state enterprise
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NOVATOR
ЛК-25, ЛК-32, ЛК-40, ЛТ-50
Industrial
Water Meters

The ЛК impeller water meter is designed to measure the volume of potable water as per ГОСТ 2874-82 (ЛК-DN Х) or hot water in the systems of hot water supply (ЛК-DN Г) which flows through it at a pressure up to 1 МPa.

The meter corresponds to the requirements of ДСТУ 3580-97 and Specifications ТУ В 33.2-22987900-012-2003.

The meter has protection against the action of a constant magnetic field which is created by a permanent magnet with a magnetic induction on the surface from 50 to 100 mТ, with a total area up to 60 cm2.

TECHNICAL DATA:

parameter value

parameter name

ЛК
25Х
ЛК
25Г
ЛК
32Х
ЛК
32Г
ЛК
40Х
ЛК
40Г
ЛК
50Х
ЛК
50Г
Diameter of nomi- nal bore (DN), mm 25 25 32 32 40 40 50 50
Class and operating position ВН АН ВН АН ВН АН ВН АН
Water temperature, °С 5 to 30 5 to 90 5 to 30 5 to 90 5 to 30 5 to 90 5 to 30 5 to 90
Nominal pressure, МPа 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,0
Water flow rates, m3/h:
- minimal (Qmin)
- transient (Qt)
- nominal (Qn)
- maximal (Qmax)

0,07
0,28
3,5
7,0

0,14
0,35
3,5
7,0

0,12
0,48
6,0
12,0

0,24
0,6
6,0
12,0

0,2
0,8
10,0
20,0

0,2
0,8
10,0
20,0

0,7
2,0
20,0
40,0

0,7
2,0
20,0
40,0
Gear ratio (К), m3/pulse 1,7436 х10-5 1,7436 х10-5 2,1923 х10-5 2,1923 х10-5 3,9317 х10-5 3,9317 х10-5 2,083 х10-5 2,083 х10-5
Counting mechanism capacity, m3 99999 99999 99999 99999 999999 999999 9999999 9999999
Least division value of counting mechanism, m3 0,0001 0,0001 0,0001 0,0001 0,001 0,001 0,01 0,01
Limit of admissible relative error, %, within flow rates
- from Qmin (inclusive) to Qt
- from Qt (inclusive) to Qmax
±5
±2
±5
±3
±5
±2
±5
±3
±5
±2
±5
±3
±5
±2
±5
±3
Sensitivity threshold, m3/hour, maximum 0,035 0,07 0,06 0,12 0,1 0,1 0,35 0,75
Pressure loss at Qmax, МPа, maximum 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Impeller suspension: ПАС agate jewels or ПКС corundum ones, pcs. 3 3 3 3 4 4 5 5
Average complete service life, years 12 12 12 12 12 12 12 12
Overall dimensions, mm, maximum:
- length
- length with mounting pipe connections
- width
- height

260
380
105
140

260
380
105
140

260
380
105
140

260
380
105
140

300
435
110
154

300
435
110
154

200
-
165
215

200
-
165
215
Nominal diameter of threaded connection G1 1/4 -B G1 1/4 -B G1 1/4 -B G1 1/4 -B G -2B G -2B Flange Flange
Mass of meter, kg, maximumMass of meter with mounting set, kg, maximum 3,6
4,0
3,6
4,0
3,6
4,0
3,6
4,0
5,5
7,3
5,5
7,3
15
-
15
-