Rapid Initial Air Vents
Specialized air vents to remove initial air from pipelines carrying liquids.
Operating Pressure Range: 0.01 - 2.1 MPaG
Operating Temperature Range: 0 - 220 °C
• Max. Operating Pressure: 1.0 MPaG
• Min. Operating Pressure: 0.01 MPaG
• Max. Operating Temperature: 100°C
• Body: Cast Iron
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.
The grounded float and rubber valve seat prevent leakage (VAS series, VA series).
The -precision-grounded float and 3-point seating prevent leakage (VS1A series).
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.
Water lifting pumps, fire-extinguishing equipment, water transport lines, water storage tanks, hot water tanks, holding tanks for liquids.
Water, hot water – VAS series, VA series
Water, hot water, other liquid other than toxic or flamable– VS1A series