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Diaphragm seals

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Diaphragm seal with threaded connection
Flush diaphragm or with protective plate

Model
DS551.36

Application

● For highly viscous or crystallising media

● For hard and abrasive media

● Screed and concrete pumps

● Mining, tunnelling and overburden haulage

● Hygienic applications


Special features

● Threaded connection for screwing in directly

● Flush diaphragm with compact dimensions

● High pressures for the process industry

● Version with protective plate for increased wear resistance

● Vacuum measuring ranges

Specifications

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Process connection

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Further material combinations for special process temperatures and process connections on request


Material combinations for versions with diaphragm

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Material combinations for versions with protective plate

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1)The maximum permissible process temperature of the diaphragm seal system is limited by the joining method, by the system fill fluid and by the measuring instrument.

Dimensions mm[in]
Flush diaphragm seal with diaphragm

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Dimensions in mm [in]
Version: Diaphragm seal with protective plate

Due to the high abrasion resistance of the protective plate, this version is particularly suitable for pressure measurements with abrasive media. The shock-resistant and abrasion-resistant protective plate increases the resilience of the diaphragm seal system. The protective plate is dimension sufficiently thickly that it can withstand abrasion by the medium for a long time.


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Diaphragm seal:

Diaphragm seal model / Process connection (process connection standard, thread, nominal pressure rating) / Material (upper body of diaphragm seal, diaphragm or protective plate with sealing) / Flushing connection (plug screw) / Connection to the measuring instrument / Level of cleanliness of wetted parts / Origin of wetted parts / Certificates


Diaphragm seal system:

Diaphragm seal model / Process connection (process connection standard, thread, nominal pressure rating) / Material (upper body of diaphragm seal, diaphragm or protective plate with sealing) / Flushing connection (plug screw) / Pressure measuring instrument model (per data sheet) / Mounting (direct mounting, cooling element, capillary) / min. and max. process temperature / min. and max. ambient temperature / Vacuum service / System fill fluid / Certificates / Height difference / Level of cleanliness of wetted parts / Origin of wetted parts / Instrument mounting bracket