News - Vohon Petrochemical

Global Shift to HDPE+EVOH Composite Pipe in Gas Station Pipeline Retrofitting — Market Trends and Technical Drivers

Global Shift to HDPE+EVOH Composite Pipe in Gas Station Pipeline Retrofitting — Market Trends and Technical Drivers Gas station operators worldwide are increasingly replacing traditional steel and single-layer HDPE piping systems with multi-layer composite pipes for underground fuel handling. This article examines the key technical advantages driving this shift, with a focus on HDPE+EVOH composite […]

Global Shift to HDPE+EVOH Composite Pipe in Gas Station Pipeline Retrofitting — Market Trends and Technical Drivers Read More »

Proper Welding Temperature and Cooling Time for HDPE+EVOH Composite Pipe in Gas Station Fuel Systems

Why Vacuum Loss Happens — And How Pipe Quality Fixes It Stage III vapor recovery systems at retail fuel stations rely on a carefully balanced vacuum loop to capture gasoline vapors during refueling and return them to the underground storage tank. When the system cannot maintain target vacuum levels, vapor emissions rise and the station

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Troubleshooting Vacuum Loss in Stage III Vapor Recovery — How Ai Yuan Composite Pipe Quality Affects System Performance

Troubleshooting Vacuum Loss in Stage III Vapor Recovery — How Ai Yuan Composite Pipe Quality Affects System Performance Read More »

Why Pipe Material Matters in Stage III Vapor Recovery Systems

Why Pipe Material Matters in Stage III Vapor Recovery Systems A gas station’s Stage III vapor recovery system is only as strong as its weakest component. While dispensers, nozzles, and vacuum pumps get the most attention, the underground piping network that carries gasoline vapors from the vehicle fuel tank back to the storage tank is

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5 Common Mistakes When Installing Underground Composite Pipes at Fuel Stations

5 Common Mistakes When Installing Underground Composite Pipes at Fuel Stations Installing underground composite pipelines at fuel stations is a task that demands precision. Even experienced crews can overlook details that lead to leaks, pressure drops, or premature pipe failure. At Luoyang Wohong Petrochemical (brand: Ai Yuan), we have supplied HDPE-based composite pipes for hundreds

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