Diesel Flow Measuring Oval Gear Type Mechanical Flow Meter

• Customization: Available
• Accuracy: ±0.2-0.5%
• Main Application: Diesel Fuel, Fuel Oil, Corrosive Liquid/Gas
• Model NO.: LC-A
• Size: Dn10~Dn2000
• Sensor: Tube/Flange
• Application: Industrial Production
• Type: Volume Type Flow Meter
• Measuring Media: Liquid
• Measuring Principle: Mechanics
• Measurement Object: Closed Pipeline
• Certification: DIN, GB, CE, ISO
• Counter: Mechanical Type and Electrical Type
• Zero Function: Can Set Back to Zero
• Material: Cast Iron, Cast Steel, Stainless Steel
• Medium: High Viscosity Fluid Like Diesel Oil
• Signal: 4~20mA, Hart, RS485 Optional(Electric Counter Only
• Transport Package: Wooden Case or Carton
• Specification: ISO
• Trademark: U-ideal
• Origin: China
• HS Code: 90261000
• Production Capacity: 3000PCS/Month
• Package Size: 50.00cm * 50.00cm * 50.00cm
• Package Gross Weight: 18.000kg

Product Description

LC OVAL GEAR FLOWMETER- Mechanical fuel flow meter
Oil Oval Gear Positive Displacement (PD) Flowmeters
Oval wheel flow-meters(High Viscosity Oval Gear Flowmeters)

1.      General Description

High accuracy positive displacement flowmeter for wide range of fluids including water, petroleum, solvent. The mechanical counter allows checking of total flowrates in the field. Output furnished flowmeter is also available optionally.
Tianjin U-ideal Instrument oval flowmeter is suitable for viscous oils, ranging from hydraulic to light gear oils, eliminating any problems associated with changes in viscosity during operation. It also provides the advantage of positive displacement technology at a rotameter price. This flowmeter has a cost-effective design allowing for stress-free maintenance. The only wearable components are the oval gears and their axles, allowing the two-step rebuilding process to be easily accomplished in minutes with no necessary recalibration.

2.      Structure and Operation Principle

 
U-ideal Oval meter is generally comprised of a flow transducer and a counter mechanism. The main part of the transducer is a measuring chamber which consists of a pair of oval wheels and a sealing coupling. The counter mechanism contains speed reduction gears, adjusting device, counter, and pulse transmitter etc.
 
 
In the measuring chamber, a pair of oval wheels and cover plate makes a crescent shape cavity which is used as a measuring unit. The oval wheels are rotated by the pressure difference in the inlet and outlet of the meter and drive the inlet liquid through the cavity to the outlet, each revolution of the oval wheels displaces fluid four time the volume of the cavity, the total revolutions of the oval wheels and the revolution rate will be

 
transferred to the mechanical counter, and the total liquid volume and instantaneous flow will be known by the pointer display and the roller integration. The attached signal generator converts the rotary axial angular shift to the pulse signal and then transmits it to the electrical indicator for remote integrated flow and instantaneous flow indication and control.
 

 
Chart 2: Permanent Magnet driving block diagram of Model LC flowmeter
 

 

Chart 3: PTFE PD meter diaphragm

3.      Technical Specification

    Nominal operating pressure .....  1.6~42MPa
    Norminal diameter:.........  8~300mm
    Counter:............ ....  mechanical counter or electronic counter
    High accuracy: ...............  ±0.5% RD (Option: ±0.2% RD)
    Viscosity: ..................  0.3~200MPas or 0.3~1000MPas
    Temperature: .............  0~60 or -20~+300°C (environment: -20~+70°C)
    Material: ...............  Cast Iron, Cast steel, SS316 or other material on order
    Pressure drop:............  0~1000Mpas<80kpa
    Flow range................  See table

 

