casting (LPDC). These methods fill the mold with minimal turbulence. The result is a high-density aluminum meter body with a fine grain structure, capable of withstanding the hydraulic stresses and pressure surges common in industrial pumping systems.

Step 3: T6 Heat Treatment (Stabilization)

Step 3: T6 Heat Treatment (Stabilization)

To prevent the meter body from warping over time, we perform a T6 Heat Treatment(Solution + Artificial Aging). This process relieves internal casting stresses and significantly increases the mechanical strength of the alloy. It ensures the pipe flow meter retains its precise shape even under fluctuating outdoor temperatures.

Step 4: Large-Format CNC Machining

Step 4: Large-Format CNC Machining

Precision is vital for accuracy. Using our large-gantry CNC centers, we machine the internal metering chamber and the flange sealing faces in a single setup. This guarantees strict perpendicularity between the flange and the bore, ensuring a perfect seal against the pipeline gaskets and preventing flange leaks.

Step 5: Surface Conversion Coating

Step 5: Surface Conversion Coating

Pipeline meters are often exposed to the elements. We apply a chemical conversion coating(such as Chromate) or Shot Blasting to prepare the surface. This enhances corrosion resistance and provides a durable base for painting, protecting the meter exterior from rust and weathering in harsh terminal environments.

Step 6: Hydrostatic Pressure Testing

Step 6: Hydrostatic Pressure Testing

Safety is our final check. Unlike smaller components, every pipe flow meter housing undergoes a Hydrostatic Pressure Test(water pressure test) at 1.5x the rated working pressure. This rigorously verifies the structural integrity of the casting, ensuring it is safe for high-pressure liquid transfer before it leaves our factory.

Why Choose Feiya for Your Industrial
Pipe Flow Meters?


Sourcing large-diameter pipe flow meters demands a manufacturing partner with industrial-scale capabilities. Feiya Machinery stands out as a preferred OEM supplier for global metering brands, combining heavy-duty production power with rigorous quality assurance and patented innovation.


Heavy-Duty Production Capacity

Heavy-Duty Production Capacity

Manufacturing 3-inch to 6-inch meter bodies requires more than standard equipment. Feiya operates large-gantry CNC machining centers specifically designed for heavy workpieces. This vertical integration allows us to cast and machine massive aluminum pipe flow meter housings in-house. Whether you need a single prototype for a refinery pilot or a bulk shipment of 500 units for a terminal upgrade, our scalable production lines ensure on-time delivery for large-scale infrastructure projects.


Advanced NDT & Hydrostatic Validation

Advanced NDT & Hydrostatic Validation

Safety is critical in pipeline infrastructure. We go beyond basic visual checks by employing Non-Destructive Testing (NDT). Our quality lab is equipped with X-Ray Real-Time Imaging to detect internal porosity inside thick flange sections without damaging the part. Furthermore, every pipe flow meter body undergoes rigorous hydrostatic pressure testing to verify its burst strength, ensuring reliable operation in high-pressure liquid transfer systems.


Patented R&D & Engineering Support

Patented R&D & Engineering Support

We are not just a foundry; we are innovators. Feiya holds multiple utility model patents related to die-casting mold structures and internal runner optimization. Our R&D team utilizes advanced fluid dynamics simulation to design low-pressure-drop meter bodies. By partnering with us, you gain access to proprietary manufacturing techniques that reduce turbulence and improve the measurement accuracy of your final metering assembly.


Full Traceability & Certification

Full Traceability & Certification

For industrial and custody transfer applications, traceability is mandatory. Feiya implements a strict material traceability system. From the molten aluminum ingot to the finished machined housing, every pipe flow meter carries a unique batch code linked to its Spectrometer analysis report and dimensional inspection data. This provides your end-users with total confidence in the metallurgical integrity of their equipment.

More About Us

our company

Feiya is a seasoned OEM manufacturer with 17 years of expertise in aluminum die casting. While renowned for our multi-platform motorcycle cylinder heads, our capabilities extend to automotive structural parts and precision fuel dispenser components. We provide complete end-to-end support—from mold development and high/low-pressure die casting to complex CNC machining and rigorous testing—delivering ready-to-assemble solutions for diverse industries.


