China Liquid Flow Meter manufacturer
Hongqi Automatic Control (Jiangsu) Co., Ltd.
Hongqi Automatic Control (Jiangsu) Co., Ltd.
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Oval Gear Flow Meter

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Hongqi Automatic Control (Jiangsu) Co., Ltd.

Province/State:jiangsu

Country/Region:china

Tel:86-0517-86880701

Contact Person:
Mrs.Lulu View Contact Details

Oval Gear Flow Meter
Brand Name JSHQ
Certification CE.ISO9001
Place of Origin CHINA
Detailed Product Description


Oval Gear Flow Meter 


The stainless steel oval gear flowmeter is a corrosion-resistant flowmeter developed by our company to meet market demands. This product features a novel design and reasonable structure. It is lightweight and highly accurate, and can be widely used for flow measurement in petroleum, chemical, pharmaceutical, and other industries.



Detailed description


Type A-F Oval Gear Flow Meter


[Parameters of Oval Gear Flow Meter]
The HQ-LC-B oval gear flow meter is a corrosion-resistant flow meter developed by our company to meet market needs. This product features a novel design and reasonable structure. It is lightweight and highly accurate, and can be widely used in flow measurement in petroleum, chemical, pharmaceutical, and other industries.

HQ-LC-B Stainless Steel Oval Gear Flow Meter Product Features

n High measurement accuracy, wide flow range, and good repeatability

n Smooth rotation of the screw rotor, low vibration, and long service life

n Insensitive to changes in the viscosity of the measured liquid, especially suitable for measuring high-viscosity liquids

n Simple structure, small size, and light weight

n Easy installation; no straight pipe section is required before the meter

HQ-LC-B Oval Gear Flow Meter Technical Parameters

Main component materials and operating pressure (Operating pressure 1.0MPa, 1.6MPa)

Accuracy class: Class 0.5, Class 0.2 (General medium temperature -10℃ ~ +60℃)

Remote display and field explosion-proof rating: Exia II CT5

Operating medium temperature: -20℃ ~ 100℃, up to 200℃ with high-temperature adjustment and heat dissipation cylinder. In this case, the maximum flow rate is 90% of the original flow meter's maximum flow rate, and the minimum flow rate is 120% of the original flow meter's minimum flow rate.

Ordinary cast iron type (A), cast steel type (E), stainless steel type (B)


  Item
Model
 ­ HQLC-A cast iron
HQLC-E  Cast steel
HQLC-B Stainless Steel
Nominal pressure
Mpa
1.0    1.6
2.5   4.0   6.4
1.0    1.6
Viscosity of the tested liquid
2 — 200  mPa.s
Temperature of the liquid being tested
-20℃～+100℃
Flow Range  m³h
Model
Elliptical gear flow meter         
Accuracy
HQLC-A Cast Iron
HQLC-E Cast Steel
HQLC-B Stainless Steel
Norminal Diameter(DNmm
0.5
0.2
0.5
0.2
0.5
0.2
10
0.04～0.4
0.1～0.4
0.04～0.4
0.1～0.4
0.1～0.5
0.1～0.5
15
0.25～1.5
0.3～1.5
0.25～1.5
0.3～1.5
0.3～1.5
0.3～1.5
20
0.5～3
0.6～3
0.5～3
0.6～3
0.6～3
0.6～3
25
1～6
1.2～6
1～6
1.2～6
1.2～6
1.2～6
40
2.5～15
3～15
2.5～15
3～15
3～15
3～15
50
4～24
4.8～24
4～24
4.8～24
4.8～24
4.8～24
65
5～40
8～40
5～40
8～40
8～40
8～40
80
10～60
12～60
10～60
12～60
12～60
12～60
100
16～100
20～100
16～100
20～100
20～100
20～100
150
32～190
38～190
32～190
38～190
38～190
38～190
200
34～340
68～340
34～340
68～340
68～340
68～340



Elliptical Gear Flow Meter Selection Chart


HQLC Oval Gear Flow Meter
DN □ DN
Connectction -P Direct pipe welding type
-S Direct pipe welding type
-W Butt-welded flange type
-L Threaded
-K Clamp on
Pressure Level A 1.0 MPA
B 1.6 MPA
C 2.5 MPA
D 4.0 MPA
E Customized
Output Signal 0 No output
1 4-20MA
2 RS485
3 Pulse output
4 HART Protocol
Valve body material C Cast Iron
G Cast Steel
B1 Carbon Steel(DN10-50)
B2 Carbon Steel(DN65-200)
E1 Stainless Steel 304(DN10-50)
E2 Stainless Steel 304(DN65-200)
Measuring Accuracy A ±0.2%
B ±0.5%
C ±1.0%
D ±1.5%
E ±2.5%
Power Supply DC 24V
AC 220V
D Battery
T Photo photovoltaic power supply



