Editorial Technical Reference

Hydrostatic Tank

This page explains how Hydrostatic Tank is classified within Food Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A sealed pressure vessel that maintains hydrostatic pressure for blanching processes

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Product Specifications

Technical details and manufacturing context for Hydrostatic Tank

Definition
The hydrostatic tank is a critical component of the Industrial Hydrostatic Blancher, serving as the main processing chamber where food products are subjected to precise pressure and temperature conditions for blanching, cooking, or pasteurization. It creates and maintains a controlled hydrostatic pressure environment, ensuring uniform pressure from all directions as products pass through. This uniform pressure allows for precise temperature control and prevents product damage while ensuring thorough thermal processing. The tank is constructed from Stainless Steel 316L (ASTM A240) to meet food-grade requirements and withstand the demanding conditions of food manufacturing. Key parameters include a rated capacity of 500–5000 L (selected based on batch size), an operating pressure of 1.0–1.6 MPa, and a design pressure of 1.8–2.0 MPa (GB/T 150). Operating temperature ranges from 80–121°C for high-temperature blanching, with a design temperature of 150°C for material selection. Shell thickness varies from 8–20 mm (GB/T 150) depending on pressure and diameter. The internal finish is ≤0.8 μm Ra (ISO 4287) for hygienic cleaning. Electrical supply is three-phase 380 V AC ±10% (IEC 60038), and control voltage is 24 V DC ±10% (IEC 61131-2) for PLC and sensors. Ingress protection is IP54–IP65 (IEC 60529) for washdown environments. Weight ranges from 800–5000 kg depending on capacity and pressure. All values are reference ranges and must be verified with the legal manufacturer for the specific model and application.
Working Principle
The tank operates by maintaining a column of water at a specific height to create hydrostatic pressure. As food products pass through the tank, they experience uniform pressure from all directions, which allows for precise temperature control and prevents product damage while ensuring thorough thermal processing. The pressure is generated by the weight of the water column, and the tank is sealed to maintain the required pressure environment. The design ensures that the pressure is evenly distributed, enabling consistent thermal treatment of the product.
Common Materials
Stainless Steel 316L
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Capacity500–5000 LSelect based on batch size
Design Pressure1.8–2.0 MPa1.25 times operating pressureGB/T 150
Operating Temperature80–121 °CFor blanching at high temperature
Design Temperature150 °CMaximum temperature for material selection
Material316LFood grade stainless steelASTM A240
Shell Thickness8–20 mmDepends on pressure and diameterGB/T 150
Internal Finish≤0.8 μm RaFor hygienic cleaningISO 4287
Electrical Supply380 ±10% V ACThree-phase for control systemIEC 60038
Control Voltage24 ±10% V DCFor PLC and sensorsIEC 61131-2
Ingress ProtectionIP54–IP65For washdown environmentsIEC 60529
Weight800–5000 kgDepends on capacity and pressure

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10 bar (145 psi) working pressure
flow rate: Dependent on pump and piping; typical 50-500 m³/h
temperature: Ambient to 150°C (302°F)
slurry concentration: Up to 40% solids by weight
Media Compatibility
✓ Food-grade water solutions ✓ Vegetable/root crop slurries ✓ Chemical blanching solutions (e.g., sodium metabisulfite)
Unsuitable: Highly acidic or caustic media (pH <3 or >11)
Sizing Data Required
  • Required blanching capacity (kg/h)
  • Required residence time for product (seconds/minutes)
  • Available floor space and connection points

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion-induced leakage
Cause: Chemical attack from stored fluid or external environment, often accelerated by improper material selection, coating degradation, or cathodic protection failure.
Structural fatigue cracking
Cause: Cyclic loading from pressure variations, thermal expansion/contraction, or seismic/vibration stresses, leading to crack initiation and propagation at weld joints or stress concentrators.
Maintenance Indicators
  • Visible weeping, staining, or active dripping from tank seams, welds, or penetrations indicating loss of containment integrity.
  • Abnormal audible 'pinging' or 'creaking' sounds during pressure cycles, suggesting stress or deformation issues.
Engineering Tips
  • Implement routine non-destructive testing (NDT) such as ultrasonic thickness gauging and visual inspections to monitor corrosion rates and detect early-stage cracking.
  • Maintain strict pressure and temperature operating limits, ensuring safety relief valves are calibrated and functional to prevent overpressure scenarios.

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
ASME BPVC Section VIII - Rules for construction of pressure vessels EN 13445 - Unfired pressure vessels

Quoted from the published standard.

Manufacturing Precision
  • Wall thickness: +/-5% of nominal thickness
  • Circularity: 1% of diameter
Quality Inspection
  • Hydrostatic pressure test (1.5x design pressure)
  • Ultrasonic thickness testing

Manufacturers of Hydrostatic Tank

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Frequently Asked Questions

What is the hydrostatic tank used for?

It is the main processing chamber in an industrial hydrostatic blancher, where food products are subjected to controlled pressure and temperature for blanching, cooking, or pasteurization.

What materials is the tank made of?

The tank is made of Stainless Steel 316L, a food-grade material specified in ASTM A240, suitable for hygienic processing environments.

What are the key pressure ratings?

The operating pressure range is 1.0–1.6 MPa, and the design pressure is 1.8–2.0 MPa (GB/T 150). These are reference values; confirm with the manufacturer for your specific model.

How should I verify the tank's specifications?

Always verify model-specific values and standards with the legal manufacturer or supplier, as the listed parameters are reference ranges for selection and verification.
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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