Description
Flow is always allowed to pass from A to B when pressure at A rises above the spring bias pressure and the poppet is pushed from the seat. The spring load is adjustable by turning the internal ring nut with a 4 mm allen wrench for LCA7 (5 mm allen wrench for LCA10): screwing down increases the spring load and increases the cracking pressure (in order to turn the Ring Nut, loosen first the little locking screw with a 1.5 mm Allen wrench; tighten it again once the spring load is adjusted). The valve is normally closed (checked) from B to A.
Steel body, zinc plated