Installation diagram






On-site installation diagram of an oval gear flow meter




G-I type gear flow transmitter


The HQ-GF gear flow transmitter is a type of positive displacement flow transmitter. It is a high-precision transmitter for measuring volumetric flow rate. As the medium flows, the gears mesh and rotate. Under the action of fluid flow, a pressure difference is formed between the inlet and outlet ends of the instrument.  No power supply is required; a pair of gears rotate freely, and the cavities between the gears are filled with liquid. The liquid is discharged as the gears rotate, and the flow rate of the liquid passing through the instrument can be determined by measuring the number of gear rotations. The cylindrical gear transmitter can measure very small flow rates and quantify small volumes of liquid.

The rotational speed of the cylindrical gear transmitter is detected by a sensing coil in a signal amplifier mounted on the instrument casing. The signal amplifier does not come into contact with the measured medium. When the transmitter gears cut the magnetic field lines generated by the magnet inside the casing, it causes a change in the magnetic flux in the sensing coil. The sensing coil sends the detected periodic change in magnetic flux signal to the preamplifier. The signal is amplified and shaped, generating a pulse signal proportional to the flow rate. This signal is sent to the unit conversion and flow integration circuit to obtain and display the accumulated flow value. At the same time, the pulse signal is also sent to the frequency-to-current conversion circuit, which converts the pulse signal into an analog current, thereby indicating the instantaneous flow rate.

The cylindrical gear transmitter has high processing precision and precise installation. The rotation of the gears is scanned non-contact, and each tooth generates a pulse, resulting in very high resolution. The cylindrical gear transmitter can measure very small flow rates and quantify small volumes of liquid.


Applications:
● Resin and grease measurement
● Fuel oil measurement
● Food filling measurement
● Fluid control systems


Features:
1. High pressure resistance (1.0-45MPa), high and low temperature resistance (-196℃~+200℃)
2. Can measure various viscous media
3. High accuracy and high repeatability, wide range ratio (1:100)
4. Pulse output/analog output optional
5. Large measuring range, corrosion resistance, and strong resistance to contamination (acids and alkalis)


Performance parameters

Unit: mm

Model/Size A B C D E F G H
HQ-GF02 Φ83 80 55 70 G1/4 40 M6 16
HQ-GF04 Φ83 80 55 70 G3/8 55 M6 16
HQ-GF06 Φ83 80 62 70 G1/2 55 M6 14
HQ-GF10 Φ83 80 65 70 G1/2 55 M6 14
HQ-GF15 Φ113 110 65 70 G3/4 90 M6 28
HQ-GF25 Φ158 140 85 70 G1 110 M8 40
HQ-GF32 Φ218 160 100 70 G1-1/4 180 M8 45


The above dimensions are for standard products; in special cases, customization is available based on the customer's on-site requirements.


Basic Parameter Table


Flow rate unit: L/H

Model Flow Range I/H K coefficient P/L Max Pressure Bar Temperature Accuracy Port
Alloy Stainless steel
HQ-GF02 0.6-50 11200 150 400 -15-80℃

+/-0.5%(Range 1:10)

+/-1.0%(Range 1:100)

 G1/4
HQ-GF04 5-250 4780 150 400 -15-80℃ G3/8
HQ-GF06 10-500 3468 150 400 -15-80℃ G1/2
HQ-GF10 50-1200 2780 150 400 -15-80℃ G1/2
HQ-GF15 200-3000 334 150 400 -15-80℃ G3/4
HQ-GF25 1000-12000 59.9 150 400 -15-80℃ G1
HQ-GF32 2000-20000 39.9 150 400 -15-80℃ G1-1/4


Gear flow transmitter selection table


HQ-GF





Statement
DN 04~300




DN4~DN300
Seal F



FKM

P



PP
Connection 1


Thread

2


Flange

3


Sanitary flange connection

4


Card slot connection
Signal Output P

Pulse Output

I

4-20mA

RS

RS485

H

HART
 
Material		 1
304

2
316L

3
Tetrafluoro

4
Aluminum alloy
Special Requirements T High temperature

P High Voltage


Standard nominal diameters: DN2, 4, 6, 10, 15, 25, 32, 40


Actual installation diagram of a gear flow transmitter in the field




Certificate  Approved
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