Bonyan Tajhiz Jonoub, materials engineering company

Oil Field & Petrochemical Supplies

Steam, Air, Water Equipments

Steam, Air, Water



Diaphragm Seal

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diaphragm seals, fitted with pressure gauges, pressure transducers, pressure transmitters etc., are recognised and valued internationally for the most difficult of measuring tasks. By using diaphragm seals, the measuring instruments can be used at extreme temperatures from -90 to +400 C and with aggressive, corrosive, heterogeneous, abrasive, highly viscous or toxic media. The optimal diaphragm seal designs, materials and filling media are available for each application.

Model 990.10

Diaphragm seal with threaded connection

Threaded design


Model 990.34

Threaded Process Connection, Diaphragm Seals

Welded Design


Model 990.36

Threaded Process Connection, Small Diaphragm Seals

With Flush Diaphragm


Model 990.40

Threaded connection, diaphragm seal

Threaded design, large working volume


Model 990.31

Threaded Process Connection, Diaphragm Seals

Plastic Design


Models 970.10, 970.11, 970.12

Diaphragm Probe Seals

Male Thread or Male Running Nut or Female Union Nut


Model 990.27

Diaphragm seal with flange connection

With flush diaphragm


Model 990.28

Flanged Process Connection, Diaphragm Seals

Cell-Type (Sandwich) Seals


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