diff. press. contact pressure gauge DDM 25 | Wilo
Similar to figure

diff. press. contact pressure gauge DDM 25

Technical data
Tender text

Differential pressure contact pressure gauge for wall mounted installation with adjustable switchpoints for automatic switchover of maximum/minimum speed stages or of the maximum to minimum speed stages with Wilo single or double pumps with multi-speed motors.

Only in conjunction with the corresponding switchgears.

Differential pressure switch with differential pressure display, configurable maximum/minimum contacts, integrated pressure surge throttle.


Pressure gauging lines and 3-way pressure gauge taps must be procured by the customer

Shielded cable upon extension by customer:

  • Up to 100 m: 3x1.5 mm2
  • Up to 250 m: 3x2.5 mm2

Scope of delivery

  • Differential pressure contact pressure gauge DDM
  • 5 m shielded cable 4x0,75mm2(for connection to switchgears)
  • 2 self-cutting screw union connections in accordance with DIN 3862 Ms, for 6 mm pipe
  • 2 bracket self-cutting screw union connections R ⅛, for 6 mm pipe
  • 2 pipe connection bushing R ⅛ in accordance with DIN 2986 St, for 6 mm pipe
  • Installation and operating instructions
Technical data
Max. contact capacity 250 V / 1A AC
Max. operating voltage 250 V
Switching capacity max. 250 VA
Protection class IP54
Min. measurement range 0 bar
Max. measurement range 2.5 bar
Maximum pressure rating 16
Min. fluid temperature 0 °C
Max. fluid temperature 70 °C
Min. ambient temperature -10 °C
Max. ambient temperature 70 °C
Output function 2 x switching contact
Measuring accuracy ± 2.5 % of measurement range end value
Net weight, approx. 1.7 kg
Make Wilo
Item no. 110461290

Certificate REACH (Documents)

REACH regulation

Edition 2021-10
Page format 209.9 x 297.0 mm
Number of pages 2
PDF (162 KB)