I suggest you get hold of your local B&G rep and ask for a copy of the "Large Chilled Water System Manual" - there is an excellent section on sizing expansion tanks.
Although this may seem like an endorsement, B&G has spent a considerable amount of time and resources educating the industry and...
My opinion is that the popularity of VFD's will increase in direct proportion to increases in energy costs. No matter which way you look at it, throttling a pump is akin to driving your car with one foot on the brake! This is not to say that throttling valves will not maintain a presence in the...
Are you sure this is not an issue of lead free vs leaded bronze? I remeber something about chlorine reacting with lead free bronze and leaching the zinc ions causing pitting and eventual deterioration of the lead free bronze impellers. Ask your manufacturer about alpha nickel aluminum bronze or...
