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Pumps and Water Meters Asahi

Water Meter DN

Water Meter DN

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Water Meter DN

Due to its hermetically capsuled counter mechanism the ASAHI COSMOS-T meter,a varuant of the proed ASAHI COSMOS-WP meter, is specially suited to operate at places of high humidity and changing ambient temperature.
Tranmission gear and roller counter are integrated within one unit and air and waterright encased into a metal capsule saled by a crash-safe glass. A magnetic coupling transmits the turbin rotation into the capsule to the counter mechanism. Theredy this type eliminated all atmospheric influences.

Due to the meter head's special design and by using a security stopper the fastening screws are no more accessible after assembly so that secondary disassembly of the counter mechanism and unauthorized interference at the adjustment can be carried out only by violant destruction of the head.
Therefore the meter head is particularly well protected against manipulations. The complete measuring mechanism is secured against removal from the body by a seal.

The dial position endbles reading in flow direction. Any other dia position is possible The measuring mechanisms of the water size 200,250 and 300 are equal.They differ only intheir gear ratio in the countter capsule. Except slight differences the measuring mechanisms of the meter size 400 and 500 correspond to those of size 250 and 300.

To adapt a measuring me chanism to an other nominal size only the counter capsule has to be exchanged. The body is provided with a high-quality corrosion proof coating so than deposits cannot settle down in the meter. The meter is shielded from magnetic fields. Its function cannot be influenced by external magnets.

 

Dimensions มิติ (mm.)

Model Size L H H(*) G B
DN 200
8"
350
210
170
420
215
DN 250
10"
450
300
205
660
320
DN 300
12"
500
300
230
660
320
DN 400
16"
500
350
290
750
320
DN 500
20"
500
390
360
840
320

(*) This height is required for dismanting the measuring mechanism 

Particular Characteristics 
Externally Accessible Regulation Devices can be provided on request. 
Non Return Valve can be provided for 1/2",3/4",1"size Meter.
Available with Logarithm Nozzles Measuring Chamber to attain more high sebsitivity at the lowest flow rate.
Warm water version avaliable for temperatures up to 90ºc (194ºF)

 Name of Part

NO NAME OF PARTS NO NAME OF PATRS
1
LID METER
7
BODY CASING
2
HINGE PIN
8
SEALED CASE COMPLETE
3
HEAD CASE GASKET
9
HEAD BOH
4
HEAD CASE GASKET
10
HEAD BOH
5
SEALED GASKET
11
COVER BOH
6
SADDLE COVER    

Application Data

Nominal size of the me ter...............mm 200 250 300 400 500
Q Max Max. load (fewminiutes).............................m3h 600 1200 1500 3000 4500
Q n Permissible continuous load........................m3h 325 600 750 1500 2300
Q t Perting Line _2%.......................................m3h 12 15 15 50 80
Q Min Lower limit of the measuring range ± 5%....m3h 5 10 12 30 45
  Sting flow..................................................m3h 1.8 3 9 16 20

Our meter meet the values indicated in the table. concerns work data are based on our own test and experiences. The observation of the legal regulation guaranteed approval and verification

DN size 200 250 300 400 500
Flow rate with 1 m loss of head...............m3h 550 800 1450 3000 5500


Weights

Size of the meter……………………….………….. m m/h 200 250 300 400 500
Meter……………………………...…………………..kg 52 102 117 187 256
Measuring mechanism…………………...……………..kg 9 22 22 25 28
Body…………………………………….………….…kg 43 80 95 162 228

 

Mounting


Pipe-line
Horizontal
Veritical
Inclined
asahi_4_2
Top of the meter Upwards or
sideways

 

Order-Example

asahi_4_3

asahi_4_4 asahi_4_5

Dial of DN

           asahi_4_6-200-x-220                                   asahi_4_7-200-x217