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As a professional manufacturer in the field of industrial automation instruments, Xi'an Xiangyuan Technology Co., Ltd. is dedicated to providing customers with comprehensive liquid level measurement solutions. Our product line covers the following core categories: Magnetic level gauge, radar level sensor, float level gauge, magnetostrictive level gauge, pressure transmitter, flow meter, switches and controllers, Internet of Things smart instrument, etc.

Magnetic Float Level Switch
Compact top/side mounted magnetic float level switch, no local level display panel. Adopts sealed float & internal reed structure for single/double point limit control, cost-effective level on-off
Single-Point Level Switch
Switches: oneContact capacity: Max.230V AC70VA, DC50W (or 24VDC 150mA)Medium density: ρ≥0.5g/cm³Process pressure: 0...4MPaGuide tube: Φ 19mm standard (optional Φ 14mm)Float: Φ 75mm standard (optional
Multi-Point Level Switch
Magnetically actuated multi-point level switch with reed contacts, configurable for 1 to 4 switch outputs and NO/NC contact modes. It bears max 230V AC 70VA / DC 50W contact load, suitable for medium
Magnetic Float Switch
Level measurement for almost all liquid mediaLevel control and monitoring for defined filling levelsPetrochemical industry, natural gas, machine building, power generating equipment, Chemical
Rotary Paddle Level Switch
Rotary Paddle Level Switch for bulk solid monitoring. IP65 aluminum junction box, SPDT 5A output, wide torque & temperature range, thread connection customizable.
Tuning Fork Level Switch
This industrial tuning fork level switch adopts a crystal vibration principle to deliver precise point level detection and upper/lower limit alarm. It features strong anti-interference ability,

Why Choose Us

Our Factory
The production area is more than 1,000 square meters and an office area is about 400 square meters. The main products are magnetic level gauges, level switches, level transmitters etc. Due to the accuracy and reliability of the products, we earn the sustainable trust from our customers for over 10 years.

Sales Market
Its products have achieved full coverage in 31 provinces across the country, and it has established long-term cooperation with more than 500 equipment manufacturers and complete set suppliers. The repurchase rate is stable at more than 75%, and some products are exported to Turkey, Russia, Iran and other countries with the equipment.

Industry Applications
The company has won high recognition from the market with professional technology and high-quality products and services, and has become a qualified supplier of Changqing Oilfield, Yangtze-Basf, Dalian Aomei, Jinduicheng Molybdenum Industry and other enterprises. At present, a complete customer service system has been established in multiple fields such as petrochemicals, power and energy, and environmental water treatment, and we maintain long-term and stable cooperation with many industry leaders.

Our company provides the following products

Float Level Switch

The Float Level Switch adopts magnetic reed switch and float ball linkage technology to achieve multi-point precise control by triggering the magnetic reed switch with the floating ball with the rise and fall of the liquid level.

Principle	Magnetically controlled reed contacts
Switches	1...4
Switch status	Normal open (NO), Normal closed (NC)
Float action	Upward control, Downward control
Contact capacity	Max.230V AC70VA, DC50W (for EX-proof 24VDC 150mA)
Medium density	ρ≥0.5g/cm³
Process temperature	Max.120℃
Process pressure	0...4.0MPa (Depending on mounting type and float-type, material)
Wetted material	304, 316L, Titanium, PVC, PP, PVDF/PTFE
L max.	3000mm
IP code	IP65
Housing material	Cast aluminium (coated)
Process connection	Flange, Thread, Bracket
Ambient temperature	-30...75℃
Guide tube	Φ 19mm standard (optional Φ 14mm)
Float	Φ 75mm standard (optional Φ 52mm)
Electrical connection	M20*1.5F (standard) 1/2NPT-F 3/4NPT-F
Explosion-proof	Exdb II CT4...T6Gb (optional)

Types of Float Level Switches

01/

Magnetic Reed Float Switch
This is the most commonly used type. It consists of a float with an internal magnet that moves with the liquid level along a guide tube containing reed switches. When the magnet reaches a reed switch, the contacts close or open, depending on the configuration.

02/

Vertical Float Switch
Installed from the top of a tank, this type has one or more floats moving along a vertical stem. Each float can control a separate switch, offering multiple level detection points.

03/

Cable Float Switch
Cable float switches use a float attached to a flexible electrical cable. As the liquid level rises or falls, the float tilts and triggers a micro switch inside.

04/

Side-Mounted Float Switch
This type is mounted horizontally through the tank wall. The float moves vertically with the liquid and triggers the switch via a lever mechanism.

Applications of Float Level Switches

Water and Wastewater Treatment

In water treatment plants, float level switches are crucial for monitoring the levels of water in tanks and reservoirs. They help maintain optimal levels for processes such as filtration and chlorination. Similarly, in wastewater treatment, these switches prevent overflows and ensure proper functioning of pumps and aeration systems. The integration of float level switches in these systems not only enhances operational efficiency but also plays a significant role in environmental protection by ensuring that wastewater is treated adequately before being released into natural water bodies.

