PPH储罐是一种滚塑工艺加工而成的塑料容器，和不锈钢储罐相同都是装化工液体质料或成品质料的贮存容器，归于危化品储罐。企业出产制作危化品储罐要有相应的资质（全国工业产品出产许可证）、设备及专业施工人员，若短少任何一个制作出的危化品储罐都会有隐患存在，轻则财产损失，重则产生重大事故，所以危化品储罐是企业重中之重。

现今市场上呈现的危化品储罐原料有碳钢、铝、不锈钢、PPH、PVC、玻璃钢及复合资料等，之所以会呈现这么多种原料，是因每种介质对各种原料都会存在必定的腐蚀，不是说任何一种资料都能够盛装任何的介质，在选择危化品储罐时要选择腐蚀量比较小的原料作为该危化品储罐资料。企业在购买危化品储罐时，不只会考虑安全因素，还会在意价格的因素。

现在运用比较多的危化品储罐就是不锈钢储罐，但往往不锈钢储罐存在价格高或不锈钢产生腐蚀这2种状况，当企业碰到这类状况时就会考虑其他原料，而PPH储罐成为替代不锈钢储罐的推荐，不只因价格远低于不锈钢储罐，还有其方面。

为何PPH储罐能够替代不锈钢？比较2种危化品储罐，都是从机械强度、运用寿命、腐蚀参数、保护状况、运用温度等方面做对比。

PPH储罐出厂运用年限正常在8-10年左右，而不锈钢储罐比较多10-13年；不锈钢储罐机械强度高于PPH储罐，但危化品储罐一般为静态放置，不必高机械强度的储罐；

PPH储罐耐大多数酸、碱、有机物、混合液，只需保证运用温度在限定范围内，都不会存在腐蚀状况，而很多PPH储罐能够耐的介质对不锈钢会存在腐蚀（特种不锈钢在外）；保护方面PPH储罐保护简单，工具简易，厂家能够自行处理；危化品运用温度一般为常温，PPH储罐比较高运用温度能够到100℃。

PPH储罐已经成为化工、冶炼、稀土、矿山、颜料、印染、新资料、新能源、生物医药的必备设备，甚至有部分职业已经在一部分运用条件为常温常压的不锈钢反应釜改为PPH原料制作的反应釜。PPH储罐在比较近几年内会得到广泛应用。

PPH storage tank is a plastic container made of rolling plastic process, and stainless steel storage tank is the same as the storage container containing chemical liquid material or finished material, belongs to the dangerous chemical storage tank. Enterprises should have corresponding qualifications (national industrial product production license), equipment and professional construction personnel to produce dangerous chemical storage tanks. If any of the dangerous chemical storage tanks produced are short, there will be hidden dangers, including property losses or serious accidents. Therefore, dangerous chemical storage tanks are the top priority of enterprises.

There are carbon steel, aluminum, stainless steel, PPH, PVC, FRP and composite materials on the market today. The reason why there are so many kinds of raw materials is that each medium will have certain corrosion on all kinds of raw materials. It is not to say that any kind of material can contain any medium. In the selection of dangerous chemical storage tank to choose the least corrosion of the raw material as the dangerous chemical storage tank data. When buying dangerous chemical storage tanks, enterprises will not only consider safety factors, but also pay attention to price factors.

Most often used now for storage tank is stainless steel storage tank, but there often stainless steel tank price is high or stainless steel corrosion caused these two conditions, when the enterprise encounters this kind of situation will consider other raw materials, and PPH become first choice to replace stainless steel storage tank, storage tank is not only because the price is far lower than the stainless steel storage tank, and its aspects.

Why PPH tanks can replace stainless steel? The comparison of two kinds of dangerous chemical storage tanks is made from the aspects of mechanical strength, service life, corrosion parameters, protection status, service temperature and so on.

PPH storage tank factory service life is normally about 8-10 years, and stainless steel storage tank up to 10-13 years; The mechanical strength of stainless steel storage tank is higher than that of PPH storage tank, but the dangerous chemical storage tank is generally static placement, there is no need for high mechanical strength storage tank;

PPH tank resistance to most acid, alkali, organic matter, mixed liquid, only to ensure that the use of temperature in a limited range, there will be no corrosion, and many PPH tanks can withstand the medium of stainless steel will have corrosion (special stainless steel outside); Protection PPH tank protection is simple, simple tools, manufacturers can handle; The operating temperature of dangerous chemicals is generally normal temperature, and the highest operating temperature of PPH storage tank can reach 100℃.

PPH storage tank has become necessary equipment for chemical industry, smelting, rare earth, mining, pigment, printing and dyeing, new data, new energy, biological medicine, and even some occupations have changed the reaction kettle made of PPH raw materials in part of the stainless steel reaction kettle under normal temperature and pressure. PPH tanks will be widely used in the next few years.