HERZ DRV

Screw-down model,body made of cast iron GJL 250,according to EN 1561,flange according to EN 1092,PN 16,PN 25 ,blue coating.Brass upper part,screwed, with non –rising spindle, spindle seal by means of double O-Ring. Presetting by limitation of valve lift and inside spindle. Pre-setting step is shown on the digital display in the hand wheel window.Two quick measuring valves are mounted next to hand wheel. Four bores for draining fittings, closed with screw plugs 3/8 (DN10).

Herz