Anti-corrosion electromagnetic flowmeter-Electromagnetic flowmeter-Tianchang Martin Trading Co., Ltd.(天长市马丁商贸有限公司)

LDE anticorrosive electromagnetic flowmeter mainly measures acid and alkali liquid with anti-corrosive medium. Welcome new and old customers to consult the manufacturers of anticorrosive electromagnetic flowmeters.
1. Product principles

LDE anticorrosive electromagnetic flowmeter is a flowmeter for measuring flowmeters according to Faraday's law of electromagnetic induction. The advantages of anticorrosive electromagnetic flowmeter are small pressure loss and large flow range. The ratio of the maximum flow to the minimum flow rate is generally 20:1 or more. The wide diameter of the industrial pipe diameter can be used to measure the diameter of the pipe in the DN10~DN2000 range. The output signal and the measured flow rate are linear, and the accuracy is high. It can be used to measure the fluid flow diagram 1, such as acid, alkali, salt solution, water, sewage, corrosive liquid and mud, pulp, pulp and so on, whose conductivity is more than 5 s/cm. Widely used in chemical, metallurgical, textile, paper, environmental protection, food, domestic sewage, industrial sewage, cooling water, water works and other industrial sectors, as well as municipal management, water conservancy construction, river dredging, building water supply metering and other areas of metering.

Two, product characteristics

1. Strong corrosion resistance. Almost any conductive liquid can be measured.

2, strong anti-interference, almost outside interference.

3. Measurement is not affected by changes in fluid density, viscosity, temperature, pressure and conductivity.

4, there is no pressure loss in the measuring tube, and the requirement of straight pipe section is low.

5. There are no movable parts and no choke components in the pipeline. There is almost no negative pressure loss.

6. Self checking and self diagnosis function.

7. On site, you can modify the range online according to the actual needs of users.

Three, lining selection table

Lining material	main performance	Maximum medium temperature		Scope of application
Lining material	main performance	One body type	Separate type
Polytetrafluoroethylene (PTFE) F4)	It is a kind of plastic with very stable chemical properties. It can resist boiling hydrochloric acid, sulfuric acid, nitric acid and aqua regia, and also strong alkali and various organic solvents. It is resistant to corrosion of three fluorine chloride, high temperature three fluorinated chlorine, high velocity liquid fluorine, liquid oxygen and oxygen.	70 C	100 C 250 C (special order required)	1, strong acid, alkali and other strong corrosive medium. 2, health media.
Polyfluoroethylene propylene F46)	with F4, the resistance to abrasion and negative pressure is higher than that of F4.		Ditto
Polyfluorinated ethylene Fs)	The upper limit of temperature is lower than that of polytetrafluoroethylene, but the cost is lower.		80 C
Polychloroprene rubber	1. It has excellent elasticity, high breaking force and good wear resistance. 2, resistance to general low concentration of acid, alkali, salt medium corrosion, do not withstand oxidation medium corrosion.		80 C 120 C (special order required)	Water, sewage and weakly abrasive slurry.
Polyurethane rubber	One It has excellent wear resistance.		80 C	Neutral strong wear slurry, coal slurry, mud
Polyurethane rubber	Two Corrosion resistance is poor.		80 C	Neutral strong wear slurry, coal slurry, mud

