Editorial Technical Reference

Pressure Vessel/Reservoir

This page explains how Pressure Vessel/Reservoir 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 closed container designed to hold gases or liquids at a pressure substantially different from ambient pressure.

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Product Specifications

Technical details and manufacturing context for Pressure Vessel/Reservoir

Definition
A pressure vessel or reservoir is a closed container engineered to safely contain gases or liquids at pressures significantly above or below the ambient atmospheric pressure. As a critical component in pressure systems, it serves as the primary containment unit for fluid storage, processing, or pressure regulation. The vessel must maintain structural integrity under varying internal pressures and temperatures, resisting forces through its geometry and material properties. Typical materials include carbon steel, stainless steel, alloy steel, and aluminum, selected based on operating conditions and fluid compatibility. Key design parameters include design pressure (1.0–10.0 MPa), design temperature (-40 to 200 °C), volume capacity (0.5–100 m³), shell thickness (6–50 mm), inner diameter (300–3000 mm), material grade (e.g., Q345R, 304, 316L), corrosion allowance (1–3 mm), tolerance on diameter (±0.5%), leak test pressure (1.1–1.5 times design pressure), weight (500–20000 kg), and surface treatment (e.g., sandblasting, painting). These parameters are reference ranges and must be verified for the specific model and application. Design and fabrication often follow standards such as GB/T 150, GB/T 713, GB/T 1804, and ISO 8501, which serve as procurement and verification references. The vessel interfaces with piping, valves, and other components, and its safe operation depends on proper installation, maintenance, and adherence to design limits. Regular inspection is necessary to detect corrosion, fatigue, or damage. Failure to operate within specified parameters can lead to leakage or catastrophic rupture. Always confirm model-specific values and standards with the legal manufacturer or supplier.
Working Principle
Pressure vessels/reservoirs operate by containing fluids under pressure within a sealed enclosure. They are designed with specific geometries and materials to withstand internal pressure forces through tensile strength and structural integrity. The vessel maintains pressure equilibrium with connected systems while providing a controlled environment for fluid storage or processing. The design must account for pressure, temperature, and fluid properties to ensure safe operation.
Common Materials
Carbon Steel, Stainless Steel, Alloy Steel, Aluminum
Technical Parameters
ParameterTypical rangeNotes & selection driver
Design Pressure1.0–10.0 MPaDetermines wall thickness and safety valve setting.GB/T 150
Design Temperature-40–200 °CAffects material selection and thermal expansion.GB/T 150
Volume Capacity0.5–100 m³Nominal volume; actual capacity may vary.
Shell Thickness6–50 mmDepends on pressure, diameter, and material.GB/T 150
Inner Diameter300–3000 mmCommon range for vertical and horizontal vessels.
Material GradeQ345R, 304, 316LCarbon steel for general, stainless for corrosive.GB/T 713
Corrosion Allowance1–3 mmExtra thickness for expected corrosion.GB/T 150
Tolerance on Diameter±0.5 %Ensures fit with flanges and heads.GB/T 1804
Leak Test Pressure1.1–1.5 MPaTypically 1.1–1.5 times design pressure.GB/T 150
Weight500–20000 kgDepends on size and material; important for transport.
Surface TreatmentSandblasting, paintingCorrosion protection and appearance.ISO 8501

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
  • Shell
    Primary cylindrical or spherical body that contains the pressurized fluid
    Material: Carbon Steel
  • Heads/End Closures Part
    Sealed ends of the vessel that complete the pressure boundary
    Material: Carbon Steel
  • Nozzles/Connections Part
    Openings for fluid inlet, outlet, instrumentation, and access
    Material: Stainless Steel
  • Supports Part
    Structural elements that secure the vessel in position
    Material: Carbon Steel
  • Safety Devices
    Pressure relief valves and rupture discs for overpressure protection
    Material: Stainless Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pressure Vessel/Reservoir.

Pressure Tank Storage Vessel Pressure Container

Applied To / Applications

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

Pressure System
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 3000 psi (standard), higher with special designs
flow rate: N/A (static vessel)
temperature: -50°C to 400°C (depending on material)
slurry concentration: Up to 60% solids by weight (with proper agitation)
Media Compatibility
✓ Compressed air systems ✓ Hydraulic fluid reservoirs ✓ Chemical process storage
Unsuitable: Highly corrosive acids (e.g., hydrofluoric acid) without specialized lining
Sizing Data Required
  • Required working volume (gallons/liters)
  • Maximum operating pressure (psi/bar)
  • Media chemical composition and temperature

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Stress Corrosion Cracking
Cause: Combination of tensile stress (from internal pressure or residual welding stresses) and corrosive environment (e.g., chlorides, sulfides) leading to crack propagation in susceptible materials like stainless steel or carbon steel under specific conditions.
Creep Rupture
Cause: Long-term exposure to elevated temperatures (typically above 40% of the material's melting point in Kelvin) causing gradual plastic deformation and eventual failure under constant stress, often in high-temperature applications like steam vessels or reactors.
Maintenance Indicators
  • Visible bulging or distortion of the vessel shell, indicating overpressure or material degradation
  • Audible hissing or whistling from valves or seams, suggesting leaks that could lead to catastrophic failure if unaddressed
Engineering Tips
  • Implement a rigorous corrosion monitoring program using techniques like ultrasonic thickness testing and coupon sampling to track wall thinning and schedule timely repairs before failure thresholds are reached
  • Ensure proper pressure relief valve sizing, testing, and maintenance according to ASME Boiler and Pressure Vessel Code standards to prevent overpressure scenarios that accelerate fatigue and creep damage

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 16528-1:2019 Boilers and pressure vessels ASME BPVC Section VIII Division 1: Rules for Construction of Pressure Vessels EN 13445:2021 Unfired pressure vessels

Quoted from the published standard.

Manufacturing Precision
  • Wall thickness: +/-5% of nominal thickness
  • Out-of-roundness: 1% of nominal diameter
Quality Inspection
  • Hydrostatic pressure test
  • Radiographic testing (RT) for weld integrity

Manufacturers of Pressure Vessel/Reservoir

2 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.

Canature
Shanghai, CN
Also makes: Automated Valves, Water Softener (Ion Exchange Unit), Control Valve and 5 more
Listed on the company's own website · profile compiled by CNFX from public sources
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Wassermann Pump
Zhejiang, CN
Also makes: Circulation Pump, Pressure Pump, Water Pump and 9 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
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Manufacturing capability
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Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
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Frequently Asked Questions

What are the typical design pressure ranges for pressure vessels?

According to the directory reference, design pressure typically ranges from 1.0 to 10.0 MPa. However, the exact value depends on the application and must be confirmed with the manufacturer.

Which materials are commonly used for pressure vessels?

Common materials include carbon steel, stainless steel, alloy steel, and aluminum. Material grade examples include Q345R, 304, and 316L, but selection depends on operating conditions and fluid compatibility.

What standards apply to pressure vessel design and fabrication?

Standards such as GB/T 150, GB/T 713, GB/T 1804, and ISO 8501 are referenced for design, materials, tolerances, and surface treatment. These are verification references, not proof of compliance.

How should I verify the specifications of a specific pressure vessel?

Always consult the legal manufacturer or supplier for model-specific values, including design pressure, temperature, volume, and material grades. Confirm that the vessel meets applicable standards and safety requirements.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

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

Preliminary Technical Classification
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