AIR VENTS
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AID %/C MTC RaP'd Initial Air Vent

Free Float for Venting Air No failure-prone levers or hinges. Only one moving part, the free float, eliminates concentrated wear and provides long, maintenance-free service life. Rapid Initial Air Vent VAS VA1/VA3/VA4/VA5 VS1A Automatic Air Vent VC2/VC3/VC4 VS1C Precision-ground float with three-point seating provides the tightest seal at high water level. Rapid Initial Air Vent VS1A Automatic Air Vent VS1C X-element for Venting Air & Gas from Steam Systems What is the X-element? A multi-diaphragm valve mechanism filled with a thermoliquid which opens and closes the vent at a temperature...

& Gas from Liquid Piping Air Vent Class Piping Direction Operating Pressure Range (MPaG) Maximum Operating Temperature (ºC) Maximum Venting Capacity (R/min) Body Material Rapid Initial Air Vent Cast Iron Special Fluids Cast Stainless Steel Special Fluids Cast Stainless Steel For standard air at 20 C under atmospheric pressure. Pressure differential is 0.1 MPa for rapid initial air vents, maximum operating pressure for automatic air vents. Piping Direction Operating Pressure Range (MPaG) Maximum Operating Temperature (ºC) Maximum Venting Capacity (R/min) Body Material Vertical Piping Cast...

For Liquid Rapid Initial Air Vent For Liquid Rapid Initial Air Vent VAS / VA Series / VS1A Used for venting large amounts of initial air or gas at system start-up. Once the valve closes after discharging initial air, it will not open again, even if air accumulates inside the product, until the internal pressure drops to near atmospheric pressure. Features Small and compact with simple construction Only one moving part, the free float, eliminates concentrate wear and provides long service life Precision-ground float and valve seat rubber contact assures seal tightness when vent is closed...

Special Fluids (Non-toxic, Non-flammable) ht Sealing ig T Features Achieves the tightest seal with 3-point seating Works in liquids with low specific gravity ( ≥ 0.8) High corrosion resistance due to stainless steel body and fluorine rubber (FPM) valve seat Useable with high pressures and temperatures Also functions as a vacuum breaker Simple construction and trouble free operation Only one moving part, the free float, eliminates concentrate wear and provides long service life Precision-ground float and valve seat rubber contact assures seal tightness when vent is closed Also functions as a...

For Liquid Automatic Air Vent Water Extremely compact size Auxiliary valve seat enables maintenance during operation Provides a tight seal, even at extremely low pressure (0.01 MPa for SA3 with no.3 orifice) Simple construction and trouble free operation Only one moving part, the free float, eliminates concentrate wear and provides long service life Free float and valve seat with rubber contact assures seal tightness when vent is closed Also functions as a vacuum breaker Suitable for small and narrow installation spaces Suitable for small air conditioning equipment Fan coil, radiator, etc....

Special Fluids (Non-toxic, Non-flammable) LA Series sS inles teel ta S Achieves the tightest seal with 3-point seating Works in liquids with low specific gravity ( ≥ 0.8) High corrosion resistance due to stainless steel body and fluorine rubber (FPM) valve seat Useable with high pressures and temperatures Also functions as a vacuum breaker Vents hot air up to just 22 ºC below saturated steam temperature Fail-open mechanism High heat resistance Compact with large venting capacity Also functions as a vacuum breaker Suitable for facilities and piping using special fluids Supply pipe, pump,...

Application Examples For Liquid Rapid Initial Air Vent Operation For Liquid Rapid Initial Air Vent VA Series Gas from inside the piping is very quickly pushed out around the float guide by liquid pressure. After venting, the float rises with the rising liquid level, closing the valve. Once closed, the valve will not reopen, even if gas enters the vent and the water level drops. When the pressure inside the piping drops to equal to or less than atmospheric pressure, the float drops, opening the vent. Air is allowed to enter to facilitate the drainage of liquid from the piping. Automatic Air...