Check valve with anti-pollution protection, internal thread type EA291NF 6/4 inch 149B2214

Non-return valve with check function is an element of the installation that protects against backflow of the medium, thereby protecting the installation and devices from contamination. Model EA291NF, made of brass with a sealing unit made of POM (polyacetal) and NBR (nitrile) gasket, is designed for use in installations with clean liquids and gases. Its construction allows for installation in any position, which facilitates installation even in hard-to-reach places.

This particular model, with a nominal diameter of 1 1/2 inch (DN40) and a connection length 1 of 120 mm, is distinguished by the presence of two control holes with caps - one for checking the tightness of the closure and one for draining the installation riser. This allows for regular checking of the valve's correct