Diaphragm seal with threaded connection
Welded design
Model
DS551.34
Applications
● For aggressive, hot, corrosive, environmentally hazardous or toxic media
● Oil and gas industry, chemical and petrochemical industries
● Water treatment
● Versatile in application
Special features
● Process connection with thread
● Version with internal diaphragm, diaphragm seal parts fully welded
● Large selection of process connections and materials
● Flushing connections optionally available
● High pressures up to 1,000 bar [14,500 psi] can be achieved
Specification
Process connection
Other process connections on request
Permissible nominal pressure (PN)
The permissible nominal pressure (PN) of the diaphragm seal system results from the selected material and depends on the effective diaphragm diameter of the diaphragm seal (see table below). In addition, the permissible pressure/temperature rating must be taken into account. For the relevant pressure-temperature diagrams.
The maximum permissible process temperature of the diaphragm seal system is also limited by the joining method, by the system fill fluid and by the measuring instrument.
Pressure-temperature diagram
Effective diameter of diaphragm Mb 52 mm
Pressure-temperature diagram
Effective diameter of diaphragm Mb 40 mm
Pressure-temperature diagram
Effective diameter of diaphragm Mb 29 mm
Pressure-temperature diagram
Effective diameter of diaphragm Mb 22 mm
Diaphragm seal, model DS551.34
Effective diameter of diaphragm Mb 52 mm
Diaphragm seal, model DS551 .34
Effective diameter of diaphragm Mb 40 mm
Diaphragm seal, model DS551.34
Effective diameter of diaphragm Mb 29 mm
Diaphragm seal, model DS551 .34
Effective diameter of diaphragm Mb 22 mm
Diaphragm seal:
Diaphragm seal model / Process connection (process connection standard, thread, nominal pressure rating) / Material (upper body, diaphragm, lower body) / 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, diaphragm, lower body) / 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 / Pressure transmission medium / Certificates / Height difference / Level of cleanliness of wetted parts / Origin of wetted parts / Instrument mounting bracket
-
Diaphragm seal with threaded connection Flush diaphragm or with protective plate
-
Diaphragm seal with flange connection With internal diaphragm
-
Flushing ring For flange-connection diaphragm seals
-
Diaphragm seal with clamp connection
-
Diaphragm seal with threaded connection
-
Diaphragm seal with sterile connection with union nut
-
Diaphragm seal with flang connection with flush diaphragm
-
Screwed Process Connection, Diaphragm Seals Welded Design, Economic Design
