Hydro-DEZHI定压罐适用于泵、饮用水，有一个固定的饮用水丁基膜。这些定压罐是由碳钢制成。膜被设计为了避免水在罐中停滞而造成任何细菌的生长。定压罐：用于定压系统、水泵、防水锤等。

Hydro-DEZHI: is a line of compact tanks for pumps, potable water, with a fixed potable water butyl membrane. These tanks are made of carbon steel without welding that eliminates any sharp cutting edges inside the tank. The shape of the membrane is designed to avoid any water stagnation and therefore the growth of any bacteria. These tanks are used with water booster system, pumps and as anti-water hammer.

Extra-DEZHI膨胀罐适用于现代安装，配备丁基橡胶和不锈钢的法兰。这种膨胀罐适用于饮用水使用、热饮用水、加热、锅炉、谁锤防护、水泵等。
Extra-DEZHI: is ideal for every modem installation These tanks equip with butyl membrane, stainless steel flange (fittings).These Expansion vessel for potable water use, hot potable water, heating, boilers, water hammer arrester, pumps.

Ultra-DEZHI采用丁基膜是绝对无毒和适用于饮用水。这种膨胀罐容积利用率高，采用可更换的膜，压力罐用于防火系统和水密封系统。
Ultra-DEZHI with butyl membrane are absolutely non-toxic an potable drinking. This model of tanks,  also for their reduced volumes, are replaceable membrane pressure tanks for fire protection systems and water pressurizing systems.

Water-DEZHI定压罐可更换皮囊。这种定压罐适用于现代安装，并且适用于各种水泵的应用。他的实际有效容积比平常的压力罐更大。膨胀罐可以长期保持压力，在系统中发挥作用。这种膨胀罐可以更换不锈钢法兰。定压罐：用于定压系统、水泵、饮用水储存、食品工业等。
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.

Inox-DEZHI完全是不锈钢做的。他们尤其适用于系统锅炉、板式换热器的卫生热水。对于高卫生标准完全适用，而且产品生命时间几乎是无限的。压力罐还可以用于预防水锤减少噪声。
Inox-DEZHI: are entirely made of stainless. They are especially used for systems that produce sanitary hot water produced by a boiler or from plate heat exchangers. They are excellent choices for situations that require high hygienic standards and a product life time that is practically limitless. The membrane is absolutely non-toxic and potable drinking and food grade. This model of tanks is particularly useful for anti-water hammer effecting water systems, preventing vibrations or noises. They can also be used with reduced flow pumps.