Water with max of 60% Glycol
not suitable for steam
The cartridges used in VC-Series valves determine the Cv (kv) rating and flow characteristic of a valve body. Replacing the cartridge rebuilds the valve to original factory specifications. 1000-series cartridges fit all 2-way VC bodies. 6000-series cartridges fit all 3-way VC bodies. For trouble-free operation of the product, good installation practice must include initial system flushing, chemical water treatment, and the use of a 50 micron (or finer) system side stream filter(s). Remove all filters before flushing. Do not use boiler additives, solder flux and wetted materials which are petroleum based or contain mineral oil, hydrocarbons, or ethylene glycol acetate. Compounds which can be used, with minimum 50% water dilution, are diethylene glycol, ethylene glycol, and propylene glycol (antifreeze solutions).