4.      Flow range:                                                 unit: m³/h

Type	DN	Viscosity (MPa. s)
		<0.3	0.3~0.8	0.8~2		2~200		200~1000		1000~2000
LC-10	10		0.2-0.5		0.08-0.5	0.08-0.5	0.05-0.5	0.06-0.3	0.03-0.3	0.03-0.2	Flow Range unit: m^3/h
LC-15	15		0.75-1.		0.3-1.5	0.3-1.5	0.15-1.5	0.2-1.0	0.1-1.05	0.07-0.75
LC-20	20		1.5-3	1-3	0.4-3	0.5-3	0.3-3	0.4-2.1	0.2-2.1	0.15-1.5
LC-25	25	4-6	3-6	2-6	0.8-6	1-6	0.6-6	0.8-4.2	0.4-4.2	0.3-3
LC-40	40	9-15	7.5-15	5-15	2-15	2.5-15	1.5-15	2.1-10.5	1.0-10.5	0.7-7.5
LC-50	50	10-24	8-24	8-24	3-24	4.8-24	2.4-24	2.4-16.8	1.6-16.8	1.2-12
LC-B40, 50	40, 50	8-20	6-20	6-20	4-20	4-20	2-20	2.8-14	1.4-14	1.0-10
LC-B65	65	27-40	20-40	15-40	5-40	8-40	4-40	5.6-28	2.8-28	2-20
LC-80	80	40-60	30-60	20-60	8-60	12-60	6-60	8.4-42	4.2-42	3-30
LC-100	100	67-100	50-100	34-100	13.-100	20-100	10-100	14-70	6-70	5-50
LC-150	150	38-120	38-120	40-120	12-120	24--120	12-120	15-100	10-90	16-80
LC-200	200	227-340	170-340	114-340	43-340	56-340	34-340	47.6-238	23.8-238	17-170
LC-250					80~500	150~450
Accuracy		0.5	0.5	0.2	0.5	0.2	0.5	0.2	0.5	0.5
Note	"gal/h" could be special ordered.

Note: 1. If the temperature of the metered liquid is higher than 80°C. The maximum flow fate will be 90% of the primary flow, and the minimum will be 120%.
2. When the medium measured is corrosive, the maximum flow should be reduce to 2/3 above.
 

5.      Installation and usage

1)      Follow the right flow direction on flowmeter body. And make it easy reading.

Chart 4: position of installation
 
2)      The flowmeter should be installed in the normal temperature place where no harmful gas and strong heat radiation to protect the flowmeter.
3)      The oval gear axis shall be in level position i.e.the dial shall be installed to the vertical position (graduation "0" shall be on the top) to decrease confriction between oval gear and carcase and abrasion of spare parts. To be convenient for reading, the counter can be rotate to 90 degree or 180 degree according to the different installation position.
4)      The pipes shall be completely washed before installation of flowmeter. The filter shall be installed upstream of flowmeter if filter no filter available to avoid impurity to the flowmeter.
5)     
The flowmeter shall be installed at the side of the pump's outlet while the flow regulating valve at the backward position of the flowmeter First open the stop valve at the upper side, then open the flow regulating valve or stop valve slowly at the backward position, it is strictly prohibited to open or close suddenly.
Chart 5: position of installation

 

1.      Error Adjustment

Error E=
 
1)    The standard of double layer gear designed is 38/35. If it is found the flowmeter runs fast when checking, it means "+" errors occurred. For example +1.02 -+0.3% ( average error is +0.66%). The error of standard double layer gear 38/35 shall be treated as '0' and adjust 0.66% lower. Referring to the error registration chart, replace the gears with the corresponding double layer. Take the nearest value 0.62%, replace double layer gear 41/38 to decrease error to +0.4%~-0.32% which is within the qualified scope.
2)    Precision of flowmeter will be changed owing to gears'abrasion during usage and lead to ultra-error. It can be adjusted up to garde if error range is less than 1 %. For example, if precision of meter declined to + 0.22%       0.64% (average error is - 0.21 %), first check number of teeth of original double gear. If it is 38/35, adjust as the above No.l. If it is 41/38 gear, corresponding error +0.62% shall be treated as 0, raise 0.21% to make error decline 0.21% and change into 0.41%. Referring to the error registration chart, replace 40/37 double layer gear. (Its error is 0.43% and it is most similar to 0.41%). The actual error will decline 0.19% after adjustment. Precision of meter is +0.41--0.45% within qualified scope.
3)    Means to verify and adjust Grade 0.2 oval gear flowmeter is same as above item 1, item2.
4)    Take off  housing ( in chart 2 and chart 3 ) first and loose axle sleeve at the back of it (See chart 6, same below ) and nuts ,, replace and adjust gear, then turn adjusting board to make adjusting gear and driving gear,to joggle correctly, tighten axle sleeve and nuts.
 
