Metal Tube Float Flowmeter for Low-Flow, Low Volume Media Measurements

• Customization: Available
• After-sales Service: Free Technical Guidance
• Warranty: 1 Year
• Model NO.: Metal Tube float Flowmeter
• Accuracy: 1.0~2.5
• Main Application: Water
• Size: DN15~DN100
• Sensor: Tube/Flange
• Application: Environmental Protection
• Type: Metal Tube Float Flowmeter
• Measuring Media: Liquid
• Measuring Principle: Mechanics
• Measurement Object: Closed Pipeline
• Certification: CE, ISO
• Transport Package: Carton Packaging
• Specification: 50.00cm * 50.00cm * 100cm
• Trademark: Vacorda
• Origin: China
• HS Code: 9026100000
• Production Capacity: 400 Pieces Per Week
• Package Size: 50.00cm * 50.00cm * 100.00cm
• Package Gross Weight: 5.000kg

Product Description

Part One: Introduction
Metal tube flowmeter consists of measuring tube, float, indicator and process connection components with the characteristics of small size, wide measuring range, and easy installation. In the industry area, it is widely used to measure flow of gas, liquid, and steam, especially suitable for mediums with low current velocity and low flow rate.

There are local indicators and smart remote types. For the local type, needles pointer shows instant flow. For the LCD type, needles pointer shows instant flow. The instant flow and the accumulative flow are digitally shown on the LCD display. For the smart remote type, there are many kinds of outputs, such as upper-lower limit alarming output, pulse output, standard two-wire 4-20mA current output, and HART communication protocol and so on.

Smart remote metal tube flowmeter adopts advanced 16-bit microprocessor, high accuracy sensor, SMD elements and high quality industrial components to guarantee the excellent performances of this flowmeter after the signal processing technology of digital filtering and software calibration.

According to different process connection methods, metal tube flowmeters are divided into many inflow-outflow types, such as bottom inflow& top outflow type, left inflow&right outflow, right inflow&left outflow and so on. Customer can choose the measuring tube needed according to its requirements. Due to its excellent performance, reliability and competitive price, it is widely used in the fields of oil, chemical industry, steel manufacture, light industrial, water etc. Metal tube flowmeter takes many different materials and is suitable for flow measurement of all non-corrosive, corrosive and strong corrosive mediums.
 
Part Two: Features

1. Single axle, smart display, high reliability, easy maintenance, long life time.
2. Flow ratio: 10:1, special type: 20:1. Less requirement on the straight tube.
3. Suitable for small size type and low flow rate fluids.
4. Metal structure, suitable for strong corrosive mediums and environments with non-contacting magnetic coupling transmission.
5. LCD display, showing instant flow and total flow at same time. High temperature, high pressure and flammable and explosive conditions.
6. Design with two watchers, strongly anti-interference CPU and additional circuit to make goods woke stably.
7. With function of upper-lower limit alarm, two-wire system to isolate switch output.
8.  Compatible with HART.
9. Local display and remote display available, also AC power, DC power and battery can be provided.

Part Three: Working principle

  Measured medium flows through the space between measuring tap pipe and float from bottom to top, producing differential pressure on the top and bottom of float to form lifting force. When the lifting force on float is stronger than the weight of float in the fluid, the float will rise, annular area will also increase, the flow rate of fluid at annular space will suddenly decrease, the differential pressure on top and bottom of float decreases, the lifting force on the float also decrease till lifting force and the weight of float keep balance, float will stay at a location. The height of float is the flow of measured medium. There's magnetic steel in the float, while float moves up and down with medium, magnetic field will change with the movement of float. The matchup of float's flow between the float in the tap pipe and the flow passing annular space:
  a. Local type, coupled by servo magnetic steel in the local indicator and inner magnetic steel of float, to produce turning, and drive the pointer. Indicating the flow by dial. (As the sketch)
  b. Intelligent remote type, coupled by servo magnetic steel in the intelligent indicator and inner magnetic steel of float, to produce turning, and drive the transmitting magnetic steel and pointer. Transforming the change of magnetic field into signal by magnetic sensor, via A/D conversion, digital filtering, temperature compensation, microprocessor process, D/A output, LCD displayer, to display instant flow and accumulated flow. (As the sketch)
Part Four: Technical parameters

