In the absence of air pressure, the spring returns the plug and holds it closed against the seat.
For 3A applications the 62B Air Blow Check Valve must be used with the incorporated filter disc and suitable air to be in contact with the product.
Air usage: Estimated air volume usage will depend upon the pipeline vessel to be evacuated. The 62B valve is rated up to 1600 Ft3/hour (45 m3/hour) air flow.
3-A certified
Key Applications
Spring-loaded plug-style check for air-entry into product pipelines
Evacuation of process pipelines for product recovery and/or drainage
Air agitation of product in pipelines, tanks and other equipment
Air drying of process lines and equipment for corrosion resistance/formation of protective oxide films
