Pulser Combination Water Meter

Pulser Combination Water Meter        Product images     Product description     APPLICATION    For measurement of high flows of cold potable water passing through the pipeline.   CHARACTERISTICS   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 degreesfor 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 LXSC-E) on the bypass line, and a flow changeover valve.   Annotation: LXLC-B removable element woltman water meter.                    LXSC-E multi-jet dry type vane wheel water meter.     WORKING CONDITION   Water temperature: ≤40℃   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%     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.      

No.	Name	Qty	No.	Name	Qty	No.	Name	Qty
1	Body(mainwatermeter	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	Street1elbow111with1non-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 COMFORMS TO Q/ZN 184-2003(company standard)  

Type	Size(mm)	qs Max Flow	qp Nominal Flow	qt Transitional Flow	qmin Min. Flow	Min.  Reading	Max. Reading
		m3/h				m3
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-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

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