Error Adjustment Table
 

Error adjustment % under DN40		Adjustment gear set			Error adjustment % DN50~200		Adjustment gear set
		Z1	Z2				Z1	Z2
When the indicated flow rate is smaller than the actual value, Z1, Z2 can be selected from bottom to top. → ←When the indicated value is larger than the actual value, Z1, Z2 can be selected from top to bottom.	3.27	37	33		When the indicated flow rate is smaller than the actual value, Z1, Z2 can be selected from bottom to top→. ←When the indicated value is larger than the actual value, Z1, Z2 can be selected from top to bottom.	4.21	33	30
	2.94	38	34			3.90	34	31
	2.63	39	35			3.62	35	32
	2.34	40	36			3.35	36	33
	2.06	41	37			3.10	37	34
	1.80	42	38			2.86	38	35
	1.55	43	39			2.63	39	36
	1.32	44	40			2.42	40	37
	1.09	45	41			2.22	41	38
	0.88	46	42			2.02	42	39
	0.74	35	32			1.84	43	40
	0.48	36	33			1.75	29	27
	0.23	37	34			1.67	44	41
	0.00	38	35			1.50	30	28
	0.22	39	36			1.35	46	43
	0.43	40	37			1.27	31	29
	0.63	41	38			1.05	32	30
	0.81	42	39			0.85	33	31
	0.99	43	40			0.66	34	32
	1.16	44	41			0.48	35	33
	1.32	45	42			0.31	36	34
	1.47	46	43			0.15	37	35
	1.54	31	29			0.00	38	36
	1.75	32	30			0.14	39	37
	1.95	33	31			0.28	40	38
	2.14	34	32			0.40	41	39
	2.31	35	33			0.53	42	40
	2.489	36	34			0.64	43	41
	2.63	37	35			0.75	44	42
	2.78	38	36			0.86	45	43
	2.92	39	37			0.96	46	44
	3.05	40	38			1.14	24	23
						1.32	25	24
						1.47	26	25
						1.62	27	26
						1.75	28	27
						1.88	29	28
						2.00	30	29
						2.11	31	30
						2.21	32	31
						2.30	33	32
						2.39	34	33
						2.48	35	34
						2.63	37	38
						2.77	39	38
						2.89	41	40
						3.01	43	42
						3.16	46	45

 


Diesel oval gear flow meter, Digital oval gear flow meter( Pd flowmeter; Gear flow meters) Oval gear flowmeter with LCD, digital oval gear flowmeter, positive displacement flowmeter have 4~ 20mA output and reset function, oval gear flowmeter can display the rate and total flow...

U-ideal instrument supply various positive displacement flow meter for liquid, diesel oil, natural gas. With high accuracy.

U-ideal instruments provides 6 measuring principles such as:
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Micro Flow Meters
Helical Flow Meters
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Turbidity Meters
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More than 40 years of experience in flow metering equipment combined with innovative and customised product development enable KEM Kuppers to be your competent partner for various matters of flow measurement
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Turbine Flow Meter
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Measuring ranges from 0.03 up to 48, 000 l/min.
Typcal viscosity range from 0.5-100 mm2/s
Turbine Flow Meters -General Overview / Measuring Principle
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Turbine Flow Meter for Solvents and DI-Water
Turbine Flow Meters for High Pressure Applications
Turbine Flow Meters for Temperature Control Units
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Helical Flow Meter
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Measuring ranges from 0.01-400 l/min.
Typical viscosity range from 1-1, 000, 000 mm2/s
Helical Flow Meters in Standard Design
Helical Flow Meter with Integral Double Pickup (-Compact)
Helical Flow Meters with Ball Bearings
Micro Flow Meter
Flow measurement of additives, pharmaceuticals, aromatic substances/perfumes, liquefied gases, fluid food, demineralised water, 2- and 3-component applications
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