The HERZ HerzCON 4600 Series is a pre-assembled valve station for connecting fan coil units and other terminal units. It combines pressure independent flow control, isolation, strainer and flushing in one compact brass body, and is supplied in a vapour-sealed insulation box ready for chilled water.
At its core is the HERZ 4006 SMART pressure independent control valve (PICV), which holds a constant flow to the coil whatever the system pressure does. Six models cover flows from 0.007 to 0.556 L/s: DN15 LF, MF, SF and HF, plus DN20 SF and HF, making it easy to match the station to the coil duty. The integrated bypass allows system flushing to BSRIA BG29/2011 without passing dirty water through the coil, and the HERZ strainer with 2512 drain valve can be flushed and cleaned in place.
The station suits both heating and chilled water, so one unit covers both applications. It has 65 mm pipe centre spacing. DN15 models have an Rp 1/2" inlet with a G 3/4" outlet, and DN20 models an Rp 3/4" inlet with a G 1" outlet. Drives, screw connections and compression adapters are ordered separately. For larger coils and AHUs, see the HerzCON DN25 and DN32.
FlowQuip supplies HERZ products in New Zealand. For project pricing, actuator selection or sizing help, contact our team.
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