Flush Diaphragm, Hygienic Process Connection


Designed to be compact the DMP 331P achieves excellent rating performance in temperature and accuracy with reliable behavior and long term stability. A modular construction allows for different combinations of process connections, outputs and electrical connections. The DMP is suitable for media up to 300c with ATEX IS, and SIL2 options. It is ideal for viscus or thicker media. Diaphragm is available in stainless steel, Hastelloy and tantalum.

Pressure Range

0 - 40bar


4 … 20 mA / 2-wire

0 … 20 mA / 3-wire

0 … 10 V / 3-wire

Other versions upon request



Electrical Connection

Male and female plug ISO 4400

Male plug Binder series 723 (5-pin)

Cable outlet with PVC-cable

Male plug M12x1 (4-pin) / metal




Mechanical Connection

G1/2" with fl®ush

welded diaphragm (DIN 3852)

G3/4" with flush

welded diaphragm (DIN 3852)

G1" with flush

welded diaphragm (DIN 3852)

G1" DIN 3852 with rad. o-ring and flush diaphragm

G1/2" DIN 3852 with rad. o-ring and flush diaphragm

G 1" cone

Clamp DN 25 / 1" (DIN 32676)

Clamp DN 32 / 1 1/2" (DIN 32676)

Clamp DN 50 / 2" (DIN 32676)

Clamp 3/4" (DIN 32676) / 3A

Dairy pipe DN 50 (DIN 11851)

Dairy pipe DN 25 (DIN 11851)

Dairy pipe DN 40 (DIN 11851)

Varivent® DN 40/50 (PN ≤ 10 bar)

Wetted Parts

Pressure Port: flush

Housing: Stainless Steel

Diaphragm:  Stainless steel 316L,

Tantalum, Hastelloy ® C-276 (2.4819)


for clamp or dairy pipe Varivent ®: without

for inch thread - standard: FKM

for inch thread - option: FFKM




Diaphragm in Hastelloy® or Tantalum

Cooling element up to 300°C

Customized options available upon request

Application Examples

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