Water-DEZHI定壓罐可更換皮囊。這種定壓罐適用于現代安裝，并且適用于各種水泵的應用。他的實際有效容積比平常的壓力罐更大。膨脹罐可以長期保持壓力，在系統中發揮作用。這種膨脹罐可以更換不銹鋼法蘭。定壓罐：用于定壓系統、水泵、飲用水儲存、食品工業等。
Water-DEZHI: with a replaceable membrane. This line is ideal for every modern installation  and can be applied to any type of pump. The real volume of the pressure vessel is much  greater than normal that of normal tanks of the same dimension with smaller dimensions. A  compressor is not necessary since an air cushion， separated from the water by the membrane，  maintains a constant pressure in the tank. These tanks can also be provided with stainless steel flanges. These tanks for water booster system ，pumps， potable water storage.