Product: Taco 418 Hy-Vent 1/2" Female x 3/4" Male Float Style Automatic Air Vent, 150 psi
Brand: Taco
Color: metal
Attached to the boiler or used throughout the system, Taco vents automatically purge unwanted air from any hydronic installation, allowing the system to run more efficiently.
Installed on water or stream radiators the Taco automatic coin vent is the ideal air purging device
The coin vent features special hygroscopic cellulose discs in the valve body, when dry the discs allow air to be released from the system
Once all the air is purged the discs would then come in contact with system water, where upon they would swell to create a positive shut-off
This continuous cycle prevents the radiators from becoming air bound and speeds the process of filling the system
The vent can also be manually shut-off by means of an internal ball check

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