müller coax group

Certificated Valves

Tested valves are type-tested solenoid valves with two or three connections and two switching positions. These are safety shut-off valves in the basic closed position. The type examination ensures that, in the event of a drop in voltage, all valves seal closed within one second and thus reliably shut off the fuel supply (safety valve).

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SIL3 Safety Integrity Level DIN EN 61508

DVGW

The DVGW version includes valves that are only approved for gaseous fuels according to the DVGW G 260 (A) (only for gas burners). The nominal widths 15, 20, and 25 mm are available in the steel-nickel-coated version.

TÜV

The TÜV version is a valve that is only used for liquid fuels according to DIN EN ISO 23553-1 are approved (only for oil burners). The nominal widths 10, 15, 20, and 25 mm are available in the version galvanized steel.

ATEX

The ATEX valves are directly controlled solenoid valves with two or three connections and two switching positions. These EX valves are approved for ATEX Zone 1 Category 2 and are used wherever explosive gases and dusts are to be expected, but not in mining. The ATEX valves are available in a nominal width of 10 to 50 mm. The pressure range extends from vacuum to 500 bar medium pressure. The technical details can be found in the data sheets. The bandwidth of the flow factor (KV value) ranges from a few liters to 28 m³/h. The design is application-specific, delivery either in a socket or a flange version, but always with a junction box.

Overview technical data Certificated Valves

co-ax type orifice connection max. pressure range Kv value
MK / FK 15 DVGW
15 mm thread
flange
0 - 40 bar 6,0 m³/h
MK / FK 20 DVGW
20 mm thread
flange
0 - 40 bar 8,4 m³/h
MK / FK 25 DVGW
25 mm thread
flange
0 - 40 bar 13,0 m³/h
KBS 15 Ex
1,5 - 3 mm thread 0 - 500 bar 0,066 - 0,312 m³/h
KB 15 Ex
2 - 8 mm thread 0 - 100 bar 0,102 - 1,44 m³/h
MK 10 Ex
10 mm thread 0 - 16 bar 2,5 m³/h
MK / FK 15 Ex
15 mm thread
flange
0 - 16 bar
0 - 100 bar
6,0 m³/h
2,5 m³/h
MK / FK 20 Ex
20 mm thread
flange
0 - 100 bar 8,4 m³/h
MK / FK 25 Ex
25 mm thread
flange
0 - 100 bar 13,0 m³/h
MK / FK 32 Ex
32 mm thread
flange
0 - 64 bar 17,4 m³/h
MK / FK 40 Ex
40 mm thread
flange
0 - 64 bar 21,8 m³/h
MK / FK 50 Ex
50 mm thread
flange
0 - 16 bar 38,0 m³/h
MK 10 DR Ex
10 mm thread 0 - 16 bar 2,6 m³/h
MK / FK 15 DR Ex
15 mm thread
flange
0 - 40 bar 4,3 m³/h
MK / FK 20 DR Ex
20 mm thread
flange
0 - 40 bar 6,7 m³/h
MK / FK 25 DR Ex
25 mm thread
flange
0 - 40 bar 11,2 m³/h
MK / FK 32 DR Ex
32 mm thread
flange
0 - 40 bar 14,1 m³/h
MK / FK 40 DR Ex
40 mm thread
flange
0 - 16 bar 18,4 m³/h
MK / FK 50 DR Ex
50 mm thread
flange
0 - 16 bar 28,2 m³/h
MK 10 TÜV
10 mm thread 0 - 40 bar 2,5 m³/h
MK / FK 15 TÜV
15 mm thread
flange
0 - 40 bar 6,0 m³/h
MK / FK 20 TÜV
20 mm thread
flange
0 - 40 bar 8,4 m³/h
FK 25 TÜV
25 mm flange 0 - 40 bar 13,0 m³/h
MK / FK 15 DR TÜV
15 mm thread
flange
0 - 40 bar 4,3 m³/h
MK / FK 20 DR TÜV
20 mm thread
flange
0 - 40 bar 6,7 m³/h
FK 25 DR TÜV
25 mm flange 0 - 40 bar 11,2 m³/h
MK / FK 15 TÜV HT
15 mm thread
flange
0 - 40 bar 6,0 m³/h
MK / FK 25 TÜV HT
25 mm thread
flange
0 - 40 bar 11,2 m³/h