Products Steam Traps Mechanical Free Float® (low pressure) Free Float® (med/high pres.) Free Float® for Main Lines With Bypass Valve Large Capacity Float Traps Clean Steam Traps Thermodynamic Disc-Type Thermostatic Thermostatic Temperature Control Clean Steam Traps Steam Trap Stations Condensate Recovery PowerTrap® (Mechanical Pump with Built-in Trap) PowerTrap® (Mechanical Pump) Pressure Reducing Valves With built-in Separator and Trap (for process use) for Process Steam Compact for Steam for Vacuum Steam for Air Without Separator and Trap for Steam Compact for Steam for Vacuum Steam for Air Direct Acting for Steam for Air Safety Valves Control Valves, Controllers Multi-Control Valves with Built-in Separator and Trap for Steam for Vacuum Steam Multi-Control Valves for Steam for Vacuum Steam Control Valves Pneumatic Self-operated Temperature Control Surplussing Valves for Steam Controllers Setpoint MC Vortex Flowmeters Filters Separators for Steam (Built-in Trap) for Air (Built-in Trap) without Built-in Trap Valves Stainless Steel Ball Valves Lock Release Valves Globe Valves Bellows Sealed Valves Bypass Blow Valves Check Valves Strainers, Sight Glasses and Other Y-strainers Sight Glasses Automatic Non-freeze Valves Air Vents Rapid Initial Air Vents Automatic Air Vents Super Compact Automatic Air Vents Air Vents for Steam Air and Drain Traps Free Float® Air Traps Air Traps for High Viscosity Condensate Free Float® Drain Traps Peripheral Equipment Manifolds Steam Condensing Heat Exchanger High-Temp. Waste Water Heat Exchanger Flash Vessels Steam Compressor Maintenance Instruments Pocket-size Tester Engineering Software Instantaneous Water Heater More Information Steam Theory Document Search Technical Documents Product Solutions CAD 3D Archived Documents Operation Animations Success Stories System Solutions FAQ TLV ToolBox - For iOS and Android Email Magazine Discover steam engineering tips in our bi-monthly newsletter. Sign up now Rapid Initial Air Vents Specialized air vents to remove initial air from pipelines carrying liquids. Operating Pressure Range: 0.1 - 10 bargOperating Temperature Range: 0 - 100 °C Air Vents Pamphlet (1930 KB) Rapid Initial Air Vents for Liquid Processes (VAS & VA Series) Air Vent (Rapid Startup for Water Systems) (Animation) Product Details VA Specifications Manual • Max. Operating Pressure: 10 barg• Min. Operating Pressure: 0.1 barg• Max. Operating Temperature: 100°C• Body: Cast Iron VAS Specifications Manual • Max. Operating Pressure: 10 barg• Min. Operating Pressure: 0.1 barg• Max. Operating Temperature: 100°C• Body: Cast Iron Always check the specification PDFs for the exact product specification available in your region. Benefits and Features Automated Initial Air Discharge The large-size valve seat rapidly discharges initial air. The float responds with great sensitivity to condensate levels, automatically closing the valve and thereby eliminating the need for manual labor. Long Service Life The float is the only moving part. Simple design, with no hinges or levers. Tight Sealing The grounded float and rubber valve seat prevent leakage (VAS series). Operation Animations Application Areas For use where the discharge of large quantities of initial air is required. Once the valve closes, it remains closed even if air enters. Also install an automatic air vent if it is necessary to discharge air during operation. Main Applications Water lifting pumps, water transport lines, water storage tanks, hot water tanks, holding tanks for liquids. Water, hot water – VAS series, VA series Water, hot water and other non-toxic or non-flammable liquids – VS1A series
