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Steel-cased diaphragm gas meter
The independent metering movement design primarily consists of a diaphragm, a diaphragm housing, a unidirectional rotary valve distribution system, and a transmission mechanism. The steel casing has undergone a rigorous 500-hour salt-spray corrosion resistance test, ensuring it forms an airtight and fire-resistant protective enclosure. The metering movement’s diaphragm housing is precision-molded from corrosion-resistant engineering plastic. Advanced manufacturing techniques such as ultrasonic bonding and friction welding are employed to securely integrate components like the diaphragm cover bracket into a highly airtight assembly, significantly enhancing both reliability and long-term stability. The synthetic diaphragm is crafted by coating polyester fibers on both sides with adhesive, followed by vulcanization—a process that delivers exceptional flexural performance, enduring up to 3 million cycles without puncture. Additionally, the unit can withstand a total ventilation capacity of up to 4,500 m³ during extended lifespan testing. Meanwhile, the valve seat and valve cover are manufactured using phenolic thermoset plastic molded under high pressure, offering superior wear resistance, minimal water absorption, and consistently low friction coefficients over time. Finally, the transmission system features a unidirectional rotary distribution valve, which simplifies the mechanical structure while boosting overall reliability. To further ensure accuracy, the movement incorporates an anti-reverse device that prevents the counter from reversing unexpectedly.
Aluminum-Shell Diaphragm Gas Meter
The Hangyu Xing aluminum-cased series of base meters is designed for measuring gases such as liquefied petroleum gas, natural gas, city gas, and chemical gases. This product boasts several key features: compact size, elegant aesthetics, high sensitivity, exceptional accuracy in measurement, excellent stability, robust reliability, superior resistance to high pressure and corrosion, and an extended service life—all coupled with convenient maintenance. The upper housing and main body of the mechanical aluminum gas meter are both precision-molded from high-quality aluminum alloy, ensuring durability and performance. The exterior and interior surfaces of the housing undergo advanced anti-corrosion treatment using pure polyester powder coatings specifically formulated for outdoor applications, fully compliant with the stringent European RoHS environmental standards. Equipped with a 360-degree rotating valve mechanism, this meter minimizes friction while maintaining strong resistance against gas impurities and contaminants—a hallmark of its exceptional sensitivity. Additionally, cutting-edge visual processing technology ensures clear, easy-to-read meter readings at a glance. With a wide measurement range, the meter accurately captures flow rates spanning from a minimal 0.016 m³/h up to a maximum of 6 m³/h. The valve seat and cover are crafted from advanced synthetic resins like phenolic compounds, offering enhanced wear resistance and improved long-term stability. Imported from Europe, the diaphragm material exhibits outstanding quality, passing rigorous flexural testing over 3 million cycles. It also demonstrates remarkable cold-temperature resilience, performing reliably down to -30°C, with a projected lifespan exceeding 12 years. Thanks to its unique design, this gas meter delivers unparalleled precision, smooth operational curves, and reduced pressure loss—guaranteed to stay well below the internationally recognized limit of 200 Pa.
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