Editorial Technical Reference

Pressure Gauge/Sensor

This page explains how Pressure Gauge/Sensor is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A device that measures and indicates or transmits pressure values within a pressure system.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Pressure Gauge/Sensor

Definition
This product is a pressure gauge and pressure sensor combined in one component, designed for use in machinery and equipment manufacturing. It serves as a critical monitoring element within pressure systems, detecting and measuring pressure, then either displaying the reading locally via a dial (gauge function) or converting the pressure into an electrical signal for remote monitoring and control (sensor function). By providing real-time pressure data, it supports system safety, operational efficiency, and process control. The device is available in various configurations to suit different installation and performance requirements. Typical specifications include a measuring range of 0 to 1.6 MPa (with higher ranges on request), an accuracy class of 1.0 (0.5 optional), a process connection of G1/2, a dial diameter of 100 mm (with 63 and 160 mm options), an operating temperature range of -20 to 60 °C, and an ingress protection rating of IP65. The case is made of stainless steel (grade 304, with 316L optional), and wetted parts are typically 316L stainless steel for corrosion resistance. For sensor output, the device provides a 4-20 mA electrical signal (two-wire, HART optional) and operates on a supply voltage of 12-36 V DC. The overpressure limit is 1.5 times full scale, and the weight ranges from 0.5 to 1.2 kg depending on configuration. Materials used include stainless steel, brass, Bourdon tubes (phosphor bronze or beryllium copper), diaphragms (stainless steel or elastomer), glass, and plastics such as polycarbonate and ABS. The device complies with relevant standards such as EN 837-1 for pressure gauges and IEC 60529 for ingress protection, but these are reference standards only and do not guarantee certification. Always verify model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
Pressure gauges typically use a Bourdon tube, diaphragm, or bellows that deforms under pressure. This mechanical deformation is translated via a linkage to move a pointer across a calibrated dial, providing a local pressure reading. Pressure sensors (transducers or transmitters) convert the same physical deformation into an electrical signal using strain gauges, piezoelectric elements, or capacitive changes. This signal is then conditioned and output as a standard industrial signal, such as 4-20 mA or 0-10 V, for remote monitoring and control systems. The choice between gauge and sensor functions depends on the application's need for local indication versus remote data acquisition.
Common Materials
Stainless Steel, Brass, Bourdon Tube (Phosphor Bronze, Beryllium Copper), Diaphragm (Stainless Steel, Elastomer), Glass, Plastic (Polycarbonate, ABS)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Measuring Range0–1.6 MPaStandard ranges up to 1.6 MPa; higher on request.EN 837-1
Accuracy Class1.0Class 1.0 for industrial use; 0.5 optional.EN 837-1
Process ConnectionG1/2Other threads available.EN 837-1
Dial Diameter100 mm63, 100, 160 mm available.EN 837-1
Operating Temperature-20–60 °CAmbient; media temp up to 100°C with diaphragm seal.
Ingress ProtectionIP65Dust-tight and protected against water jets.IEC 60529
Case Material304Stainless steel; 316L optional.ASTM A240
Wetted Parts Material316LCorrosion-resistant for most media.ASTM A276
Electrical Output4–20 mATwo-wire; HART optional.IEC 60381-1
Supply Voltage12–36 V DCTypical 24 V DC.
Overpressure Limit1.5×FSUp to 1.5 times full scale without damage.EN 837-1
Weight0.5–1.2 kgDepends on configuration.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Sensing Element
    Deforms elastically in response to applied pressure. Common types: Bourdon tube, diaphragm, capsule, or bellows.
    Material: Stainless Steel, Phosphor Bronze, Beryllium Copper, Elastomer
  • Movement/Linkage Part
    Translates the deformation of the sensing element into rotational motion for the pointer (gauge) or stress for strain gauges (sensor).
    Material: Steel, Brass, Alloy
  • Case/Housing Part
    Protects internal components from environmental factors like dust, moisture, and physical impact.
    Material: Stainless Steel, Plastic (ABS, Polycarbonate), Aluminum
  • Dial/Display Part
    Provides a visual scale for reading the pressure value (gauge) or houses an electronic display (digital sensor).
    Material: Glass, Polycarbonate, Aluminum
  • Signal Conditioning Circuitry
    Amplifies, linearizes, and converts the raw electrical signal from the sensing element into a standardized output (sensor only).
    Material: Printed Circuit Board (PCB), Electronic Components
  • Pointer
    Moves across the calibrated dial to give the local pressure reading.
  • Strain Gauges Optional
    Convert the sensing element deformation into an electrical signal in the transducer variant.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pressure Gauge/Sensor.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0-1000 psi (standard), up to 10,000 psi for high-pressure variants
other spec: Accuracy: ±0.5% FS typical, Response time: <100 ms, Vibration resistance: 2g @ 10-2000 Hz
temperature: -40°C to 120°C (typical), up to 200°C with special materials
Media Compatibility
✓ Hydraulic oil ✓ Compressed air ✓ Water/glycol mixtures
Unsuitable: Corrosive chemicals (e.g., concentrated acids, chlorine gas) without specialized isolation
Sizing Data Required
  • Maximum operating pressure (including surge/peak pressures)
  • Process media compatibility (chemical composition, viscosity)
  • Required accuracy class and output signal type (analog 4-20mA, digital, etc.)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Diaphragm rupture or seal failure
Cause: Overpressure events, pressure spikes beyond rated capacity, or material fatigue from cyclic loading leading to mechanical failure of the pressure-sensing element.
Signal drift or inaccuracy
Cause: Contamination of the sensing element (e.g., process media buildup, particulates), temperature effects on electronics or materials, or degradation of internal components like strain gauges or piezoresistive elements.
Maintenance Indicators
  • Needle stuck or erratic movement (e.g., jumping, sticking at zero or max)
  • Visible fluid leakage from the gauge body or sensor housing, or audible hissing indicating a breach
Engineering Tips
  • Install a pressure snubber or pulsation damper upstream to absorb pressure spikes and pulsations, protecting the internal diaphragm or sensor from overstress and fatigue.
  • Implement regular calibration checks against a known reference standard, and ensure the gauge/sensor is rated for the specific process media and temperature range to prevent chemical attack or thermal degradation.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 5167: Measurement of fluid flow by means of pressure differential devices ASME B40.100: Pressure Gauges and Gauge Attachments EN 837: Pressure gauges

