选择NDV 隔膜的材质与选择阀体相同，除了哦啊吕耐药性外，还必须考虑反复开关的使用频次。
此外，由于隔膜阀体与阀体材质的组合不同，最高使用压力也不同，所以这一点也请确认。最好避免将聚四氟乙烯隔膜和涂软质类橡胶（编号33、35、36）组合。
特点
1) 隔膜大体分为橡胶及氟树脂2种。
2) 根据客户使用条件，可以从丰富的产品系列中选定价格合理的产品。
3) 标准产品系列：橡胶类（天然橡胶、氯丁二烯橡胶、异丁烯橡胶、丁腈橡胶、EPDM）
：氟树脂类（接触液体侧：NEW.PTFE/弹性橡胶
：EPDM两部分构成）
400型溢流型橡胶隔膜：
4-CR-015A 4-CR-020A 4-CR-025A 4-CR-040A 4-CR-050A 4-CR-065A 4-CR-080A 4-CR-100A 4-CR-125A 4-CR-150A 4-CR-200A 4-CR-250A 4-CR-300A 4-CR-350A 4-CR-400A 4-CR-450A 4-CR-500A
4-NR-015A 4-NR-020A 4-NR-025A 4-NR-040A 4-NR-050A 4-NR-065A 4-NR-080A 4-NR-100A 4-NR-125A 4-NR-150A 4-NR-200A 4-NR-250A 4-NR-300A 4-NR-350A 4-NR-400A 4-NR-450A 4-NR-500A
4-BG-015A 4-BG-020A 4-BG-025A 4-BG-040A 4-BG-050A 4-BG-065A 4-BG-080A 4-BG-100A 4-BG-125A 4-BG-150A 4-BG-200A 4-BG-250A 4-BG-300A 4-BG-350A 4-BG-400A 4-BG-450A 4-BG-500A
4-AB-015A 4-AB-020A 4-AB-025A 4-AB-040A 4-AB-050A 4-AB-065A 4-AB-080A 4-AB-100A 4-AB-125A 4-AB-150A 4-AB-200A 4-AB-250A 4-AB-300A 4-AB-350A 4-AB-400A 4-AB-450A 4-AB-500A
4-UG-015A 4-UG-020A 4-UG-025A 4-UG-040A 4-UG-050A 4-UG-065A 4-UG-080A 4-UG-100A 4-UG-125A 4-UG-150A 4-UG-200A 4-UG-250A 4-UG-300A 4-UG-350A 4-UG-400A 4-UG-450A 4-UG-500A
4-EP-015A 4-EP-020A 4-EP-025A 4-EP-040A 4-EP-050A 4-EP-065A 4-EP-080A 4-EP-100A 4-EP-125A 4-EP-150A 4-EP-200A 4-EP-250A 4-EP-300A 4-EP-350A 4-EP-400A 4-EP-450A 4-EP-500A
400型溢流型氟树脂隔膜
4-TX/CE-015A 4-TX/CE-020A 4-TX/CE-025A 4-TX/CE-040A 4-TX/CE-050A 4-TX/CE-065A 4-TX/CE-080A 4-TX/CE-100A
4-TX/CX-015A 4-TX/CX-020A 4-TX/CX-025A 4-TX/CX-040A 4-TX/CX-050A 4-TX/CX-065A 4-TX/CX-080A 4-TX/CX-100A
4-TF/CX-125A 4-TF/CX-150A 4-TF/CX-200A 4-TF/CX-250A 4-TF/CX-300A
4-TF/CE-125A 4-TF/CE-150A 4-TF/CE-200A 4-TF/CE-250A 4-TF/CE-300A
500型直线型橡胶隔膜
5-CR-015A 5-CR-020A 5-CR-025A 5-CR-050A 5-CR-050A 5-CR-065A 5-CR-080A 5-CR-100A 5-CR-125A 5-CR-150A 5-CR-200A 5-CR-250A 5-CR-300A 5-CR-350A 5-CR-500A 5-CR-550A 5-CR-500A
5-NR-015A 5-NR-020A 5-NR-025A 5-NR-050A 5-NR-050A 5-NR-065A 5-NR-080A 5-NR-100A 5-NR-125A 5-NR-150A 5-NR-200A 5-NR-250A 5-NR-300A 5-NR-350A 5-NR-500A 5-NR-550A 5-NR-500A
5-BG-015A 5-BG-020A 5-BG-025A 5-BG-050A 5-BG-050A 5-BG-065A 5-BG-080A 5-BG-100A 5-BG-125A 5-BG-150A 5-BG-200A 5-BG-250A 5-BG-300A 5-BG-350A 5-BG-500A 5-BG-550A 5-BG-500A
5-AB-015A 5-AB-020A 5-AB-025A 5-AB-050A 5-AB-050A 5-AB-065A 5-AB-080A 5-AB-100A 5-AB-125A 5-AB-150A 5-AB-200A 5-AB-250A 5-AB-300A 5-AB-350A 5-AB-500A 5-AB-550A 5-AB-500A
5-UG-015A 5-UG-020A 5-UG-025A 5-UG-050A 5-UG-050A 5-UG-065A 5-UG-080A 5-UG-100A 5-UG-125A 5-UG-150A 5-UG-200A 5-UG-250A 5-UG-300A 5-UG-350A 5-UG-500A 5-UG-550A 5-UG-500A
5-EP-015A 5-EP-020A 5-EP-025A 5-EP-050A 5-EP-050A 5-EP-065A 5-EP-080A 5-EP-100A 5-EP-125A 5-EP-150A 5-EP-200A 5-EP-250A 5-EP-300A 5-EP-350A 5-EP-500A 5-EP-550A 5-EP-500A