Special Features:

First end flange outside dia.: 5.062 in.Nom; second end flange outside dia.: 5.562 in.Nom; first end connection type: plain face flange; first end style designator: l1; first end flange thickness: 0.438 in.Nom; second end connection type: flange plain face; second end flange thickness: 0.438 in.Nom; second end connection face to center line distance: 4.000 in.Nom; end connection qty: 2; second end relationship w/first end: not identical;

Properties:

A valve consisting of a ported, dead weighted, hollow piston which moves vertically across the inlet passage within the valve body. Changes in the pressure controlled position of the piston vary the effective area of the ports exposed to the inlet flow in such a manner as to maintain a constant outlet line pressure. It has no seats or disk. For dead weight loaded pressure regulating valve of seat and disk construction, see also valve, regulating, fluid pressure.