Editorial Technical Reference

Pressure Gauge Assembly

This page explains how Pressure Gauge Assembly 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

The Pressure Gauge Assembly is a specialized component within a Homogenizer Unit that monitors and displays the internal pressure during homogenization processes.

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Pressure Gauge Assembly in a manufacturing environment
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Product Specifications

Technical details and manufacturing context for Pressure Gauge Assembly

Definition
The Pressure Gauge Assembly is a specialized component within a Homogenizer Unit that monitors and displays the internal pressure during homogenization processes. It ensures operational safety and process control by providing real-time pressure readings. The assembly converts mechanical pressure from the homogenizer's fluid system into a readable measurement through a bourdon tube or diaphragm mechanism, which moves a pointer on a calibrated dial to indicate pressure values. This product is designed for use in machinery and equipment manufacturing, particularly in applications where precise pressure monitoring is critical. The assembly is constructed with materials such as stainless steel, brass, and tempered glass, offering durability and resistance to corrosion. Key parameters include an operating pressure range of 1.0–1.6 MPa, a dial diameter of 100–160 mm, an accuracy class of 1.6 (per EN 837-1), a process connection of G1/2 BSP (per EN 837-1), an operating temperature range of -20–60 °C, ingress protection ratings of IP54–IP65 (per IEC 60529), case material of 304 stainless steel (per ASTM A240), wetted parts material of 316L stainless steel (per ASTM A240), and a weight of 0.5–1.2 kg. These specifications are provided as reference ranges and must be verified for the specific model and application. The assembly is compatible with CIP/SIP cleaning, making it suitable for food-grade applications. It is important to note that, and beyond the operating temperature range, accuracy may degrade. For high-vibration environments, a larger dial is recommended for readability. Always confirm model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
The Pressure Gauge Assembly operates by converting mechanical pressure from the homogenizer's fluid system into a readable measurement. A bourdon tube or diaphragm mechanism responds to pressure changes, causing a pointer to move on a calibrated dial. The dial is marked with pressure units, allowing operators to read the current pressure. The mechanism is designed to provide accurate readings within the specified operating range. The assembly is connected to the fluid system via a G1/2 BSP process connection, ensuring a secure fit. The bourdon tube or diaphragm is made of 316L stainless steel, which is corrosion-resistant and suitable for food-grade applications. The case, made of 304 stainless steel, protects the internal mechanism and provides ingress protection up to IP65. The dial, with a diameter of 100–160 mm, is designed for readability even in high-vibration environments. The accuracy class of 1.6 ensures reliable measurements for general industrial use. The assembly operates within a temperature range of -20–60 °C, beyond which accuracy may degrade. The weight varies from 0.5–1.2 kg depending on dial size and connection type.
Common Materials
Stainless steel, Brass, Tempered glass
Technical Parameters
ParameterTypical rangeNotes & selection driver
Operating Pressure1.0–1.6 MPa
Dial Diameter100–160 mmLarger dial for readability in high-vibration environments
Accuracy Class1.6Class 1.6 for general industrial useEN 837-1
Process ConnectionG1/2 BSPStandard thread for homogenizer applicationsEN 837-1
Operating Temperature-20–60 °CBeyond this range, accuracy may degrade
Ingress ProtectionIP54–IP65IP65 for washdown environmentsIEC 60529
Case Material304 SSCorrosion-resistant for food-grade applicationsASTM A240
Wetted Parts Material316L SSCompatible with CIP/SIP cleaningASTM A240
Weight0.5–1.2 kgVaries with dial size and connection

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
  • Bourdon Tube Part
    Converts pressure into mechanical movement
    Material: Phosphor bronze
  • Movement Mechanism Part
    Transfers tube movement to pointer
    Material: Stainless steel
  • Dial Face Part
    Displays pressure scale and readings
    Material: Tempered glass
  • Pointer Part
    Indicates pressure value on dial
    Material: Aluminum
  • Case Part
    Protects internal components
    Material: Stainless steel
  • Connection Fitting Part
    Mounts gauge to homogenizer pressure port
    Material: Brass

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 1000 psi (0 to 69 bar)
flow rate: Up to 500 L/min
temperature: -20°C to 150°C
slurry concentration: Up to 40% solids by weight
Media Compatibility
✓ Water-based slurries ✓ Food-grade emulsions ✓ Pharmaceutical suspensions
Unsuitable: Highly corrosive acids (e.g., concentrated sulfuric acid)
Sizing Data Required
  • Required pressure range (psi/bar)
  • Process fluid viscosity (cP)
  • Homogenizer operating frequency (Hz)

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Bourdon tube fatigue cracking
Cause: Cyclic pressure fluctuations exceeding design limits, leading to metal fatigue and eventual rupture
Pointer mechanism binding/sticking
Cause: Contaminant ingress (dust, moisture, process media) or mechanical wear in gear/sector assembly causing inaccurate readings
Maintenance Indicators
  • Pointer oscillating erratically or vibrating excessively during normal operation
  • Visible fluid leakage around the gauge case or connection points
Engineering Tips
  • Install a pulsation damper or snubber to reduce pressure spikes and cyclic stress on the Bourdon tube
  • Implement regular calibration checks with deadweight tester and maintain proper sealing at connection points to prevent contamination ingress

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 ANSI/ASME B40.1: Gauges - Pressure and Vacuum Indicating Dial Type - Elastic Element DIN EN 837: Pressure gauges

Quoted from the published standard.

Manufacturing Precision
  • Pressure accuracy: +/-1.0% of full scale
  • Thread concentricity: 0.05mm TIR
Quality Inspection
  • Hydrostatic pressure test
  • Calibration verification against traceable standards
Technical documentation
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Manufacturing capability
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Inspection readiness
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Supplier transparency
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Manufacturers of Pressure Gauge Assembly

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Frequently Asked Questions

What is the operating pressure range of this pressure gauge assembly?

The operating pressure range is 1.0–1.6 MPa. Always verify the exact range for your specific model.

What materials are used in the construction of this assembly?

The assembly uses stainless steel, brass, and tempered glass. The case is made of 304 stainless steel (ASTM A240), and the wetted parts are made of 316L stainless steel (ASTM A240), which is corrosion-resistant and suitable for food-grade applications.

What is the accuracy class of this pressure gauge?

The accuracy class is 1.6, as per EN 837-1, which is suitable for general industrial use. This means the gauge has a maximum permissible error of 1.6% of the full scale. Confirm the accuracy for your specific model.

Is this pressure gauge assembly suitable for washdown environments?

The ingress protection rating is IP54–IP65 (IEC 60529), with IP65 being suitable for washdown environments. However, the exact rating depends on the model. Verify the IP rating with the manufacturer for your application.

Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Related equipment

Applied To / Applications

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

Homogenizer Unit
View system integration details

Industrial Ecosystem & Supply Chain Structure

Data Basis

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

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 12 October 2026

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