Industry-Verified Manufacturing Data (2026)

Vacuum Gauge

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Vacuum Gauge used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Vacuum Gauge is characterized by the integration of Sensor Head/Transducer and Electronics/Controller Unit. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel (housing) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A precision instrument that measures and displays the pressure level within a vacuum system.

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Product Specifications

Technical details and manufacturing context for Vacuum Gauge

Definition
A vacuum gauge is a critical monitoring component within vacuum systems that quantitatively measures the degree of vacuum (pressure below atmospheric) in a sealed chamber or system. It provides essential feedback for process control, system integrity verification, and operational safety across various industrial and scientific applications.
Working Principle
Vacuum gauges operate on different principles depending on the pressure range. Common types include: Pirani gauges (thermal conductivity for medium vacuum), capacitance diaphragm gauges (CDG, mechanical deflection for low to medium vacuum), cold cathode (Penning) or hot cathode (ionization) gauges (gas ionization for high to ultra-high vacuum). Each type converts a physical property change caused by the residual gas into an electrical signal calibrated to display pressure.
Common Materials
Stainless Steel (housing), Glass or Ceramic (sensor envelope), Tungsten or Iridium (filament for hot cathode), Special Alloys (diaphragm)
Technical Parameters
  • Pressure measurement range and unit of display (e.g., 10^-3 to 1000 mbar). (mbar, Torr, Pa) Per Request
Components / BOM
  • Sensor Head/Transducer
    The core element that physically interacts with the vacuum environment to generate a signal proportional to pressure.
    Material: Varies by type (e.g., tungsten filament, metal diaphragm, cathode grid)
  • Electronics/Controller Unit
    Processes the raw signal from the sensor, applies calibration, and generates the output for display or system control.
    Material: PCB, electronic components
  • Display or Interface
    Presents the measured pressure value to the user, either via a local digital/analog display or through the output signal to an external controller.
    Material: Glass, plastic, LEDs
  • Housing/Enclosure
    Protects internal components from the environment and provides structural integrity and mounting points.
    Material: Stainless steel, aluminum
Engineering Reasoning
1e-6 to 1000 mbar (1e-4 to 1000 hPa)
1.1e-6 mbar for ultra-high vacuum gauges, 1100 mbar for atmospheric pressure gauges
Design Rationale: Pirani gauge: Thermal conductivity change beyond calibration range; Cold cathode gauge: Discharge extinction below 1e-2 mbar; Capacitance diaphragm gauge: Diaphragm rupture at 1500 mbar differential pressure
Risk Mitigation (FMEA)
Trigger Filament oxidation at 10^-4 mbar oxygen partial pressure
Mode: Thermocouple output drift exceeding ±5% of full scale
Strategy: Gold-plated tungsten filament with 0.1 mm diameter
Trigger Ion collector contamination accumulating 1e-8 g/cm² hydrocarbon deposits
Mode: Secondary electron emission reducing ion current measurement by 30%
Strategy: Titanium nitride coating with 2 μm thickness on collector surface

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Vacuum Gauge.

industrial vacuum pressure gauge precision vacuum measurement instrument machinery manufacturing vacuum gauge stainless steel vacuum gauge hot cathode vacuum sensor

Applied To / Applications

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

Vacuum System
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 1x10^-9 Torr to 1000 Torr (full scale range), 0.1% FS accuracy
other spec: Response time: <100 ms, Power: 24 VDC ±10%, Output: 0-10 VDC or 4-20 mA
temperature: -20°C to 80°C (operating), -40°C to 100°C (storage)
Media Compatibility
✓ Clean dry gases (N2, Ar, He) ✓ High vacuum processes (PVD, CVD) ✓ Laboratory vacuum systems
Unsuitable: Corrosive/condensing environments with acids, bases, or moisture above dew point
Sizing Data Required
  • Required pressure measurement range (Torr/mbar)
  • System vacuum level and ultimate pressure
  • Compatibility with process media and cleanliness requirements

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Sensor drift
Cause: Contamination from process fluids or particulates affecting the sensing element, leading to inaccurate readings.
Electrical connection failure
Cause: Corrosion or vibration-induced wear on wiring or connectors, disrupting signal transmission.
Maintenance Indicators
  • Erratic or fluctuating readings on the gauge display, indicating potential sensor instability.
  • Audible arcing or buzzing from the gauge housing, suggesting electrical issues or imminent failure.
Engineering Tips
  • Implement regular calibration checks against a reference standard to detect and correct drift early.
  • Ensure proper sealing and use clean, dry instrument air for purging (if applicable) to prevent contamination ingress.

Compliance & Manufacturing Standards

Reference Standards
ISO 3567:2011 - Vacuum gauges - Calibration by direct comparison with a reference gauge ANSI/ASME B40.100 - Pressure Gauges and Gauge Attachments DIN 28400 - Vacuum technology; terms and definitions
Manufacturing Precision
  • Pressure reading accuracy: +/-1% of full scale
  • Leak rate: <1×10⁻⁹ mbar·L/s
Quality Inspection
  • Helium leak detection test
  • Calibration verification against NIST-traceable standards

Factories Producing Vacuum Gauge

Verified manufacturers with capability to produce this product in China

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✓ 98% Supplier Capability Match Found

T Technical Director from Singapore Feb 27, 2026
★★★★★
"Testing the Vacuum Gauge now; the technical reliability results are within 1% of the laboratory datasheet."
Technical Specifications Verified
P Project Engineer from Germany Feb 24, 2026
★★★★☆
"Impressive build quality. Especially the technical reliability is very stable during long-term operation. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Brazil Feb 21, 2026
★★★★★
"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Vacuum Gauge meets all ISO standards."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

10 sourcing managers are analyzing this specification now. Last inquiry for Vacuum Gauge from Germany (15m ago).

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Frequently Asked Questions

What materials are used in this vacuum gauge's construction?

This vacuum gauge features a stainless steel housing, glass or ceramic sensor envelope, tungsten or iridium filament for hot cathode models, and special alloys for the diaphragm to ensure durability and accuracy in industrial environments.

How does this vacuum gauge measure pressure in vacuum systems?

The gauge uses a sensor head/transducer that detects pressure changes within the vacuum system, with an electronics/controller unit processing the data and displaying results on the interface for precise monitoring in machinery manufacturing applications.

What are the key components in the vacuum gauge's bill of materials?

The BOM includes a display or interface for readouts, an electronics/controller unit for data processing, a housing/enclosure made of stainless steel for protection, and a sensor head/transducer for accurate pressure measurement in vacuum systems.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Machinery and Equipment Manufacturing sector.

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