... fluturation is decrease ,hence ,the balance effect is improved ,2.pumping unitThis series has the merit as following : simple structure ... 2CYJ3-1.5-4.5HY40-64-60304.51.59,144.55.5CYJ5-1.8-13HY114-107-7250131.86,9,12117. ... 0CYJ10-3-37HY320-213-120100373.0,2.5,2.16,9,123018.0CYJ12-4.8-73HF640-256-192120734 ... .8,4.2,3.65,7,94529.0CYJ14-4.8-73HF640-305- ...