Industrial Processes

Float level switches are widely used in industrial applications, including chemical processing, food and beverage production, and oil and gas. They help manage the levels of raw materials and finished products, ensuring efficient operations and preventing spills or accidents. In chemical processing, for instance, maintaining precise liquid levels is essential for safety and compliance with regulatory standards. Float level switches can help monitor hazardous materials, ensuring that they are contained within designated areas and reducing the risk of leaks.

HVAC Systems

In heating, ventilation, and air conditioning (HVAC) systems, float level switches monitor the levels of condensate in drain pans. By preventing overflow, they protect equipment and maintain efficient operation. This application is particularly important in commercial buildings and industrial facilities. Without effective monitoring, excess condensate can lead to water damage, mold growth, and costly repairs, making float level switches an essential component of HVAC maintenance.

Tuning Fork Switch

The Tuning Fork Switch adopts the crystal vibration principle to accurately detect the liquid level through frequency change to achieve upper and lower limit alarm.

Process connection	Thread/Flange
Process temperature	-20~150℃
Signal output	DPDT Relay contact output
IP code	IP65/IP67
Wetted material	304/316 304/316/PTFE (Flange installation)
Electrical connection	M20*1.5F(standard) G1/2"F NPT1/2"F
Explosion-proof	Ordinary type, Explosion-proof type, Safety type
Power supply	DC24V / AC220V 50Hz
Contact capacity	220VAC 5A
Fork type	Standard, Extended type (specify extended size)

Advantages of Tuning Fork Switch

High Sensitivity

Accurately detects even small amounts of material.

Versatile Applications

Can be used in a wide range of industries, including food, pharmaceuticals, and energy.

Durability

Built to operate in extreme temperature and pressure conditions.

Easy Integration

Multiple output signal options make it compatible with most industrial control systems.

Cost-Effective

Offers a reliable and affordable solution for level measurement needs.

Application of tuning fork level switch in tap water industry

Accurate Measurement Of Liquid Level
In the water industry, accurate measurement of liquid level is crucial to ensure the stability and reliability of water supply. With its unique vibration principle, the tuning fork liquid level switch can accurately detect changes in liquid level and provide accurate liquid level information for the tap water system.

Container And Pipeline Monitoring
Containers and pipes in tap water systems are critical components, and their level monitoring is particularly important. Tuning fork liquid level switches can be easily installed in containers and pipes to detect liquid levels in real time and detect potential leaks or blockages in a timely manner.

Bubbles and Bubble Response
During the tap water treatment process, the generation of foam and bubbles is inevitable. Traditional liquid level detection methods often cause misjudgments when faced with foam and bubbles.

Vibration interference resistance
Tap water systems usually operate in complex environments and may be disturbed by external factors such as equipment vibration and pipeline vibration.

High Reliability Performance
The tuning fork level switch is made of high-quality materials and advanced production technology, and has extremely high reliability and stability. In the tap water system, the tuning fork level switch can operate stably for a long time and reduce downtime due to failure. At the same time, its precise measurement and reliable signal output also provide a strong guarantee for tap water supply.

Safety Limit Protection
In tap water systems, the safety limit of liquid level is crucial. The tuning fork liquid level switch can set multiple liquid level points for monitoring. When the liquid level reaches the preset safety limit, the switch will trigger the corresponding alarm or control signal, thereby achieving safety protection for the tap water system. This helps prevent equipment damage or water supply interruptions due to fluid levels that are too high or too low.

Anti-corrosion And Explosion-proof Capabilities
Some corrosive chemicals may be used in the tap water treatment process, so the liquid level switch needs to be anti-corrosive. At the same time, in some special environments, explosion-proof performance is also necessary.

FAQ

Q: How long do float switches last?

A: As with any piece of equipment, a float switch will have a limited operating life. However, if the switch is used properly and maintained, there is no reason that it should not last for many years.

Q: Why does a float switch fail?

A: Mechanical Failure: Over time, the mechanical components of the float switch, such as the float arm or switch mechanism, can wear out or become damaged, leading to failure. This can result from normal wear and tear, corrosion, or exposure to debris or sediment in the sump pit.

Q: Are float switches AC or DC?

A: Switch Type: Float Switch. Rated Voltage: 12V – 24V DC, 125V – 250V AC (50 / 60 Hz)

Q: Can you adjust a float switch?

A: Shortening the cable means a submersible sump pump will turn on and off at lower water levels. Lengthening it will ensure it activates at higher levels and runs for longer.

Q: What is the principle of tuning fork level switch?

A: The tuning fork type level switches working principle based upon detecting the change in harmonic vibration frequency of the sensing element as a result of the presence of the target media. Tuning fork level switch operated by using two piezoelectric elements built in on vibration tube.

We're professional switches & controllers manufacturers and suppliers in China, specialized in providing high quality customized instruments. We warmly welcome you to buy advanced switches & controllers made in China here from our factory.

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