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Flowmeter	last page

LAB Flowmeter

Diameter	Type	Scope of measurement	Size			Spec of socket joint pipe	Spec of welded pipe	Accuracy grade	pressure withstood	T of medium to be tested
			L	B₁	B₂
15	LZB-15S	0-100L/h	280	20	45	15	20	4	0.6	0-40 The medium is water or dilute acid or alkali with 30% of concentration below
		16-160L/h

		40-400L/h
		60-600L/h
25	LZB-25S	100-1000L/h	380	32	68	25	32
		160-1600L/h
		250-2500L/h
		300-3000L/h
50	LZB-50S	0.4-4m³/h	435	63	98	50	63
		0.6-6m³/h
		1-10m³/h
		1.6-15m³/h

Correct:
(1) When cone pipe and floater is dirt, clean it in time;
(2) Check the error of flowmeter regularly. Once over the regulated error, change the floater and cone pipe or demarcate it again.
(3) If the marking scale of liquid to be tested and flowmeter is same, the display value should be corrected in accordance with the liquid. The error of flowmeter is called as cited error. It can be expressed by the following formula: =Qf-Qg)/Qmax100%

?cited error

Qfgranulated display value of flowmeter

Qgactual flow value of flowmeter

Qmaxtested upper limit value of flowmeter

correction of flow display value:

When the density of liquid to be tested is different from the density of water at 20 under demarcated state of scale, the display value of flow should be corrected by the following formula:

Q_s:actual flow value
Q_N:read display value of flowmeter
Q_f:density of floater
_N:Density of water at 20 under demarcated state
_S:density of liquid to be tested.

Organic glass square flowmeter

Name	Size	Central distance at side outlet	Medium	Scope of flow	pipe thread interface	space between screws	temperature resistant	pressure withstood
LZB400L/h	1704034	128	water	0.2-2Gallon/minn 1-8kg/min	1/2	76	60	1MPa
LZB600L/h	1704034	128	water	0.3-3Gallon/minn 1-11kg/min	1/2	76	60	1MPa
LZB1m³/h	1704034	128	water	0.5-5Gallon/minn 2-18kg/min	1/2	76	60	1MPa
LZB2m³/h	2254845	165	water	1-10Gallon/minn 5-40kg/min	1'	100	60	1MPa
LZB3m³/h	2254845	165	water	1-15Gallon/minn 5-60kg/min	1'	100	60	1MPa
LZB4.5m³/h	2254845	165	water	2-20Gallon/minn 10-80kg/min	1'	100	60	1MPa
LZB6m³/h	2455550	180	water	3-25Gallon/minn 10-100kg/min	1	110	60	1MPa
LZB8m³/h	2455550	180	water	5-35Gallon/minn 15-140kg/min		110	60	1MPa
LZB9m³/h	2455550	180	water	5-40Gallon/minn 15-160kg/min		110	60	1MPa
LZB10m³/h	2746560	200	water	6-50Gallon/minn 25-180kg/min		125	60	1MPa
LZB400L/h	1703634	straight outlet	water	0.2-2Gallon/minn 1-8kg/min			60	1MPa
LZB600L/h	1703634	straight outlet	water	0.3-3Gallon/minn 1-11kg/min			60	1MPa
LZB1m³/h	1703634	straight outlet	water	0.5-5Gallon/minn 2-18kg/min			60	1MPa
LZB2m³/h	2204545	straight outlet	water	1-10Gallon/minn 5-40kg/min			60	1MPa
LZB3m³/h	2204545	straight outlet	water	1-15Gallon/minn 5-60kg/min			60	1MPa
LZB4.5m³/h	2204545	straight outlet	water	2-20Gallon/minn 10-80kg/min			60	1MPa
LZB6m³/h	2405252	straight outlet	water	3-25Gallon/minn 10-100kg/min			60	1MPa
LZB8m³/h	2405252	straight outlet	water	5-35Gallon/minn 15-140kg/min			60	1MPa
LZB9m³/h	2405252	straight outlet	water	5-40Gallon/minn 15-160kg/min			60	1MPa
LZB10m³/h	2606060	straight outlet	water	6-50Gallon/minn 25-180kg/min			60	1MPa
LZB15m³/h	2606060	straight outlet	water	8-70Gallon/minn 30-260kg/min			60	1MPa
LZB20m³/h	2807571	straight outlet	water	15-90Gallon/minn 60-340kg/min			60	1MPa
LZB25m³/h	2808582	straight outlet	water	20-110Gallon/minn 80-400kg/min	2'		60	1MPa