Dual Vacuum Pressure Valve

1. Core Advantages
-Main Material: Made of high-strength aluminum alloy, resistant to corrosion from gasoline, diesel and other fuels, resistant to outdoor sun, rain and temperature difference deformation, no rust or cracking after long-term use; built-in explosion-proof filter component filters external dust and water vapor during ventilation to protect the cleanliness of fuel in the tank.
- Precise Dual-Pressure Control: Preset positive pressure 9±1.0 IN.W.C and vacuum degree 8±2.0 IN.W.C(inches of water column). When the tank pressure exceeds the limit due to refueling/temperature change, it automatically opens for exhaust/intake, accurately maintaining the pressure balance in the tank, avoiding the problem of "vague pressure range and easy deformation of oil tanks" of ordinary breathing valves.

2. Key Parameters
- Positive Pressure Range: 9±1.0 IN.W.C (inches of water column, approximately 2249~2477 Pa).
- Vacuum Range: 8±2.0 IN.W.C (approximately 1999~2499 Pa).
- Medium Compatibility: Gasoline, diesel, kerosene and other fuels.
- Operating Temperature: -30℃ ~ +70℃ (adapting to the all-climate gas station environment).
- Explosion-Proof Rating: Meet the explosion-proof requirements of gas stations (blocking the passage of flames and preventing the explosion of oil and gas in the tank).

3. Application Scenarios
- Underground storage tanks in gas stations: Balance pressure fluctuations during refueling/unloading, prevent oil tanks from deforming, and reduce oil-gas leakage to protect the environment;
- Aboveground diesel/gasoline storage tanks: In outdoor environments, anti-corrosion + precise pressure control avoid overpressure in the tank caused by sun exposure or vacuum collapse of the tank caused by cooling;
-Oil depot transfer storage tanks: When receiving and dispatching oil frequently, stabilize the pressure in the tank, protect the tank structure, and filter intake impurities to ensure fuel cleanliness.