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OEM Aluminum Fuel Flow Meter Manufacturer

OEM Aluminum Fuel Flow Meter
Manufacturer

Feiya Machinery is a specialized OEM manufacturer of aluminum fuel flow meters and dispenser components. We serve global fuel equipment brands by providing high-density die-cast housings and precision-machined metering chambers.
we prioritize dimensional stability and metering accuracy. Leveraging 125 CNC machining centers and advanced Shell Core Technology, we produce complex aluminum bodies that ensure smooth piston movement and a hermetic seal. From gasoline to diesel applications, Feiya delivers leak-proof, corrosion-resistant components ready for your assembly line.



Home > Fuel Flow Meter

Our Oil Flow Meter
Manufacturing Advantages

Micron-Level Metering Accuracy

Micron-Level Metering Accuracy

The accuracy of a flow meter hinges entirely on the geometry of its metering chamber. Utilizing 125 CNC machining centers, Feiya performs precision boring to achieve cylinder wall tolerances within 0.005mm. This micron-level precision eliminates fluid "blow-by" and ensures smooth piston movement, guaranteeing reliable metering accuracy and stability across the entire flow range.
Zero leakage flange accuracy

Zero leakage flange accuracy

In fuel dispensing, a porous casting is a critical safety hazard. We employ optimized Low-Pressure Die Casting (LPDC) to create high-density, non-porous aluminum bodies. Furthermore, every single unit undergoes rigorous 100% pneumatic pressure testing before shipment, guaranteeing a hermetic seal that meets strict explosion-proof standards and prevents dangerous fuel leakage.
Complex Internal Channel Formation

Complex Internal Channel Formation

Flow meters often require intricate internal runners that cannot be machined from the outside. Feiya leverages 27 dedicated Shell Core Machines using high-precision resin sand cores to cast these complex hollow structures as a single piece. This results in seamless internal passages with smooth surfaces, reducing pressure drop and eliminating potential leak points associated with multi-part assemblies.
Cosmetic & Functional Surface Finishing

Superior Chemical & Wear Resistance

Exposed to aggressive fuels like gasoline and ethanol, flow meters demand superior material stability. We cast exclusively with verified ADC12 or A356 aluminum alloys, strictly controlled by a Spectrometer for exact composition. We also offer surface treatments like Hard Anodizing to enhance corrosion resistance and wear hardness, ensuring long-term durability in harsh station environments.

How We Manufacture Your Oil
Flow Measurement

Creating a fuel flow meter that maintains accuracy over millions of liters requires an uncompromising manufacturing standard. At Feiya, we combine 27 Shell Core Machines with advanced machining to produce aluminum flow meter housings that meet strict metrology and safety standards.

Step 1: DFM & Porosity Simulation

Step 1: DFM & Porosity Simulation

Before tooling, we optimize the design for manufacturability. Our engineers perform mold flow analysis to predict solidification patterns. This allows us to place overflows strategically, pushing air pockets away from the critical metering chamber walls to ensure a dense, defect-free structure

Step 2: Precision Shell Core Making

Step 2: Precision Shell Core Making

Most positive displacement meter parts feature complex internal channels. We utilize our fleet of 27 Shell Core Machines to produce high-strength resin sand cores. This technology enables us to cast intricate inlet and outlet ports as a single piece, ensuring smooth internal surfaces for consistent fluid dynamics.

Step 3: High-Density Casting (LPDC)

Step 3: High-Density Casting (LPDC)

Safety is paramount in petrol dispenser parts. We typically employ Low-Pressure Die Casting (LPDC) for meter bodies. By controlling the filling speed from the bottom up, we achieve a laminar fill that eliminates turbulence, resulting in a leak-proof casting capable of withstanding high operating pressures.

Step 4: CNC Precision Boring

Step 4: CNC Precision Boring

Using our 125 CNC centers, we perform high-precision CNC boring on the cylinder walls. We maintain strict cylindricity and roundness (often within 0.005mm) to prevent "fluid blow-by" between the piston and the wall, which is essential for maintaining metering accuracy.

Step 5: Surface Treatment & Impregnation

Step 5: Surface Treatment & Impregnation

To resist the corrosive nature of modern fuels (including ethanol blends), we offer advanced surface treatments. If required, parts undergo vacuum impregnation to seal any microscopic pores. We also provide anodizing services to harden the surface and protect the aluminum alloy from oxidation.

Step 6: Pressure Testing & Validation

Step 6: Pressure Testing & Validation

We treat every unit as a safety-critical component. Each fuel metering unit undergoes 100% pneumatic pressure testing to guarantee zero leakage. Finally, we use CMMs to verify the geometric tolerances of the crank holes and flanges, ensuring the part is ready for your final assembly line.

