蒙自LPS-M2 Series Pressure Switch
● Fully welded diaphragm, zero leakage
●Mechanical principle, no power supply required
● High-quality microswitch with minimal dead zone
● The process interface is versatile, and both flanges and threads can be customized.
● Switching difference is adjustable
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Product Description
Product Overview Product overview
The LPS-M2 series diaphragm pressure switches are manufactured by secondarily filling the basic pressure switch with oil through a secondary diaphragm. The wetted parts can be equipped with different diaphragms tailored to the specific properties of the medium, enabling them to handle challenging operating conditions such as corrosive, viscous, easily crystallizing, or particulate-laden media that may cause blockages. Inert oil is used inside the diaphragm to transmit pressure, ensuring that corrosive substances come into contact only with the specially engineered diaphragm material. The deformation of the diaphragm is transmitted via the oil to the sensor, allowing for various alarm or interlock control functions, including high, low, high-high, and low-low alarms. The setpoints are adjustable, requiring no separate power supply, and the contacts feature a large current-carrying capacity, making these switches convenient for field applications. They are widely used in industries such as petroleum, chemical processing, and metallurgy for differential pressure control applications—and also support adjustable differential switching settings.
Measurement Principle Principle
The diaphragm-type pressure switch is a mechanical pressure switch that uses the diaphragm's mechanical deformation to control the closing and opening of its contacts. When the pressure of the measured medium changes, the diaphragm undergoes a corresponding displacement. This displacement is then transmitted via a linkage mechanism to a microswitch. Once the displacement reaches a preset value, it actuates the microswitch, causing its contacts to either close or open—thus signaling the pressure level. Additionally, adjustable pressure switches allow users to fine-tune the relationship between the linkage mechanism and the microswitch contact travel, enabling precise pressure control at either a fixed value or within a specific range, thereby achieving the desired operational purpose.
Performance Metrics TECHNICAL PARAMETERS
Measurement medium: Gas or liquid (For highly corrosive applications, please confirm beforehand).
Measurement range: 0–40 MPa
Working viscosity: ≤10E3 m²/s
Housing material: Die-cast aluminum, epoxy resin coating, with a sealing gasket on the outer cover
NEMA Protection Rating: Meets NEMA 4X requirements
Set value accuracy: ±0.5%
Repeatability accuracy: <1%
Pressure interface: Standard M20×1.5 external thread or flange; special interfaces available upon request.
Electrical interface: M20×1.5 internal thread; special interfaces available upon request
Switch output: One single-pole double-throw (normally open + normally closed) output;
Switching component: Microswitch
Ambient temperature: -40°C to +70°C
Environmental humidity: 5%–95%
Cycle Life: 1 million cycles
Protection Rating: IP67
Explosion-proof rating: Exde IIC T6 Gb
Dust Explosion Protection: ExtD A21 IP66 T80℃;
Contact capacity: Standard type: 380V, 15A; Explosion-proof type: 380VAC, 5A;
External dimensions APPEARANCE OF SIZE
Installation Requirements INSTALLATION
1. Do not operate with power on.
2. Weld the pressure-tapping pipe, and it’s best to install a shut-off valve on the pipe, allowing for easy removal of the valve during maintenance.
3. Install the switch in a location with minimal vibration and temperature fluctuations.
4. Please do not turn the housing-fixed switch directly; instead, use a wrench to loosen the connecting hex below.
Tianjin Ling Yu Technology Co., Ltd.
Operator:86-22-58554679
Fax: 022-58285528
Manager Ding: 86-18902041592
WhatsApp：8618902041592
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Factory Address: No.5 Yingbin Road, Xiqing District, Tianjin
E-mail:sales@lingyukeji.com
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