Quoted from the published standard.

Manufacturing Precision
  • Accuracy: +/-1% of full scale
  • Repeatability: +/-0.5% of full scale
Quality Inspection
  • Pressure Calibration Test against reference standard
  • Leak Test at maximum rated pressure

Manufacturers of Pressure Gauge/Sensor

12 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

BCST Group
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Yantai Wepower Electronic Co., Ltd.
Shandong, CN
Founded 2003
CE ROSH Reach Explosion-proof +3
Listed on the company's own website · profile compiled by CNFX from public sources
Cheemi Technology Co. Ltd.
Nanjing, Jiangsu, CN
Listed on the company's own website · profile compiled by CNFX from public sources
HollySys
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
LEFOO Industrial Co., Ltd.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
MacSensor
Hunan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Nanjing Wotian Technology Co., Ltd.
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
NINGBO BEILUN GC-BOB INSTRUMENT CO.,LTD.
Ningbo, Zhejiang, CN
Also makes: Pressure Gauge, Flow Meter, Temperature Gauge and 8 more
Listed on the company's own website · profile compiled by CNFX from public sources
Ningbo Rising Instrument Co., Ltd.
Ningbo, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
ORR Sensor Co., Ltd.
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Sendo Sensor
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Shandong Friend Control System Co., Ltd.
Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the difference between a pressure gauge and a pressure sensor?

A pressure gauge provides a local mechanical display of pressure via a dial, while a pressure sensor converts pressure into an electrical signal for remote monitoring or control. This product combines both functions, allowing either local reading or remote transmission depending on the model configuration.

What are the standard measuring ranges and accuracy?

The standard measuring range is 0 to 1.6 MPa, with higher ranges available on request. The accuracy class is 1.0 for industrial use, with class 0.5 as an option. These values are reference points and must be confirmed for the specific model.

What materials are used for wetted parts?

Wetted parts are typically made of 316L stainless steel, which offers corrosion resistance for most media. Other materials such as brass or elastomer diaphragms may be used depending on the application. Always verify material compatibility with the process media.

What electrical output options are available?

The sensor provides a 4-20 mA two-wire output, with HART communication as an option. The supply voltage range is 12-36 V DC. These specifications are typical and should be verified for the exact model.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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