Sanitary Diaphragm Seal

Model 8213
With tri-clamp connection

Availability: Upon Request - OEM Orders

The production process of Items marked as "Upon Request..." starts after receiving the order and usually needs 3 weeks or more.

Seal-Mate group of diaphragm seals come between the pressure measuring instrument and some medias which can damage the instrument or be harmful if they get directly in touch with the instrument. In many industrial processes, it happens a lot that the media cannot or should not get into direct contact with the instrument. Sometimes that is for the sake of keeping the instrument work properly as the media is too viscous and might easily clog the process connections, and sometimes it is for hygienic purposes.

The flexible metal diaphragm of InstruMate seals is made of SS316L by default and the space between this flexible diaphragm and the instrument process connection is filled with a filling fluid, chosen in best interest of where the instrument is going to be installed. So the intended pressure is transmitted via the flexible diaphragm to the filling fluid and then via the filling fluid to the pressure instrument.

InstruMate diaphragm seals are vacuum protected and also not sensitive to sudden sharp increase in pressure.

InstruMate sanitary diaphragm seal model 8213 is attached and detached to pipes by use of a clamp very easily. As a result, using InstruMate 8213 diaphragm seal with sterile connection speeds up the cleaning process of the seal. If Hygienic feature is going to be maintained in food or pharmaceutical industry, then InstruMate 8213 is a great choice because of its fast and easy removal from the plant.

C.I.P or S.I.P services for cleaning and sterilization process are easy to handle when you use InstruMate 8213 sanitary diaphragm seal.

C.I.P. = Cleaned In Place
S.I.P. = Steamed In Place


  • Food, beverage, and brewery industries
  • Milk and dairy industry
  • Pastes, powders, and crystalizing media
  • Pharmaceutical industry

Special Features

  • Excellent for frequent cleaning
  • Fast and easy install/uninstall


Diaphragm: Standard version: SS316L
Option: Hastelloy C276
Body of the Diaphragm Seal: Standard version: SS316L
Option: SS316L
Maximum Permissible Process Temperature in °C: Standard version: Option: 400 400
Female Instrument Connection: Standard version: Option: ½ NPT ¼ NPT, ½ BSP, ¼ BSP, M20x1.5, M12x1.5
Process Connection Per: * DIN 32676 * ISO 2852
Pipes standard Per: * DIN 11866 row B and ISO 1127 row 1 * DIN 11866 row C or ASME BPE * BS4825 part 3 and O.D. tube * DIN 11866 row A and DIN 11850 row 2 * ISO 2037 and BS 4825 part 1


Data sheets

Diaphragm seal with sterile connection model 8213
  • EN

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