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Metal rotameter

Metal rotameter

Product Details

I. Overview

LZ series metal tube float flowmeter (also known as metal rotor flowmeter ) is divided into two series of LZ Z DH and LZ Z D. This product has the characteristics of wide application range, simple structure, convenient installation and high precision. Compared with the glass rotor flowmeter, the reading is concise and more resistant to high temperatures and high pressures. The flow rate of opaque medium and corrosive medium can be measured. The instrument tube body and flange are made of stainless steel (1Cr18Ni9Ti) or 316L [Japanese, American] (1crl8ni12Mo2Ti). LZ Z DH series: The conventional type of orifice plate and float are made of stainless steel. The anti-corrosion type of orifice plate, float and tube inner liner are made of anti-corrosion materials PTFE and F46. LZ Z D series: stainless steel for float and conical tube, this series is non-corrosive.

LZ Z DH series components: instrument tube body, standard orifice plate, conical float, magnetic converter

LZ Z D series components: instrument body, standard float, conical tube, magnetic converter

The working parameters of this series of instruments and their conversion and correction are provided by the instrument calculation software to provide a standard calculation method to ensure the metering accuracy of the instrument.


Second, the measurement principle

The LZ series metal float flowmeter is an area flowmeter, that is, in the vertical measuring tube of the flowmeter, when the fluid flows upward through the pipe, the float moves upward, and at a certain position, the lift of the float and the gravity of the float are balanced. The area of the flow gap between the float and the orifice (or cone) remains constant. The annulus area is proportional to the rise height of the float, ie a certain height of the float represents the flow rate. When the float moves up and down, the position is transmitted to the external indicator in the form of magnetic coupling, so that the pointer of the pointer follows the float, and the pointer is linearly indicated by the cam plate to indicate the magnitude of the flow value. The electric remote transmission type is used to accurately convert the flow value into a standard signal of 0~10mA or 4~20mA through the angle sensor and the electric transmission circuit.


Third, technical parameters

Instrument type LZZDH series LZZD series
Flow range Water 2.5~100000L/h Air 0.07~3000m3/h Water 6~100000L/h Air 0.2~1000m3/h
Range DN≤100mm:10:1 DN>100mm: 5:1 DN<80mm:10:1 dn≥80mm:="">
Accuracy Standard type 2.5, special order up to level 1.0
Maximum working pressure DN15, DN25, DN40, DN50: 4.0MPa DN15, DN25, DN40, DN50: 6.4MPa
DN80, DN100, DN150: 1.6MPa DN25, DN40, DN50, C54DN80, DN100: 1.6MPa
Medium temperature Ordinary type H1: -40 ° C ~ 100 ° C, high temperature type H2: -80 ° C ~ 250 ° C
Ambient temperature -25°C~+55°C (M2S liquid crystal display type 0°C~40°C)
Connection method Flange connection (flange standard: refer to GB9115-88, JB82-59, special specifications according to user requirements)
Explosion-proof grade EibllCT4 with safety barrier LB987S
Protection level IP65
Viscosity DN15: ≤5mPa.s, DN25~DN150: ≤250mPa.s


Fourth, LZ Z D series specifications

Path (mm) Job number Flow range Pressure loss Kpa
Water m3/h Air m3/h air water
15 11 0.0066~0.06 0.2~2 6.8 7.3
12 0.01~0.1 0.5~5 6.8 8.0
13 0.016~0.16 0.75~7.5 7.2 10.8
14 0.025~0.25 0.8~8 8.6 10.0
25 twenty one 0.04~0.4 1.2~12 7.0 8.1
twenty two 0.06~0.6 1.6~16 8.0 8.7
twenty three 0.1~1.0 3~30 8.6 9.1
twenty four 0.16~1.6 5~50 9.1 10.2
40 41 0.25~2.5 8~80 9.2 10.5
42 0.4~4.0 12~120 9.8 11.0
50 51 0.6~6.0 16~160 10.5 11.3
52 1.0~10 30~300 11.2 12.0
53 1.6~16 40~400 12.6 13.1
80 81 4~20 120~600 14.5 16.8
82 5~25 180~1800 15.0 18.2
100 101 6~30 200~1000 15.0 17.2
102 8~40
150 151 12~60 16.0 18.1
152 16~80 19.2 20.2
153 20~100 20.1 22.4


