Hengesbach In-Line Seals DM-769

In-Line Seals DM-769
In-Line Seals DM-769

Hengesbach is a company from Deutschland. And Hengesbach develops, manufactures and distributes innovative measuring technology for applications in production processes where functionality, reliability and accuracy of the instruments are of highest priority even under extreme process conditions. This modern understanding of value creation of a medium-sized company already has a long tradition with us. Based on many years of experience, we know that the success and strategic security of the company is the result of a lasting and uncompromising appreciation of all involved stakeholders – and this in a global context.

Hengesbach develop and produce measuring instruments with a clear focus on the worldwide active dairy, food and beverage industry. Especially within these applications, highest hygienic requirements for the production of safe products are essential prerequisites. The product of Hengesbach Such as level measuring, flow measuring, pressure measuring, temperature measuring, analytical measurement, evaluation. One of the product that come from Hengesbach is pressure measuring.

In-Line Seals DM-769

For application-orientated solutions in pressure measuring technology, Hengesbach offers a wide range of mechanical devices and electronic pressure and differential pressure transducers based on modern sensor technology, as well as specific diaphragm seals with corresponding accessories.

In-Line Seals DM-769 is a product from hengesbach. DM-769 is a product that comes from the categories of pressure measuring. This product is a diaphragm tube of stainless steel. And mounting to manometer, pressure switches and pressure transmitter.


  • diaphragm tube of stainless steel 1.4435 (316L)
  • flange- and cellular type for direct integration into the process pipe
  • measuring of highly viscous media, dead-zone free
  • mounting to manometer, pressure switches and pressure transmitter
  • special fitting length optional possible
  • residues-free cleaning of measuring point

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General information

Process connection Norm Sealing Face Nom. Size Model
Cellular type: DIN EN PN 16 – 100
DIN EN 1092-1
Form B2,
PN 160-400:
DIN 2526
Form E DN 20…100 RDM 7690
16.5 RF DN 1″…4″ RDM 7695
Flange type: DIN EN DIN EN 1092-1
Form B1 DN20…100 RDM 7690.1
16.5 RF DN 1″…4″ RDM 7695.1
Basic body stainless steel 1.4435 (316L)
Separating diaphragm stainless steel 1.4435 (316L), other materials on request
Nominal pressure PN 16 to 400 bar und 150 to 2500 lb/sg.in., dependent on model and size, other nominal
Minimum pressure range Pressure gauge: 0-1 bar or 0-2.5 bar to PN, dependent on model and nominal size
Instrument connection standard: G ½ (½” BSP), DIN EN 837-1
Filling liquid silikon oil (FA1), others filling liquid on request
Separating diaphragm stainless steel 1.4435 (316L), electropolished
Installation – via cooling element
– via capillary line (please specify the length by ordering)
Certificates material certificate 3.1, EN 10204 for medium contacted parts

Download Data Sheet: In-Line Seals DM-769

Ref: hengesbach.com