Technical Data MNK - Zenner

Cold water meters Hot water meters Cartridge meters
Technical data for the models MNK, MNK-N, MNK-I-N, MNK-RP, MNK-RP-N, MNK-RP-I-N, MTK, MTK-N, MTK-I-N
Permanent flow Q3 m³/h 2,5 2,5 2,5 2,5 2,5 4 4 4 6,3
Nominal diameter DN mm 15 15 15 25 20 20 25 20 25
Inch 1/2 1/2 1/2 1 3/4 3/4 1 3/4 1
Overall length without connectors L2 mm 110/115/145 165 170 175 190 220 175 190 175
Overall length with connectors L1 mm 225/230/260 250 255 293 288 318 293 288 293
Thread meter G x B D1 Inch 3/4 3/4 3/4 1 1/4 1 1 1 1/4 1 1 1/4
Thread connector R x D2 Inch 1/2 1/2 1/2 1 3/4 3/4 1 3/4 1
Measuring range horizontally ** Q3/Q1 Ratio R200H R200H R200H R200H R200H R200H R200H R200H R200H
Measuring range vertically ** Q3/Q1 Ratio R50V R50V R50V R50V R50V R80V R80V R80V R80V
Overload flow Q4 m³/h 3,125 3,125 3,125 3,125 3,125 5 5 5 7,875
Minimum flow Q1 l/h 13 13 13 13 13 20 20 20 32
Starting flow min l 4 4 4 5 5 5 5 5 5
Display range min l 0,05 0,05 0,05 0,05 0,05 0,05 0,05 0,05 0,05
max m³ 99.999 99.999 99.999 99.999 99.999 99.999 99.999 99.999 99.999
Maximum temperature °C 30 30 30 30 30 30 30 30 30
Operating pressure, max. PN bar 16 16 16 16 16 16 16 16 16
Head loss at Q4 bar 0,6 0,6 0,6 0,3 0,6 1 1 1 0,6
Pulse value L/Imp 10/100 10/100 10/100 10/100 10/100 10/100 10/100 10/100 10/100
Height H1k* mm 120 120 120 120 115 120 120 115 120
H1m* mm 125 125 125 125 120 125 125 120 125
H2 mm 35 35 35 40 32 40 40 32 40
H3 mm 15 15 15 15 15 15 15 15 15
Width B mm 95 95 95 95 95 95 95 95 100
Weight kg 1,4 1,4 1,4 1,7 1,8 1,9 1,8 1,8 1,8
k* plastic glass
m* mineral glass
** Standard version R80H / R40V
error %
Q1 = minimum flow
Q2 = transitional flow
Q3 = permanent flow
Q4 = Overload flow
Q1
Q2 Q3 Q4
Typical accuracy curve
12a

Technical data for the models MNK, MNK-N, MNK-I-N, MNK-RP, MNK-RP-N, MNK-RP-I-N, MTK, MTK-N, MTK-I-N
Permanent flow Q3 m³/h 6,3 10 10 16 16 16 16
Nominal diameter DN mm 25 25 32 40 50 50 50
Inch 1 1 1 1/4 1 1/2 2 - -
Overall length without connectors L2 mm 260 260 260 300 300 270 300
Overall length with connectors L1 mm 378 378 378 438 438 - -
Thread meter G x B D1 Inch 1 1/4 1 1/4 1 1/2 2 2 1/2 Flansch Flansch
Thread connector R x D2 Inch 1 1 1 1/4 1 1/2 2 - -
Measuring range horizontally ** Q3/Q1 Ratio R200H R200H R200H R200H R200H R200H R200H
Measuring range vertically ** Q3/Q1 Ratio R80V R80V R80V R63V R63V R63V R63V
Overload flow Q4 m³/h 7,875 12,5 12,5 20 20 20 20
Minimum flow Q1 l/h 32 50 50 80 80 80 80
Starting flow min l 10 10 10 20 20 20 20
Display range min l 0,05 0,05 0,05 0,05 0,05 0,05 0,05
max m³ 99.999 99.999 99.999 99.999 99.999 99.999 99.999
Maximum temperature °C 30 30 30 30 30 30 30
Operating pressure, max. PN bar 16 16 16 16 16 16 16
Head loss at Q4 bar 0,6 1 1 1 1 1 1
Pulse value L/Imp 10/100 10/100 10/100 10/100 10/100 10/100 10/100
Height H1k* mm 140 140 140 - - - -
H1m* mm 145 145 145 170 190 190 190
H2 mm 50 50 50 60 75 75 75
H3 mm 15 15 15 15 15 15 15
Width B mm 100 100 100 131 165 165 165
Weight kg 2,7 2,7 2,7 5,4 5,4 12,4 12,4
k* plastic glass
m* mineral glass
** Standard version R80H / R40V
pressure loss [bar]
Q3 2,5 m³/h
Q3 4,0 m³/h
Q3 6,3 m³/h, 10 m³/h
Q4 16
flow rate [m³/h]
Head loss curves
13a