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Lefoo Clamp Type Sanitary Flat Film Pressure Transmitter LFT2020

LEFOO LFT2020 sanitary flat film pressure transmitter adopts a high-performance oil-filled diffusion silicon core, and the internal special integrated circuit converts the sensor millivolt signal into standard voltage, current or 485 signal, which can be directly connected with the computer interface card, control instrument , intelligent instrument or PLC, etc. Flat pressure sensor is convenient to connect. The process connection of the pressure transmitter adopts aseptic chuck diaphragm seal, which is small in size, light in weight, and all stainless steel sealing structure, which can work in corrosive environment. The product is easy and simple to install, has very good vibration and shock resistance, and is widely used in the food, dairy, chemical and pharmaceutical industries.

Lefoo Clamp Type Sanitary Flat Film Pressure Transmitter LFT2020 Feature

* High temperature and ordinary temperature models are available

* Adopt ASIC digital compensation technology

* Excellent corrosion and wear resistance

* Strong anti-interference and good long-term stability

* 50.5mm chuck connection, convenient installation and cleaning

The part in contact with the tested object is made of 316L material, which is suitable for medical and health industries

Specification of Clamp Type Sanitary Flat Film Pressure Transmitter LFT2020

Technical parameter

LEFOO Clamp Type Sanitary Flat Film Pressure Transmitter LFT2020
Measurement Range-100Kpa…0~10KPa…7MPa
Overload Pressure1.5 time of full scales
Working Temperature-20~+85℃
Medium Temperature-40~+100℃/-40~+150℃
MediumAll corrosive mediums can be compatible with 316 stainless steel, Fluoroelastomer or NBR.
LEFOO General Type Clamp Type Sanitary Flat Film Pressure Sensor LFT2020
Electrical propertiesTwo-wiredThree-wiredFour-wired
Output Signal4~20mA0.5~4.5V0~10VRS485
Power Supply10~36VDC4.75~5.25VDC12~36VDC10~30VDC
Electrical ConnectionDIN43650A (Big Hirschmann), M12 waterproof outlet, GX12 aviation connector (three cores/four cores), M12 four-core aviation connector
LEFOO Explosion-proof Type Clamp Type Sanitary Flat Film Pressure Sensor LFT2020
Electrical propertiesTwo-wiredThree-wiredFour-wired
Output Signal4~20mA0~10VRS485
Power Supply10~30VDC14~36VDC10~36VDC
Electrical ConnectionDirectly outlet
Protection ClassIP65
Pressure Connection50.5mm clamp
Pressure FormGauge Pressure G/Absolute Pressure A
CertificationEU electrical safety standards CE



Selection Guide

Code and DescriptionRemark
LFT2020Clamp Type Sanitary Flat Film Pressure SensorModel


A4A4 = 4~20mA(Two-wired)Output mode
V05V05 = 0.5~4.5V(Three-wired)
V0V0 = 0~5V(Three-wired)
V10V10 = 0~10V(Three-wired)
RSRS485 = RS485(Four-wired)

KK = kpaUnit
PP = psi
BB = bar
MM = Mpa

0.50.5= ±0.5%F.S.Accuracy
1.01.0= ±1.0%F.S

D1D1 = DIN43650A Big HirschmannElectrical connection
MM = M12 Waterproof outlet
C3C3 = GX12 three cores aviation connector
C4C1 = GX12 four cores aviation connector
HH = M12 four cores aviation connector

K2K2=50.5mm clamp
Pressure connection

NWithout displayDisplay
D1General digital display type
D2Explosion-proof digital display type

1.01.0 = 1mCable Lenth
2.02.0 = 2m

Selection Example

Features of Clamp Type Sanitary Flat Film Pressure TransmitterLFT2020

  • High temperature and ordinary temperature models are available

  • Adopt ASIC digital compensation technology

  • Excellent corrosion and wear resistance

  • Strong anti-interference and good long-term stability

  • 50.5mm chuck connection, convenient installation and cleaning

  • The part in contact with the tested object is made of 316L material, which is suitable for medical and health industries

Applications of Clamp Type Sanitary Flat Film Pressure TransmitterLFT2020

Working with LEFOO

Different from another kind of diaphragm pressure transducer, Pressure Transmitter Sensor LFT2020 is perfectly applied with the following equipment.LEFOO is a premier provider of metal diaphragms pressure transducers around the world. We are pleased to provide top quality diaphragm pressure transducer for:

Static liquid and fluid pressure monitoring;

Glue dispenser;

Food industries;

Pharmaceutical Industries;

Pulp and paper industries;

Wastewater processing;

Petrochemical industries.

