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E-mail
sales@lingyukeji.com
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Phone
15320105518|18920902093|18920413023
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Address
Workshop on the right side of the first floor of the scientific research building in Zhonglian Industrial Park, Xiqing District, Tianjin City
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Tianjin Lingyu Technology Co., Ltd
LPS-F3 vacuum pressure switch
NegotiableUpdate on 07/24
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Overview
Suitable for pressure measurement in negative pressure situations, high and low limit alarms can be achieved by comparing the measured pressure value with the set value. The output signal is a passive dry contact signal (SPDT). It is commonly used for: 1. Vacuum pump start stop control; 2. Vacuum alarm and interlocking of pipelines or containers; The pressure switch directly outputs a switch signal, which can achieve the function of pressure transmitter+PLC/control instrument output switch control. The structure is simple, highlighting its advantages in on-site control in small-scale control. This product has the following features: ● Fully welded diaphragm, zero leakage ● Mechanical principle, no need for power supply ● High quality micro switch, small dead zone ● Diverse process interfaces, flange threads can be customized
Product Details
product overview Product overview
The LPS-F3 series diaphragm negative pressure switch adopts a fully welded stainless steel diaphragm structure, which is designed to be simple and easy to use, with few fault points, and can effectively prevent liquid leakage and misoperation; Mainly used in vacuum control applications, the set value can be adjusted, no separate power supply is required, and the contact capacity is large, which greatly facilitates on-site application for users. It is widely used in various industries such as petroleum, chemical, metallurgy, power, sugar, and pharmaceuticals that require negative pressure control.
measuring principle principle
Diaphragm pressure switch is a mechanical pressure switch that uses the mechanical deformation of the diaphragm to achieve the function of controlling contact closure and disconnection. When the pressure of the measuring medium changes, the diaphragm will produce corresponding displacement. The displacement of the diaphragm is transmitted to the micro switch through the transmission component. When the displacement stroke reaches the set value, the micro switch will be pushed, causing the contacts of the micro switch to close or open as a state variable. Adjustable pressure switches can control pressure within a fixed value or range by adjusting the stroke relationship between transmission components and micro switch contacts, in order to achieve control objectives.
performance index TECHNICAL PARAMETERS
Measurement medium: gas or liquid (in highly corrosive environments, communication is required)
Measurement range: -100-0kpa
Shell material: die cast aluminum, epoxy resin coating, outer cover with sealing gasket
NEMA protection level: meets NEMA 4X requirements
Set value accuracy: ± 0.5%
Repeatability accuracy:<1%
Pressure interface: standard 1/2NPTF internal thread, M20 * 1.5 external thread; Special interfaces can be customized
Electrical interface: M20 * 1.5 internal thread; Special interfaces can be customized
Switch output: a single pole double throw (normally open+normally closed) output;
Environmental temperature: -40 ℃ to+70 ℃
Environmental humidity: 5% to 95%
Cycle life: 1 million cycles
Protection level: IP67
Explosion proof rating: Exde IIC T6 Gb
Dust explosion-proof: ExtD A21 IP66 T80 ℃;
Contact capacity: Conventional type: 380V, 15A; Explosion proof type: 380VAC, 5A;
External dimensions APPEARANCE OF SIZE
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INSTALLATION REQUIREMENTS INSTALLATION
The materials are being prepared ..