Custom Fuel Flow Meter
Manufacturing Services

Feiya specializes in the production of custom fuel flow meter components tailored to your specific metrology requirements. Whether you are engineering a classic 4-piston meter or a modern, compact oval gear meter, we adapt our manufacturing process to match your technical drawings. By leveraging 27 shell core machines for complex internal routing and 125 CNC centers for micron-level boring, we deliver OEM metering units that ensure precise fluid measurement and seamless integration into your fuel dispenser systems

Customization Parameter Feiya Manufacturing Standard & Options
Supported Meter Types Piston / Displacement Meters:High-precision cylinder boring capabilities. Gear / Vane Meters:Complex internal cavities via Shell Core casting.
Material Selection Aluminum Alloys:ADC12, A356, ZL101. (Verified by Spectrometer for fuel compatibility and pressure tightness)
Casting Technology LPDC (Low Pressure):For high-density, leak-proof meter bodies. HPDC (High Pressure):For cost-effective, high-volume covers and external housings.
Bore Precision Cylinder Tolerance:≤ 0.005mm (Roundness/Cylindricity). Ensures zero "blow-by" fluid leakage between piston and wall.
Connection Sizes Flexible Ports:Custom threading (NPT/BSP) and flange designs ranging from 3/4" to 2"(or custom sizes) based on flow rate needs.
Surface Engineering Leak Testing:Custom pneumatic test pressures (e.g., 3-6 bar) based on your safety protocols.

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: Manufacturing Fuel Dispenser Metering Units

Can you manufacture components for different flow measurement technologies?

Yes. Beyond standard piston designs, we have experience casting housings for volumetric fuel meters and wobble plate meters. Our flexible manufacturing lines can adapt to the specific internal geometry required for these rotary motion meters, ensuring smooth operation whether the design uses nutating discs or sliding vanes.

How do you extend the service life of the meter against fuel contaminants?

Fuel often contains grit that causes wear. We address this by optimizing the piston wear reduction. We use specific aluminum heat treatments and can machine grooves for Teflon/PTFE seals if your design requires them. This engineering approach ensures long-term metrology stability, preventing the meter from seizing up due to particulate friction

Do your castings meet safety standards for hazardous environments?

Absolutely. We understand that our parts go into explosion-proof equipment. We adhere to strict casting protocols that align with ATEX-compliant casting standards for density and wall thickness. This ensures the hydraulic dispenser components can safely contain volatile fluids without risking rupture under thermal expansion or pressure spikes.

Are your flow meters suitable for heavy-duty industrial applications?

Yes. For high-flow truck stops or industrial depots, we manufacture larger high-flow rate meter bodies(e.g., 1.5" to 2" ports). These units are designed with reinforced ribs to handle higher throughputs, making them ideal for bulk fuel transfer systems where standard service station meters would be insufficient.

Learn More: Technical Insights on Oil Flow Gauges

The Mechanics of Volumetric Measurement


Understanding the heart of oil flow measurement devices is key to selecting the right component. Unlike turbine meters that infer speed, a positive displacement gauge physically compartmentalizes the fluid.
·Cyclic Volume:The accuracy of the gauge depends on its cyclic volume—the exact amount of fluid moved per rotation. Feiya’s CNC boring ensures that the cylinder dimensions are precise, ensuring that the mechanical counter drive receives accurate rotation data.
·Mechanism Types:We cast housings for various internal mechanisms, including nutating disc meters and lobed impeller meters. Each requires specific internal casting geometries to prevent fluid bypass without creating excessive internal friction.


Handling Viscosity: Diesel vs. Petrol


A major challenge in fluid transfer metering is viscosity. The thickness of the fluid changes how it interacts with the aluminum body.
·High-Viscosity Fluid Metering:For thicker fluids like diesel or lubricants, pressure drop becomes a concern. We optimize the casting's inlet and outlet ports to maximize flow laminarization.
·Fluid Viscosity Impact:Changes in temperature change viscosity. Our aluminum gauge housings are designed with specific thermal expansion coefficients to maintain consistent clearance between the measuring element and the wall, ensuring diesel flow monitoring remains accurate in both winter and summer.


Diagnosing Common "Gauge" Failures


Why do flow gauges fail in the field? Often, it is not the gears, but the housing stability. ·Flow Meter Seizure:This usually happens when the housing warps or corrodes. We use high-purity alloys to prevent oxidation buildup that narrows the chamber.
·Calibration Shift:If the casting relaxes or stretches under pressure (creep), the meter calibration standards are lost. Our stress-relieved castings(via proper cooling cycles) ensure the oil flow indicator retains its geometric integrity for years, preventing the need for frequent recalibration.


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