medium-touched metal parts made of gunmetal, for sampling drinking water, determining microbiological and chemical parameters, flammable and rotatable stainless steel discharge elbow, valve body rotatable 360°, operating temperature max. 90 °C, PTFE seat seal, PN 16, suitable for horizontal and vertical installation, no dead space, lockable with triangular key, suitable for all fittings and screw connections with drain holes (DN 8 for DN 15-50, DN 10 for DN 65-150)