Batch Meter

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  • The name :

    Manual batch control water meter

  • Product Description
  • .High quality material for most reliable service
    .Safely in water temperature up to 90℃;
    .Large dial plate for easy reading
    .Glass wiper for cleaning
    .Horizontal or Vertical installation with possibility of the dial plate position

  • Model : BATCH CONTROL


NWM BATCH CONTROL WATER METER is commonly used in the textile, tanning, paper, potting and chemical industries, also used for mixer truck, for controlling batched volume of the water passing through the pipe accurately, has the sizes from Dn32 to Dn50 designed by NWM.

Characteristics:

NWM BATCH CONTROL WATER METER was made of high quality material for most reliable service;
Can be used safely in water temperature up to 90℃;
Large dial plate for easy reading;
Glass wiper for cleaning;
Horizontal or Vertical installation with possibility of the dial plate position as

Horizontal Installation

Vertical Installation

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Manual reset the reading to zero with the possibility of the handle position as:

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Dial Plate in LITERS OR both GALLONS and LITERS:

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Dimension:

Size

Dn25

Dn32

Dn40

Dn50

Dn50-Flange

Length

L

260

260

170

200

200

Body Thread

D

G1-1/4B

G1-1/2B

G2B

G2-1/2B

X

Meter Height

H

186

186

193

193

238

Working Height

H1

325

325

332

340

377

Width

W

210.5

210.5

210.5

210.5

229

*Dn50 with possibility of the Thread ends and the Flange ends.

Size

mm

Dn25

Dn32

Dn40

Dn50

Qmax

m3/h

7

12

20

30

Qn

m3/h

3,5

6

10

15

Qt

l/h

280

480

800

1200

Daily delivery

m3

35

60

200

300

Dial reading

liters

100-200-500

100-200-500-1000-2000-5000

500-1000-2000-5000

Max permission error:
From Qt including Qt to Qmax: +/-3% for hot water and +/-2% for cold water.
Selecting the proper size of meter:
For selecting the proper size should follow the table with maximum flow rate
(Q) in m3/h and the maximum daily delivery (E) in m3 as:

 

3.6V/t<Q

V=batch volume of the water in liters

T=time per batch in seconds

Q=maximum flow rate in m3/h



For maximum service life should follow:

 

nhV/1000<E

n=number of batch per hour

h=number of working hour

V=batch volume of the water in liters

E=maximum delivery in m3


For keeping the accuracy, the flow rate (Q) should be not less than Qt.

The flow rate is easily calculate by the water was collected in a calibration tank for a measured period of time. For example, 15 liters are collected in 30 seconds, the flow rate will be: 3600/30*15=1800l/h.
For  selecting  the  dial  reading,  the  maximum  dial  reading  should  always exceed the highest expected batch volume.

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

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