LEARN MORE
manufacturing

Operating within a 17,000+ m² facility, Feiya integrates the complete aluminum manufacturing cycle—from in-house mold design and die casting (HPDC & LPDC) to precision CNC machining. Equipped with over 30 advanced casting units and 125+ CNC centers, we maintain an annual capacity exceeding 5,000 tons. This vertical integration allows us to strictly control production timelines and guarantee stable, scalable supply for your critical OEM projects.

Certifications

Quality is the core of our operations. Feiya is ISO 9001 certified and recognized as a National High-Tech Enterprise and a Technology-Based SME in Zhejiang. We adhere to rigorous quality management systems to monitor every process, from raw material inspection to final tolerance checks. These credentials reflect our commitment to technical innovation and prove our reliability as a trusted partner for global automotive and industrial clients.

FAQ: Engineering & Installing Pipe Flow Meters

Should I choose a "Positive Displacement" or "Turbine" meter for my pipeline?

It depends on the fluid. Inline turbine flow meters are great for low-viscosity fluids like water or solvents but require steady velocity. For high viscosity flow measurement (like crude oil or bitumen), a positive displacement flow meter(PD meter) is superior. Feiya manufactures heavy-duty aluminum housings for both types, but our large-bore PD meter bodies are specifically engineered to handle thick fluids with minimal pressure loss.

How do your meters handle "Water Hammer" (Hydraulic Shock)?

Water hammer effect occurs when a valve closes suddenly, sending a shockwave through the pipe. This can crack inferior castings. Feiya uses Low-Pressure Die Casting (LPDC) to produce high-density aluminum bodies with exceptional burst pressure strength. Our housings are tested to withstand hydraulic pressure spikes, protecting your metering investment from catastrophic line surges.

What are the "Straight Pipe Requirements" for installation?

Most meters require a specific length of straight upstream and downstream piping to smooth out the flow profile. Turbulence causes inaccuracy. However, Feiya designs flow meter bodies with integrated flow conditioners or optimized inlet geometries. This helps reduce the need for excessively long straight pipe runs, making installation easier in tight skid-mounted systems.

Can these meters maintain accuracy with "Flow Meter Calibration" over time?

Yes. Flow meter calibration drift is often caused by the housing deforming under pressure. Our T6 heat-treated aluminum bodies provide high dimensional stability. This ensures the internal clearance between the rotor and wall remains constant, allowing the meter to hold its calibration factor longer and meet strict custody transfer standards.

Do you offer flanges compatible with different "Pipeline Standards"?

Absolutely. We custom-machine the flange connections to match your existing infrastructure. Whether your pipeline uses ANSI 150 flanges(American standard), PN16 flanges(European DIN), or JIS standards, we machine the sealing faces with precise surface finish roughness(e.g., Ra 3.2-6.3) to ensure a leak-free seal with standard spiral-wound gaskets.

Learn More: Technical Insights on Pipe Flow Measurement

The Role of "Reynolds Number" in Meter Accuracy


Flow measurement isn't just about velocity; it's about flow profile. The Reynolds Number (Re) helps engineers predict whether fluid flow is laminar or turbulent.
·The Science:High viscosity fluids (like crude oil) tend to flow in smooth layers (Laminar), while low viscosity fluids (like gasoline) can swirl (Turbulent).
·The Impact:A stable Reynolds number is crucial for accuracy. Feiya’s pipe flow meter bodies are engineered with optimized inlet geometries to stabilize the flow profile quickly, ensuring consistent performance across a wide range of fluid viscosities, reducing the need for excessive flow conditioners.


Understanding "Delta P" (Pressure Drop) Curves


Every component in a pipeline creates resistance. This resistance is known as Differential Pressure or Delta P.
·Why it Matters:If the pressure drop across the meter is too high, it strains the pump and wastes energy.
·Our Optimization:Through CFD (Computational Fluid Dynamics)simulation, Feiya minimizes the internal roughness of our cast aluminum housings. This results in a superior flow coefficient (Cv), allowing fluids to pass through with minimal energy loss, which is critical for gravity-fed systems where pressure is limited.


Preventing "Flow Meter Cavitation"


Cavitation is the silent killer of aluminum pipe meters. It occurs when the fluid pressure drops below its vapor pressure, forming bubbles that implode and pit the metal surface.
·The Risk:This usually happens at high flow rates or when the meter is undersized.
·The Solution:Feiya recommends correct meter sizing based on maximum flow velocity. Furthermore, our hard-anodized internal surfaces provide an extra layer of protection against pitting corrosion caused by cavitation, ensuring the structural integrity of the housing remains intact for years.


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