Commercial manufacturing and production

How Does a Pressure Transducer Work?

Pressure levels and fluctuations are registered through the deformation of a diaphragm and attached silicon sensing core. The displacement of the diaphragm and core is proportionally converted into electrical current. That electrical signal is analyzed to determine accurate pressure measurements.

Diaphragms for pressure transducers can be composed of either metal or non-metal materials. Non-metal diaphragms are durable but tend to be less elastic than metal diaphragms. This makes them less desirable for applications that require precise measurements with low flow volume.

What is a Metal Diaphragm?

Metal diaphragms are circular plates composed of thin, flexible metal that exhibit deformation when under pressure. Diaphragms are used for both sealing and pressure transference. Diaphragm seals prevent fluid from leaking into other parts of the system while simultaneously preventing contamination of the fluid itself. Within a pressure sensor, diaphragms isolate the system and transfer the effects of pressure changes to the gauges, where the changes are converted into electrical current for analysis.

Transducer Diaphragms

Metal diaphragms can be specially tailored to meet the needs of a wide range of industries and applications. There are two primary metal diaphragm designs: High-Sensitivity Low-Pressure (HSLP) and Low-Sensitivity High-Pressure (LSHP).

What are High-Sensitivity Low-Pressure Diaphragms?

HSLP diaphragms are used for applications that require the diaphragm to operate with a great deal of flexibility under low-pressure conditions. They are more frequently used than their LSHP counterparts and are particularly useful for low-pressure applications that require a high degree of precision, such as food production and pharmaceutical manufacturing.

What are Low-Sensitivity High-Pressure Diaphragms?

LSHP diaphragms must be more rigid and capable of retaining their shape and position in high-pressure applications. Their durability makes LHSP diaphragms valuable as protective barriers in high-pressure equipment. They can also be particularly useful for the conversion of pressure displacement into electronic signals. LHSP diaphragms are often designed to open at precise pressures, making them useful for applications that require highly accurate pressure measurements. Pressure-based medical equipment and systems that operate in extreme environments also benefit from the use of LHSP diaphragms.

Types of Tooling for Metal Diaphragms

We use two highly specialized tooling methods to manufacture quality metal diaphragms. The method used depends greatly on the intended thickness of the component and expected production volume.

Metal-to-Rubber Tooling

For prototyping, sampling, and lower production volumes of less than 50,000 annually, metal-to-rubber tooling is appropriate for diaphragms with a thickness greater than 0.0015 inches. This process is less expensive than other tooling methods and ideal for swift small-scale production of highly accurate components.

Metal-to-Metal Tooling

Metal-to-metal tooling is ideal for production volumes that exceed 50,000 components annually, and for diaphragms with a thickness less than 0.0015 inches. This type of tooling can be relied upon to produce highly accurate components within tight tolerances for burr height, part configuration, and durability.

Applications and Capabilities of Metal Diaphragms

Metal diaphragms are highly versatile and have a broad range of uses in mechanical and industrial equipment, medical devices, and pressure transducers. Common uses of metal diaphragms include:

Pressure regulators

Conversion of movement into electrical signals

Protective fluid barrier

Flexible membrane for fluid pumps

Protective barriers and failure points

Due to their combined durability and flexibility, metal diaphragms can endure repetitive cycling for millions of strokes and are capable of operating accurately in extreme environments where they may be exposed to broad temperature fluctuations, corrosive materials, and extreme pressure.

Our engineering and manufacturing capabilities are second to none and our highly trained staff is committed to the accurate production of reliable pressure transducers from the initial design through prototyping and final production. Our quick-change tooling allows us to produce a variety of products simultaneously for quick turnaround and reduced lead times.

We specialize in the analysis and design of pressure sensing solutions to meet the varied needs of our customers. Read more about us to learn about our commitment to innovative solutions.

For more information on our metal diaphragms pressure transducer and other quality pressure transducers, contact us today or request a quote.

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