MG8310 Series Multi-Float Level Switch
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MG8310 Series Multi-Float Level Switch

The MG8310 multi-point floating ball level switch is a liquid level
control instrument with a simple structure and convenient installation. The switch adopts redundant judgment and uses multiple floating balls to control multiple control points separately, making the control more reliable and safe.
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Product Features

Redundant Multi-Float Control for High Reliability

Multiple floating balls enable multi-point redundant level detection, significantly reducing false triggering risks and ensuring stable operation in complex process conditions. The system maintains reliable performance under operating pressures up to 6.3 MPa and temperatures from -40 °C to +150 °C.

Wide Material Options for Corrosive Media

The probe rod is made of 316L stainless steel as standard, with optional materials including titanium, Hastelloy, duplex stainless steel, and PTFE lining. These materials provide excellent resistance to strong acids, alkalis, and corrosive liquids, ensuring long-term durability in harsh environments.

High-Sensitivity Switching Performance

Equipped with high-reliability switching elements, the device delivers stable and precise level switching with a basic measurement error of ±10 mm and a contact life of ≥10⁵ cycles, suitable for frequent switching applications.

Industrial-Grade Electrical Output

Supports contact output with capacity of 1A @ 220VAC or 0.5A @ 24VDC, compatible with PLC and DCS systems. The device meets lightning protection standards EN61000-4-4/5 Level 4, ensuring strong immunity to electrical disturbances.

Flexible Installation and Adjustable Control Range

Supports top-mounted and side-mounted installation with probe lengths from 500 to 6000 mm, allowing flexible configuration for different tank sizes. With protection ratings up to IP67/IP68, installation and commissioning are simple, and the level control range can be easily adjusted on-site.

Technical Specifications


General Specification
ProductMG8310 Series Multi-Float Level Switch
Measured parameterLevel,interface
Case materialHigh pressure cast aluminum
Medium densityMin.Density≥400Kg/m3
Viscosity≤0.4Pa S
Electrical interface3/4"NPT
316LSST,titanium,304LSST,tantalum,zirconium 702 alloy,HaC-276 alloy,600 alloy,400 alloy,201 nickel 20 alloy,HaC-
22  alloy,2507  dual  phase  SST,PTFE  lined  anti-corrosion,etc
Installation            modeTop-mounted,side-mounted
Probe rod length 19.6~236°(500~6000mm)optional
Electric
Contact Capacity          220VAC1A Resistive,24VDC0.5A
Output signal    Normally open     Nomally close
Contact life     ≥10⁵times
Lightning
protection  Meet the requirements of EN61000-4-4(GB/T17626.4)Severity Level 4 and EN61000-4-5(GB/T17626.2)Severity Level4
device
Environment
Operation temp.     -112~302F(-40~150℃)
Environment temp-40~176F(-40~80C
Storage temp.-40~176F(-40~80℃)
Humidity0~100%relative humidity
Pressure
Operation press0.63bar(0~6.3MPa)
Measurement perfomance
Basic erro±10mm
Explosive-proof certification
FM        American Industrial Association Certification
CEX        Explosion proof
CEI        Intrinsically safe
CSA        Canadian Standard Association
IEI         IS Intemational ElectromechanicalCommission
SIL        SIL Certification
Machinery
Wet body Material316LSST、Ti、304LSST、PTTE and"O'ring sealing material
Overall dimensionsRefer to P8,Product Dimensional Drawing
Process connectionThe flange code can be found in Table 1 or Table 2 of the process connection flange code on pages P10 to P11
3/4"NPT adjustable compression joint
The height above the flange is detailed in the product dimension diagram on page P7
Factory sealing    Oniginal factory seal
Protection gradeIP67/IP68


Applications

The MG8310 Series Multi-Float Level Switch is designed for reliable multi-point level control in harsh industrial environments. With redundant multi-float sensing, explosion-proof certifications, and corrosion-resistant materials, it operates stably under temperatures from -40 °C to +150 °C, pressures up to 6.3 MPa, and protection ratings of IP67/IP68. It supports liquids with density ≥ 400 kg/m³ and viscosity ≤ 0.4 Pa·s, ensuring accurate and safe level monitoring across diverse industries.

Oil & Gas / Petrochemical

The MG8310 is widely used in storage tanks, separators, and chemical dosing systems. With FM, CSA, IECEx, and SIL certifications, it ensures safe operation in hazardous areas. Multi-float redundant detection improves reliability under fluctuating process conditions.

Chemical Industry

Featuring wetted materials such as 316L, titanium, Hastelloy, duplex stainless steel, and PTFE lining, the MG8310 withstands strong acids and alkalis. It delivers stable level control with a basic accuracy of ±10 mm in corrosive environments.

Water & Wastewater Treatment

With IP67/IP68 protection and probe lengths from 500 to 6000 mm, the MG8310 supports multi-point level control in tanks, pump stations, and sludge systems, enabling automatic pump control and alarm functions.

Food & Pharmaceutical

Using hygienic materials like 316L stainless steel and PTFE, the MG8310 ensures contamination-free level monitoring. Its long contact life (≥ 10⁵ cycles) and stable switching performance meet GMP and food safety requirements.

Pulp, Metallurgy & Power Industry

The MG8310 performs reliably in high-temperature, high-humidity, and high-vibration environments. Its robust aluminum housing and lightning protection compliant with EN61000-4-4/5 Level 4 ensure stable operation in industrial and power applications.

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chunhua.zhang@mega-tek.cn
hemin@mega-tek.cn
No.618, Kelin West Road, Wenjiang District,
Chengdu, Sichuan Province, China

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