Uhk Magnetic Float Level Switch for Corrosive Media

• Type: Magnetic Float Level Switch
• Principle: Buoyancy Principle
• Wires: Two-Wires
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: UHK
• Standard: Standard
• Application: Warehouse
• Size: 86 Type
• Certification: ISO, RoHS
• Transport Package: Cardboard Box
• Specification: 50.00cm * 50.00cm * 30cm
• Trademark: Vacorda
• Origin: China
• HS Code: 9026100000
• Production Capacity: 400 Pieces Per Week
• Package Size: 50.00cm * 50.00cm * 30.00cm
• Package Gross Weight: 3.000kg

Product Description

Working principle
The UHK magnetic float level switch consists of a reed switch and a magnetic float. It is based on the buoyancy principle, using a floating ball with a magnetic component to drive the reed switch to open or close at each corresponding position in the measuring tube with the liquid level lifting, thereby realizing the detection and control of the position of the liquid level.

The UHK magnetic float switch can be configured with up to 8 switches for 8-point detection. The magnetic float level switch operates without direct contact with the measured medium, the contacts are not mechanically worn, and can operate without an external power supply.

Features
1. No external power supply, passive output contact;
2. Long life span, stable and reliable operation, easy installation, almost no maintenance
3. Independent of mediums' physical and chemical status.
4. Applicable for all kinds of bad medium environment with density ≥0.5g/cm³.
5. Available for interface detection of mediums with two different densities. 
6. Wide application range. Pressure 0~PN160 (max. up to PN320), temperature -40~+150 ° c;                                   
7. At most 8 detecting points, delivering signal independently.
8. Anti-explosion design.
9. OEM Customization.

Application
UHK magnetic float level switch and pontoon level switch are made of different materials, and can be used in almost all strong and weak corrosion-resistant mediums and none corrosive mediums.

The magnetic float switch condition
Switch condition in magnetic float level switch is normal open type, normal closed type, and transform type, which is defined as follows:
Normally open type(SPST)---From the normal level,float rises or falls and when it passes the switch, the connection will close.
Normally close type(SPST)---From the normal level,float rises or falls and when it passes the switch, the connection will switch off
Conversion type(SPDT)---When float passes the location of switch, the condition will convert.(Tubular type's standard configuration is conversion type)

Measure for protecting contactor of magnetic level switch
In order to protect magnetic switch well, avoiding damage of contactor. User should take protecting measure as the following sketch.
Technical Parameter

Switch point type:	AO -- Normally open (250VAC 0.5A 20W ) SPST
	AC -- Normally closed (250VAC 0.5A 20W ) SPST
	C -- Conversion type (250VAC 1.0A 60W) SPDT
Note: Voltage, current, power parameters are the maximum value. The switching voltage, switching current should not surpass switch wattage restriction.
Maximum switch frequency	<=1*10^9
Switch error	<=±8^±2mm
Min space between switches	50mm(customize while space is less than 50mm)
Transmitting distance	>2000m
Working power supply	No need of external power supply
Medium density	>=0.5g/cm^3
Working pressure	PN2.5~ PN160(Special for PN320)
Working temperature	-40~80 ºC, -40~120 ºC, -40~150 ºC (others for customize )
Float diameter	Ф30~Ф120(depending on pressure and density)
Installation type	Flange: DN50~DN150 HG/T20592~2009
	1-1/2'', 2'' external thread (downward install type)
	1/2'' external thread (upward install type)
	3/8'' external thread (upward install type)
Installation angle	<=±25°
Electric interface	M20×1.5 female thread
IP grade	IP65\IP67
Explosion-proof grade	Exia II CT6Ga or Exd II CT6Gb

