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Woltman Type Water Meter

Home » Products » Woltman Type Water Meter » Combination Cold Water Meter

  • Combination Cold Water Meter

  • Product Description
  • This type of water meter can be used for a remote reading transmission system as equipped with a built-in sensor.

    WORKING CONDITION

    ◆Water temperature: ≤50℃

    ◆Water pressure:≤1.6Mpa

  • Model : LXF-50~150

This type of water meter can be used for a remote reading transmission system as equipped with a built-in sensor.

APPLICATION:  

Measuring the  volume of cold water passing through the pipeline.  


FEATURES:  

◆Wide measuring range: From Qmin of the small caliber water meter to Qmax of the large caliber water meter

◆ As a dry meter, deposits in the register are avoided. This ensures a clear reading in long term service.

◆The main register may rotate more than 360 degrees for easily reading in any position.

◆ Low head loss.

◆ Lower starting flow.

◆ Novel structure, simple maintenance.   

◆Can be equipped with reed switch option.

◆Particularly suited in commercial, institutional places of assembly and facilities with fluctuating usage and flow rates.

 

.WORKING PRINCIPLE

◆A changeover spring valve diverts flow to the appropriate meter, opening or closing according to pressure variations by changes in flow rate.

◆At low flow rate, the changeover valve closes and only the small meter in operation 2 water flows through the bypass meter, and the usage is recorded on its register.

◆When the flow rate increases, pressure is exerted on the large meter, until the flow rate reaches approximately one half the capacity of the bypass meter.

At this point, the drop in pressure causes the valve to open 1, and water flows through both the main meter and bypass meter, and the overall consumption is read by combining the main and bypass registers.

◆When flow is decreasing, the process in reversed. The valve is closed and water flows through the small meter.

CONSTRUCTION

◆The meter model LXF-50-200 combines a large caliber water meter (model LXLC-B) on the main line, a small water mete (model LXSG) on the bypass line, and a flow changeover valve.

Annotation: LXLC-B

removable element woltman water meter.

                 LXSG multi-jet dry type vane wheel water meter

or(LXSY) multi-jet liquid  type vane wheel water meter.

WORKING CONDITION

◆Water temperature: ≤50℃

◆Water pressure:≤1.6Mpa

 

MAXIMUM PERMISSIBLE ERROR
◆ In the lower zone from Qmin inclusive up to but excluding Qt is±5%b)

In the upper zone from Qt inclusive up to and including Qs is ±2%

 

INDICATION

◆Cubic meter(m3and U.S. gallon (USG) for selecting

 

INSTALLATION

◆The meter must be installed with the direction of the flow as indicated by the arrow cast in the meter body.

◆A horizontal position with the register face upwards is recommended.

◆The meter must have 10 diameters straight pipe ahead of the meter and 5 diameters straight pipe after to insure proper flow through the meter.

◆The valves must be installed in the front and the back of the water meter.

 

ATTACHMENT

With every water meter, there will be two flange gaskets.

  If you need the connecting flanges(two pieces), please specially request that.

Combination Cold Water Meter supplier

 

No.

Name

Qty

No.

Name

Qty

No.

Name

Qty

1

Body(main water meter

1

9

Adapting flange

1

17

Bolt

2

2

LXLC-B except for the body

1

10

Coupling gasket 2

1

18

Bypass meter (LXSC-E)

1

3

Flat washer

8

11

Bolt

2

19

Nut

3

4

Bolt

8

12

Flat washer

2

20

Coupling 2

1

5

Flange o-ring

1

13

Street elbow 2

1

21

Coupling o-ring

1

6

Changeover vale

1

14

Coupling gasket

3

22

Street elbow 1 with non-return valve

1

7

Spring washer

8

15

Connecting plate

1

23

Coupling 1

1

8

Nut

8

16

Spring washer

2

24

Coupling gasket 1

1

 

 

MAIN TECHNICAL DATA


Type  

Size(mm)  

qs
Max Flow

qp
Nominal Flow 

qt
Transitional Flow  

qmin
Min. Flow  

Min.
 Reading  

Max. 
Reading  

m3/h 

m3  

LXF-50 

50mmx15mm 

30 

15 

0.12 

0.03

0.0001

999999+99999

LXF-80

80mmx20mm

80

40

0.20

0.05

0.0001

999999+99999

LXF-100

100mmx20mm

120

60

0.20

0.05

0.0001

999999+99999

LXF-150

150mmx40mm

300

150

0.80

0.20

0.001

999999+99999

 

 

 

 

 

 

DIMENSIONS AND WEIGHTS

 

Type

Size 
DN

Length
L

Width
W

Height
H

Height
G

Connecting flange

Weight 
kg

mm

D
Outer dia.

D1
Bolt cirle dia.

Connecting Bolt 
nxM

LXF-50

50mmx15mm

280

268

256

360

165

125

4xM16

20

LXF-65

65mmx20mm

370

305

266

400

185

145

4xM16

26

LXF-80

80mmx20mm

370

310

276

400

200

160

8XM16

27.5

LXF-100

100mmx20mm

370

320

286

400

220

180

8XM16

33

LXF-150

150mmx40mm

500

445

345

500

285

240

8XM20

64

LXF-200

200mmx50mm

560

525

375

500

340

295

8XM20

114.5

 

Combination Cold Water Meter price

If you have any questions, please send an e-mail inquiry

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