I am checking flow on a trane chiller. we added a chilled water coil and a good bit of piping and now cant maintain chw temp..I have chw supply comes out of chiller barrel at 45# goes through system back to pump out of pump at 57# through flowsetter and back to barrel.i have a pump curve trying to check gpm. is ok to use those numbers or should i be directly across pump???.also anybody have a performance chart for a taco mpv030 valve.