Do all double seals have to be alike?

Do double seals always need to use a lot of water?

The ZMT ZND double/tandem seal is the next generation double seal.

Unlike the competition, the ZND seal is designed to be universal in its use, to fit a broad range of applications, and be easily configured to any customer's most difficult applications.

The ZND seal concept uses interchangable inner cartridges, for ease of change in seal faces and elastomer materials. The ZND seal's engineered high design limits allow it to fit any application. This unique design allows for maximum customer flexibility in seal use and minimal inventory to solve the most difficult applications.


The ZMT ZND double/tandem seal is the next generation double seal, because the Inner Cartridge can be changed to do the following:

Repair is simple, convenient, and inexpensive.

Four different Inner Cartridges to meet your needs:

a) Two Double/Tandem seals: ZND and the ZDT- shortened ZND       seal.

b) Two Single seals: ZDN for common applications, and for high
     temperature applications the -  ZH seal.