Four. Electrode selection table

Electrode materials	Corrosion resistance and wear resistance
Stainless steel0Crl8Nil2M02Ti	It has weak corrosive media for industrial water, domestic water and sewage. It is suitable for petroleum, chemical, steel and other industrial sectors, municipal, environmental protection and other fields.
Hastelloy alloy B	It has good corrosion resistance to all concentrations of hydrochloric acid below boiling point, and also is resistant to corrosion of non chlorinated acid, alkali and non oxidizing salt solution such as sulfuric acid, phosphoric acid, hydrofluoric acid and organic acid.
Hastelloy alloy C	It can resist the corrosion of non oxidizing acid, such as nitric acid, mixed acid, or the mixture of chromic acid and sulfuric acid, and also oxidizing salts such as: Corrosion of Fc +, Cu + or other oxidants, such as hypochlorite solution above normal temperature, corrosion of seawater.
titanium	Resistant to seawater, chloride and hypochlorite, oxidizing acids. ( Including corrosion of fuming sulfuric acid, organic acid and alkali. The corrosion resistance of pure acid (such as sulfuric acid and hydrochloric acid) is not strong, but if the acid contains oxidant (such as nitric acid, Fc +, Cu +), the corrosion will be greatly reduced.
tantalum	It has excellent corrosion resistance and is similar to glass. In addition to hydrofluoric acid, fuming sulphuric acid and alkali, it is almost capable. Corrosion of a chemical medium, including hydrochloric acid at boiling point, nitric acid and sulfuric acid below 50 L. Diao in alkali; corrosion resistance.
Pt / Ti alloy	Almost all chemical media, but not suitable for aqua regia and ammonium salt.
Stainless steel coated tungsten carbide	For non corrosive, strong wear media.
Note: due to the variety of media, its corrosion is affected by complicated factors such as temperature, concentration and velocity. Therefore, this table is for reference only. The user should make his own choice according to the actual situation. If necessary, the decay test of the selected materials should be done, such as hanging film test.

Five, flow caliber control table

caliber Mm	Flow range M /h	caliber Mm	Flow range M /h
DN10	0.16~2.5	DN400	Two hundred and fifty ~ 4000
DN15	0.4~6	DN500	Four hundred ~ 6000
DN20	Zero point six ~ 12	DN600	Six hundred ~ 10000
DN25	One ~ 16	DN700	Eight hundred ~ 12000
DN32	1.6~25	DN800	One thousand ~ 16000
DN40	Two point five ~ 40	DN900	One thousand and two hundred ~ 20000
DN50	Four ~ 60	DN1000	One thousand and six hundred ~ 25000
DN65	Six ~ 120	DN1200	Two thousand and five hundred ~ 30000
DN80	Ten ~ 160	DN1400	Three thousand ~ 50000
DN100	Sixteen ~ 250	DN1600	Three thousand ~ 60000
DN125	25~400	DN1800	Five thousand ~ 60000
DN150	Forty ~ 600	DN2000	Six thousand ~ 100000
DN200	Sixty ~ 1000	DN2200	One thousand three hundred and sixty-seven point seven eight ~ 136778.4
DN250	One hundred ~ 1600	DN2400	One thousand six hundred and twenty-seven point seven eight ~ 162777.6
DN300	One hundred and sixty ~ 2500	DN2600	One thousand nine hundred and ten point three eight~ 191037.6
DN350	Two hundred ~ 3000	DN2800	2306.56 ~ 236062.8

Six. Type selection table.

Model	caliber
LDE	10~2600
		Code name	Installation form
		Y	Integral type
		F	Split type
			Code name	Converter type
			ZA	circular
			ZB	Square (only for split type)
				Code name	Power supply form
				AC	(AC) 220V AC 50Hz (90~245V AC 50Hz)
				DC	(DC) 24V DC (20~36V DC)
				LD	Lithium battery powered (without signal output)
					Code name
					I
					F
					Rs
					H
					C
						Medium temperature
						Less than 65 degrees centigrade
						Less than 120 degrees centigrade
						Less than 180 degrees centigrade (only for split type).
						Code name	Lining material
						NE	Chloroprene rubber (less than 65 degrees Celsius)
						PVC	Polyvinyl chloride (less than 70 degrees Celsius)
						PU	Polyurethane wear-resistant (less than 80 degrees Celsius)
						PTFE	Polytetrafluoroethylene (less than 180 degrees Celsius)
							Code name	Electrode material
							316L	Stainless steel
							HC	Hastelloy C
							Ti	titanium
							Ta	tantalum
							Pt	platinum
Warm tip: necessary for flowmeter selection, medium, caliber (flow range), electrode material, lining material and installation method.

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