Diaphragm seal with flange connection
With flush diaphragm
Model
DS560.27
Applications
● Aggressive, highly viscous, crystallising or hot media
● Process industry
● Machine building and automation
Special features
● Flange with flush welded diaphragm
● Common standards and nominal widths available
● Wide variety of different materials and material combinations
Installation example
Model DSS560.27 with directly mounted pressure gauge
Diaphragm seal system
Diaphragm seal systems are mounted to existing connections, which are welded to a pipeline, a process reactor or a tank. A diaphragm made of the appropriate material separates the medium from the measuring instrument. The internal space between the diaphragm and the measuring instrument is completely filled with a system fill fluid.
Measuring element
The pressure of the medium is transferred via the elastic diaphragm to the system fill fluid and then on to the measuring instrument. A diaphragm seal and its components are perfectly matched to each other to ensure a reliable measurement.
Mounting type
Mounting of the diaphragm seal to the measuring instruments may be made via a direct connection, for high temperatures via a cooling element or via a flexible capillary.
Specifications
Version | Diaphragm seal with flange connection |
Other versions | ■ Per NACE MR0175 / ISO 15156, use in H2S-containing environments in oil and gas production ■ Per NACE MR0103 / ISO 17945, metals resistant to hydrogen sulphide stress cracking ■ With pre-volume deflagration flame arrester for mounting to zone 0 (EPL Ga) |
Pressure range | The maximum pressure range depends on the selection of the process connection and instrument |
Connection to the instrument | ■ Axial connection adapter for welded connection ■ Suitable connection adapter to the instrument (e.g. G ½, G ¼, ½ NPT or ¼ NPT) |
Mounting type | ■ Direct mounting ■ Capillary ■ Heat sink |
Vacuum service | ■ Basic service ■ Advanced service ■ Premium service |
Other process connections on request
Further materials for special process temperatures on request.
Dimensions in mm [in]
Flange connection in line with DIN EN 1092-1, form B
Further dimensions and higher nominal pressures on request
Dimensions in mm [in]
Flange connection in line with ASME B16.5-2017, RF
Flange connection in line with GOST 33259, type B
Further dimensions and higher nominal pressures on request
Flange connection in line with API 6A, ring-joint groove
Further dimensions and higher nominal pressures on request
Flange connection in line with JIS B 2220, RF
Further dimensions and higher nominal pressures on request
Diaphragm seal:
Diaphragm seal model / Process connection (standard, flange size, nominal pressure, sealing face) / Material combination (upper body of diaphragm seal, wetted parts) / Level of cleanliness of wetted parts / Origin of wetted parts / Design per NACE / Connection to the measuring instrument / Certificates / Flushing ring
Diaphragm seal system:
Diaphragm seal model / Pressure measuring instrument model (per data sheet) / Mounting (direct mounting, cooling element, capillary) / Material combination (upper body of diaphragm seal, wetted parts) / 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 / Design per NACE / Diaphragm seal for mounting to zone 0 / Instrument mounting bracket / Process connection (standard, flange size, nominal pressure, sealing face) / Flushing ring
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Diaphragm seal with threaded connection Flush diaphragm or with protective plate
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Diaphragm seal with flange connection With internal diaphragm
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Flushing ring For flange-connection diaphragm seals
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Diaphragm seal with clamp connection
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Diaphragm seal with threaded connection
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Diaphragm seal with threaded connection Welded design
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Diaphragm seal with sterile connection with union nut
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Screwed Process Connection, Diaphragm Seals Welded Design, Economic Design
