Diaphragm safety valve for closed heating and solar installations, SM120
The SM120 diaphragm safety valve provides the last line of security for heating systems if the prescribed safety controls fail. In an emergency they must therefore have the capacity to discharge the whole contents of a cylinder in the form of steam. In normal system use they do not come into operation.
For hydronic heating systems to DIN 4751.
Approvals
Construction tested to TRD 721
Materials
Brass housing and spring bonnet with hot water resistant elastomer diaphragm and seal disc; high quality plastic venting knob
Media
water
Max. media temperature
120 oC
Port connection type
internal threads
SM120 with 2,5 bar set pressure for closed heating systems
Plant output
Type
50 kW (45.000 kcal/h)
SM120-1/2A
100 kW (90.000 kcal/h)
SM120-3/4A
200 kW (175.000 kcal/h)
SM120-1A
350 kW (300.000 kcal/h)
SM120-11/4A
SM120 with 3,0 bar set pressure for closed heating systems