Measuring range	Water:1-150000L/H(20ºC)
	Air: 0.7~3000m^3/h (20ºC, 0.1013MPa)
Measuring range proportion	Standard: 10:1
Accuracy class	Standard:1.5, 2.5; Special: 1.0
Pressure rating	Standard & sanitary one:DN15~DN50≤4.0MPa; DN80~DN200≤2.5MPa
	Special one:DN15~DN25≤42MPa;DN50~DN100≤16MPa
	Jacket one: 1.6MPa
Pressure loss	7kPa~70kPa
Medium temperature	Standard:-70ºC~+180ºC; PTFE:-50ºC~+100ºC(Change frequently is not allowed)
	High pressure:350ºC
Medium viscosity	DN15:<5mPa.s(F15.1~F15.3), <30mPa.s(F15.4~F15.8)
	DN25:<250mPa.s; DN50~DN200:<300mPa.s
Environment temperature	Remote type: -40ºC~+85ºC (LCD display:  -35ºC~+70ºC)
	Local needle indicator: -40ºC~+100ºC
Connection type	Flange; Sanitary tri-clamp
Jacket connection	DN15/PN1.6MPa or 1/2" ANSI 150LB RF or φ12mm tube
Flange Standard	Standard: GB/T 9119-2010, HG20592, ASME/ANSI B 16.5, DIN2501, SH3406
	Food type: SMS, DIN 11851, Tri-clamp
Wiring connection	M20×1.5; 1/2NPT female thread
Power supply	Standard: 24VDC two-line 4~20mA(12VDC~32VDC)
	AC type:85~260VAC
	Battery type:3.6V lithium battery(2-3 years lifetime)
Loading resistance feature	Two-line: max loading resistance 500Ω(24VDC)
	Multi-line: max loading resistance 500Ω
Warning signal output	Reed pipe warning switch output, upper limit and lower limit flow warning(contact capacity 250V 0.05A or 24VDC 0.2A)
LCD display	Instant flow display scope:0~99999
	Total flow display scope: 0~99999999
Protection grade	IP65, IP67
Explosion-proof grade	Exia II CT6Ga   Exd II BT6Gb
Installation Height:	Standard height: 250mm for DN15-DN200; High pressure type: 300mm for size > DN80

Part Five: Model introduction
Our company provide three kinds of indicator for customer choice (M1, M2,M3 ). M1 and M3A are mechanical needle pointer, suitable for local display; M2 is remote type with LCD indicator and can used for Exia II CT5Ga application. M3 is digital display and used for Exia and Exd application.

1. M1, M3A mechanical needle indicator
M1 is square shell structure & M3A is round housing. They use float in the pipe to let needles moving by magnetic steel moving, thus to get the flow from scale. Its characteristic is simple structure, reliable and no need power supply.

1. M2 Exia indicator

M2 is square housing structure, Exia II CT5Ga design. This type is mechanical needle display to show instant flow, 5 digit LCD displaying Instant flow, 8 digit LCD display total flow, also output 4~20mA signal, upper limit and lower limit warning signal.
M2 indicator provides 2 NO alarm contacts, with capacity 400V 0.05A or 24VDC 0.2A. It can be set by the screen panel.
3. M3 Exd indicator
M3 is a round housing, designed with Exia II CT6GB and Exd IICT6Gb. Its function covers all of M1 and M2. It has needle pointer system, which can replace M1 and M2 indicators.
M3 has battery powered one, but without signal output and warning output. The battery is lithium battery with 3.6V and can last 2-3 years. There is electricity capacity display in LCD right side, which can remind customer to change battery in time.
Part Six: Size and weight

Specification	A	A1	B	B1	G	⊿P
DN15	75	220	240	205	3.8	14
DN25	84	230	260	215	5.4	19
DN50	98	260	300	240	8.9	23
DN80	110	270	330	260	14.4	33
DN100	120	280	350	270	15.6	42
DN150	140	320	406	300	33.9	60
DN200	160	350	460	330	48.8	70

Ordering number

LZ-

1

2

3

4

5

6

7

8

9

10

11

12

13

14

 

1

Indicator type

Z: Local type

D: Remote type

2

Nominal diameter and Sealing surface(Pls also indicate the flange standard)

15

25

40

50

80

100

150

200

DN15

DN25

DN40

DN50

DN80

DN100

DN150

DN200

3

Structure type

A

B

C

DR

DL

Bottom in& Top out type

Bottom in & Right out type

Right in& Right out type

Right in & Left out type

Left in & Right out type

4

Material of Measuring tube

R0

R1

R4

RL

0Cr18Ni12Mo2Ti(316)

1Cr18Ni9Ti(321)

0Cr18Ni9(304)

00Cr17Ni14Mo2(316L)

RP

RW

HC

Ti

304+PTFE

Polished pipe(304)

Hastelloy C

Titanium

5

Additional structure

0

B

T

G

Y

Z

Standard

Insulation jacket

Steam heating

High temperature.

High pressure.

Damping type

6

Nominal Pressure(Unit: MPa)

1.6 - DN80~DN200

4.0 - DN15~DN50

16 - DN80~DN200

25 - DN15~DN50

7

Working temperature

E: -40~+100ºC

J: ≤150ºC

H: -40~+300ºC

T: Customize

8

Indicator type

M1

M2

M3

Square local indicator

Square digital indicator(Exia)

Round digital indicator(Exd)

9

Output & Power supply

No

No mark. M1, for Local Display

A

85~265VAC 50Hz power supply, 4-20mA, can add back-light, relay, pulse output

B

Battery power supply, LCD display, no back-light, no signal, no alarm output.

C

24VDC power supply, 2-wires 4-20mA, No back-light, can add HART Protocol

D

24VDC power supply, multi-wires 4-20mA,can add back-light, relay, pulse output

10

Explosion proof

N: Without

i: ExiaCT6Ga

e: ExdCT6Gb

Note:

1. Special size ordering needs confirmation with factory first.
2. When no flange standard, refer to GB/T 9119-2010. Otherwise, please point out the flange standard.
3. When difficult in purchasing SS316 material, use SS316L to replace.
4. Other pressure rating available.