Application
Diaphragm seals MD 50/51 with food law compliant screwed pipe connection for hygienic process separation of pressure measuring and control
units in pipes or tanks. For mounting to Bourdon tube pressure gauges, pressure transducers and pressure switches. For installation in hygienic
processes without dead spaces.
Food and beverages industry
Dairies
Beverage machines
Breweries
Description
All materials used are FDA-listed. The chemical seal and the measuring instrument are welded together, resulting in an inseparable single,
shock- and vibration-resistant unit that does not require additional external protection. The chemical seals are available with various nominal dia-
meters; due to their compact design, they are suitable for a wide range of applications.
Technical specifications
Process connection
Stainless steel 316 L
DIN 11851
DN 25, DN 32, DN 40, DN 50, DN 65
Surface roughness R A
≤ 0.8 µm
Diaphragm
Stainless steel 316 L
Instrument connection
Welded connection
Pressure transmission liquid
Paraffin oil (FM 09), FDA-listed
Pressure range 0.6 to 40 bar
Nominal pressure
PN 40, PN 25
Can be mounted to
■ Bourdon tube pressure gauges NG 50, 63, 80, 100, 160
■ Pressure transducers (DMU)
■ Pressure switches (DS)
Options
■ Other designs (Südmo, Guth)
■ Other materials
■ Electropolished
■ Cooling element
■ Capillary
■ Other pressure transmission liquids
■ Accessories such as union nuts and seals
■ Other process connections:
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MD 52-1: DIN 11864-1 GS or ÜM, design A/B, DN 25/80, H3
DIN 11853-1 GS or ÜM, DN 25/80, H3
MD 52-2: DIN 11864-2 NF or BF, design A/B, DN 25/80, H3
DIN 11853-2 NF or BF, DN 25/80, H3
MD 52-3 DIN 11864-3 NKS or BKS, design A/B, DN 25/80, H3
DIN 11853-3 NKS or BKS, DN 25/80, H3
MD 53: APV-RJT 1" to 3"
MD 54: IDF 1" to 3"
MD 55: APV-ISS 1" to 3"
