Content - Brass Series M

Messing M Program (metric)
SO 4....

The universal material for unlimited possibilities

  • Unions, valves, couplings
  • Ø 2 - 35 mm
  • max. 250 bar
  • -196°C to +180°C
  • for non-aggressive to slightly aggressive air, gases, liquids and oils in a non-aggressive environment, e.g. in machine building (lubrication, cooling etc.)

Characteristics, speciality
- easy and fast to install
- compact size
- extensive range
- many combination possibilities
M = connection nut with metric thread
(M and G are not interchangeable)

Brass CW 617N (CuZn40Pb2), surface ist pickled

Nominal pressure PN
see product tables (safety factor 4)

Temperature range
-196°C to+180°C

Leak rate with helium
10-8 mbar • l/s
(when professionally assembed; see installation instructions and tubes)

up to 10-4 mbar, higher values are possible

Tubes to use
Tubes of plastic and seamless copper tubes (esp. EN 12449/1057) with clean smooth surface. Tolerance of ouside diameter ± 0.1 mm. Further materials on demand.


Adaptor stem, male thread
British Standard Pipe (BSP) and metric fine thread DIN 3852; tapered form C; thread with sealing form B. NPT-thread according to ANSI B1.20.1.

Pressure coefficient % of PN