End Of Line Stack Vent Valve Model 900

Series 900 End Of Line Vent Valve is designed to prevent the escape of light and of crude by maintaining pressure in the storage tank. The end of line vent valve is installed directly on the end of the vent line exhaust. The 900 has both pressure and vacuum relief capability.

The pressure vacuum vent valve opens when the system pressure or vacuum exceeds the set pressure of the valve. When over pressure occurs the weighted pallet lifts, breaking the seal between the seat and pallet. allowing vapors ta pass through the valve orifice and relieving the pressure or vacuum buildup. The valve closes once the tank pressure goes below the setting point.

Features & Benefits

• All internal working parts are made from a “PPS” (Polyphenylene Sulfide) plastic material for superior corrosion resistance which resists freezing and sticking with operating ranges from -45° C to 260° C
• Multiple setting options by adding additional pressure weights

• Viton gaskets far “Sour Gas” and corrosive service applications
• Non-Corrosive coating option far extremely harsh environments
• Certified flow capacities in accordance with API

Valve Setting Range

• Model number: Model 920 – 930 – 940
• Sizes Available: 2″(50mm), 3″(80mm), 4″(100mm).
• Pressure: 4.3 to 69.0 mbar
• Vacuum: 1.7 mbar

Model 900 End of Line Vent Valve Parts