Five, LZ Z DH series specifications                                                          

Path (mm) Job number Flow range Pressure loss Kpa
L/h Air m3/h water air
Routine Anti-corrosion type Conventional, antiseptic Routine Anti-corrosion type
15 1A 2.5~25 ---- 0.07~0.7 6.5 ---- 7.1
1B 4.0~40 2.5~25 0.11~1.1 6.5 5.5 7.2
1C 6.3~63 4.0~40 0.18~1.8 6.6 5.5 7.2
1D 10~100 6.3~63 0.28~2.8 6.6 5.6 7.5
1E 16~160 10~100 0.48~4.8 6.8 5.6 8.0
1F 25~250 16~160 0.7~7.0 7.0 5.8 10.8
1G 40~400 25~250 1.0~10 8.6 6.1 10.0
1H 63~630 40~400 1.6~16 11.1 7.3 14.0
25 2A 100~1000 63~630 3~30 7.0 5.9 7.7
2B 160~1600 100~1000 4.5~45 8.0 6.0 8.8
2C 250~2500 160~1600 7~70 10.8 6.8 12.0
2D 400~4000 250~2500 11~110 15.8 9.2 19.0
40 4A 500~5000 500~5000 12~120 10.8 8.6 9.8
4B 600~6000 600~6000 16~160 12.6 12.4 16.5
50 5A 630~6300 400~4000 18~180 8.1 6.8 8.6
5B 1000~10000 630~6300 25~250 11.0 9.4 10.4
5C 1600~16000 1000~10000 40~400 17.0 14.5 15.5
80 6A 2500~25000 1600~16000 60~600 8.1 6.9 12.9
6B 4000~40000 2500~25000 80~800 9.5 8.0 18.5
100 10A 6300~63000 4000~40000 100~1000 15.0 8.5 19.2
150 10A 20000~100000 ---- 600~3000 19.2 9.5 20.3


Sixth, LZ Z D series flowmeter installation size (mm)

The way to D1 D2 Number of holes ψd f
15 65 95 4~ψ14 224
25 85 115 4~ψ14 245
40 110 150 4~ψ18 266
50 125 165 4~ψ18 285
80 160 195 8~ψ18 306
100 180 215 8~ψ18 336
150 240 280 8~ψ23 386


Seven, LZ Z D series flowmeter installation size (mm)

Installation method Path (mm) Size (mm) Nominal pressure Mpa Mounting hole number and aperture ψd (mm)
H1 H2 L D1 D2
Curved tube type (a) 25 178 538 95 Ψ100 Ψ135 6.4 4~ψ18
174 534 91 Ψ85 Ψ115 2.5 4~ψ14
40 266 650 150 Ψ125 Ψ165 6.4 4~ψ23
262 646 146 Ψ110 Ψ145 2.5 4~ψ18
50 266 650 150 Ψ135 Ψ175 6.4 4~ψ23
262 646 146 Ψ125 Ψ160 2.5 4~ψ18
80 350 760 200 Ψ160 Ψ195 2.5 8~ψ18
100 390 820 500 Ψ180 Ψ230 2.5 4~ψ23
150 500 950 240 Ψ240 Ψ280 1.6 4~ψ23
Bent type (b) 15 - 420 - Ψ75 Ψ105 6.4 4~ψ14
25 - 595 - Ψ100 Ψ135 6.4 4~ψ14
- 587 - Ψ85 Ψ115 2.5 4~ψ14

 

 

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Customer Service Hotline:13938765366

Company Telephone:13938765366

公司传真:0755-66803070

Office Mailbox:Tianchenyb@163.com

Company Address:North Section of Yuanxin Road, Xinxiang City, Henan Province

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