Float ball material	Float code	Di (mm)	Do (mm)	H (mm)	Max O.P Press (PN)	O.P.Temp (ºC)	Standard Density	Critical Density(g/cm^3)
1Cr18Ni9Ti 316L	V24	9	24	24	10-16	150	1.0	0.8
	V28	9	24	28	10-16	150	1.0	0.78
	V38	9	38	27	10-16	150	1.0	0.55
	V45	16	45	50	10-16	150	1.0	0.6
	V51	16	51	60	10-16	150	1.0	0.5
	V75	16	75	75	25	150	1.0	0.55
	V125	22	125	125	25	150	1.0	0.55
	V110	16	110	110-180	10-16	150	1.0	0.8
Titanium	T95	16-22	95	110-180	40-160	150	1.0	0.5
	T110	16-22	110	110-180	40-160	150	1.0	0.5
PTFE	F48	22	48	70-100	6-16	150	1.0	0.7
PP	P48	24.5	48	60-120	6-20	≤80	1.0	0.8
	P58	24.5	58	60-120	6-20	150	1.0	0.6
	P76	24.5	76	70-120	6-16	150	1.0	0.55

Note:

1. Float ball can be customized. Acceptable when density of medium is less than 0.5g/cm3.
2. Titanium,PTFE,and PP material should be column float, the other is column or ball float.
3. The form is for indication only. Manufacturer can change the size and structure of the float ball depending on operating differential pressure and density.

Location of the switch point:
 1 switch                2 switches                  3 switches                 4 switches

 5 switches              6 switches              7 switches                8 switches

Note: 1 "X" depending on density and pressure.
     2 Manufacture may change the place of holding ring if it can reach customer requirement of switch site and condition.

Material: stainless steel  stainless steel+PTFE  PP  PVC
 N=2 or 3...or 8                N=2 or 3...or 8                N=2 or 3...or 8             N=2 or 3...or 6

Installation type	Welding flange DN50~DN150 RF PL (HG/T20592-2009)	Thread G2" or G11/2" downward install	Thread G3/8"or G1/2" Upward install
Guide pipe Dia	14mm(standard),16mm,20mm (manufacturer decides pipe diameter on switch quantity, installation type, and depth)
Max insert depth	6000mm
Float type and Dia	See page 5(customize)
Switch condition	SPST(normal open type, normal closed type); SPDT (conversion type)
Max QTY of switch	Normal open or normal close type: 8 pcs; conversion type:6 pcs (Related to insert depth, and mini distance between two switches ≥50mm)
Max voltage	See page 3
Max current	See page 3
Max volume	See page 3
Working temperature	304,304+PTFE: -40~120ºC   PP:≤80ºC   PVC: ≤60ºC High temperature type:≤150ºC(Need negotiation)
Medium density	≥0.5g/cm3
Nominal pressure	PN2.5~PN160(Max pressure: PN320) Note: while pressure>=PN25, flange should be >=DN125.
Electric interface	M20×1.5 female thread   0.5m wire
Installation angle	≤±25°
IP grade	IP65
Anti-explosion grade	Exia II CT6Ga or Exd II CT6Gb

 
Typical medium: dilute nitric acid,carbonic acid,Organic acid,Weak lye,saline water,fuming sulfuric acid,etc.


UQK side mounted type:

Material: 304,316L, 1Cr18Ni9Ti, 0Cr18Ni9, 00Cr17Ni14Mo2, Titanium etc.

Installation type	DN50/RF/PL HG/T 20592-2009(standard) or customized
Medium Density	>0.45 g/cm3
Swith condition&Qty	1*SPDT
Switch capacity	220VAC 200VA(Resistive load) 220VDC 150W
Wetted material	SS304(standard), SS316L
Shell material	SS304
Ambient temperature	-20~60ºC
Working temperature	-20~85ºC; -20~120ºC; -20~200ºC
Working pressure	1.0~16MPa (can be customized when >16MPa)
Electrical connection	M20×1.5 female thread ( Others:customized)
Installation angle	≤±10°
IP grade	IP65,IP67
Anti-explosion grade	Exia II CT6Ga or Exd II CT6Gb