3-port ball valve, internal thread, PN40, DN32, kvs 16 - SIEMENS : VBI61.32-16

DN = Nominal size H = Total height of the control device, plus minimum distance to the wall or ceiling for mounting, connection, operation, maintenance, etc. H1 = Overall dimension from the middle of the pipe for fitting the control device (top view)

Given the nature of this product, it is recommended to have it installed by a professional.