High Precision Air Differential Pressure HVAC LEFOO Pressure Differential Pressure Gauge Industrial Vacuum Pressure Gauge

1 Piece
$36.00(1 - 49 Pieces) $22.00(50 - 499 Pieces) $20.00(500 - 999 Pieces) $18.00(>=1000 Pieces)
High Precision Air Differential Pressure HVAC LEFOO Pressure Differential Pressure Gauge Industrial Vacuum Pressure Gauge
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Warranty: 1 Year
Customized Support: OEM, ODM
Model Number: LFB
Media: AIR
Pressure Range: 0-500PA
Starting Pressure Setting: 100PA
Dimension: 120.65mm*55.6
Weight: About 560g
Appearance: Coated In Dark Grey
Working Temperature: -7℃~+60℃
Certification: UL
Basic Infomation
Certification: UL
Model Number: LFB
Payment & Shipping Terms
Product Description
Products Description
Products Description
LFB differential pressure gauge is a kind of elastic pressure gauge which makes use of simple, non-friction magnetic spiral movement and rubber diaphragm as the sensitive element to measure the pressure. It indicates the pressure of tested gas by pointer, no matter it’s positive, negative or differential pressure.

This design has the function of shock resistance, anti-shaking and overpressure proof. And it’s no necessity to fill with liquid, to avoid problem of gasification, freezing or smell. It is widely used for measuring fan&blower pressure, filter resistance, wind speed, furnace pressure, orifice differential pressure, air bubble water level, liquid amplifier or hydraulic system pressure, etc.Meanwhile, it's also used for air gas ratio and automatic valve control in the combustion process well a monitor of blood pressure and respiratory pressure in health care equipment.


Magnetic link drive mechanism eliminates friction caused by gear drive fundamentally No necessity to fill with liquid The motion of the pointer without inertia or drift No hysteresis Excellent anti-vibration and anti-shaking performance Positional pressure can be measured multiple ranges are optional, minimum 0 ~ 30Pa to maximum 0 ~ 210KPa 2 sets of pressure ports (side, back) + 3 mounting modes = free and flexible application. Excellent accuracy, reasonable price. Environment temperature -70 ~ 60°C Rated pressure -68 ~ 103KPa

Function of a differential pressure gauge

The media chambers of a differential pressure gauge are separated from each other by the pressure element. If the two pressures being measured are the same, there is no movement through the pressure element and no pressure is indicated. As soon as the two measured values are different to each other, thus one of the pressures is higher or lower, then a differential pressure will be indicated. The transmission of the pressure element displacement and the indication of the pressure is achieved via a mechanical movement.
Measuring range
±2% FS under 21 ℃ (125 pa,3% ; 4% is 60pa)
Over load
around 172KPa, the rubber plug for overpressure will be flush away
Rated pressure
Environment temperature
Related Products
Products Description
1.What kind of products do you offer ?
Zhejiang Lefoo Controls Co., Ltd. develops and manufactures reliable, high quality standard pressure sensors, pressure
transmitters, differential pressure transmitters, pressure switches Pressure Control,temperature control Devices offering
innovative solutions and components able to outfit at best machines and production systems and give a single answer to any
requirements in pressure control systems.
2.Are you manufacturer ?
Yes,We have 20 years of experience

3. How can I get the quotation?
Send your inquiry to us by the inquiry from on the right-side or the bottom of this page,

4.Could I get samples?
Yes,we have materials in stock to help you to get the samples as soon as we can.

5. Can you make customized products ?
Yes, customized is accept, please contact us for specific requirements.

6.Can I to be your distributor ?
Please contact us directly for details. Looking forward to work with distributors all over the world.
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Contact Person : Shelly Huang
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