阀门在管道运用中，起着非常广泛而重要的作用，一台阀门的好坏，直接影响着整套管道系统能否正常运行。阀门选型，材料选择，在工况中起着决定性的作用。下面就各种管道介质材料选型介绍附图。以避免厂家或使用单位在选型中产生错误，使阀门达到最佳的使用寿命。
注：以下表格仅作为参考，具体选型需工程师审核确定。
| 流 体 | 碳钢 | 铸铁 | 302或304不锈钢 | 316不锈钢 | 青铜 | 蒙乃尔合金 | 哈氏合金B | 哈氏合金C | 不锈钢﹟20 | 钛 | 钴－铬合金﹟6 | 416不锈钢 | 440C不锈钢 | 4月17日 |
| PH不锈钢 |
| 乙醛 | A | A | A | A | A | A | LL | A | A | LL | LL | A | A | A |
| 醋酸（无气的） | C | C | B | B | B | B | A | A | A | A | A | C | C | B |
| 醋酸（充气的） | C | C | A | A | A | A | A | A | A | A | A | C | C | B |
| 醋酸蒸气 | C | C | A | A | B | B | LL | A | B | A | A | C | C | B |
| 丙酮 | A | A | A | A | A | A | A | A | A | A | A | A | A | A |
| 乙炔 | A | A | A | A | LL | A | A | A | A | LL | A | A | A | A |
| 乙醇 | A | A | A | A | A | A | A | A | A | A | A | A | A | A |
| （流）酸铝 | C | C | A | A | B | B | A | A | A | A | LL | C | C | LL |
| 氨 | A | A | A | A | C | A | A | A | A | A | A | A | A | LL |
| 氯化铵 | C | C | B | B | B | B | A | A | A | A | B | C | C | LL |
| （宵）酸铵 | A | C | A | A | C | C | A | A | A | A | A | C | B | LL |
| 磷酸铵（一价的） | C | C | A | A | B | B | A | A | B | A | A | B | B | LL |
| 流酸铵 | C | C | B | A | B | A | A | A | A | A | A | C | C | LL |
| 亚流酸铵 | C | C | A | A | C | C | LL | A | A | A | A | B | B | LL |
| 苯胺 | C | C | A | A | C | B | A | A | A | A | A | C | C | LL |
| 沥青 | A | A | A | A | A | A | A | A | A | LL | A | A | A | A |
| 啤酒 | B | B | A | A | B | A | A | A | A | A | A | B | B | A |
| 苯 | A | A | A | A | A | A | A | A | A | A | A | A | A | A |
| 苯甲酸 | C | C | A | A | A | A | LL | A | A | A | LL | A | A | A |
| 硼酸 | C | C | A | A | A | A | A | A | A | A | A | B | B | LL |
| 丁烷 | A | A | A | A | A | A | A | A | A | LL | A | A | A | A |
符号：A—能够或正被成功应用
B—应用过程应注意
C—不能应用
LL—缺乏资料