HYDROLYSIS CHAMBER - EN 12447-2021

(Conforming to EN 12447:2021 – Hydrolysis Resistance Test for Geotextiles)

Product Description

The Hydrolysis Chamber is a precision-controlled high-temperature water immersion system designed to evaluate the hydrolytic resistance of geotextiles and related polymeric materials under accelerated ageing conditions, in accordance with EN 12447:2021. The system ensures uniform temperature distribution and controlled exposure conditions to simulate long-term degradation due to moisture and heat.

Applicable Standards

1. EN 12447:2021 – Determination of resistance to hydrolysis in water
   

System Configuration

1. Insulated stainless steel hydrolysis tank
2. Digital temperature control system (PID based)
3. Specimen holding racks (inert material)
4. Circulation system for temperature uniformity
5. Drain and overflow system
6. Control panel with safety features
   

Technical Specifications

Temperature System

1. Temperature Range: Ambient to 100 °C
2. Operating Temperature: 80 ± 2 °C
3. Temperature Accuracy: ±1 °C
4. Temperature Uniformity: ±2 °C (as per EN requirement)
5. Control Type: PID Digital Controller
6. Display Resolution: 0.1 °C

Tank / Chamber

1. Material of Construction: Stainless Steel-SS 304(SS 316 optional)
2. Inner Tank Capacity: 50 Litres
3. Insulation: High-density mineral wool
4. Outer Body: Powder-coated mild steel / SS (Optional)
5. Lid: Hinged insulated lid with handle

Water System

1. Medium: Deionised water (as per EN ISO 3696)
2. Water Circulation: Continuous circulation pump
3. Water Level Control: Manual
4. Drain Valve: Provided for easy discharge
5. Volume Ratio Compliance:
6. Water mass : specimen mass ≥ 30:1 (as per EN 12447)

Specimen Holding System

1. Rack Material: Stainless Steel / PTFE coated
2. Design: Multi-tier perforated racks
3. Specimen Placement: Free circulation of water ensured
4. Capacity: typical 20 specimens (Customizable)

Heating System

1. Heater Type: Immersion heaters
2. Heating Capacity: 3 kW
3. Protection: Dry-run protection and over-temperature cut-off

Control Panel

1. Digital PID temperature controller
2. Timer: Programmable exposure duration (hours/days)
3. Indicators: Power, heating, fault

Safety Controls:

1. Over-temperature protection
2. Low water level cut-off
3. MCB / fuse protection

Optional Features

1. Data logging system with USB/PC interface
2. Automatic water filling system
3. Calibration port for temperature validation

Test Conditions Capability

1. Continuous operation at 80 °C for long durations (up to 112 days or more)
2. Stable hydrolysis environment with minimal temperature fluctuation
3. Uniform exposure for all specimens
   

Power Requirements

1. Supply: 220–240 V, Single Phase, 50 Hz
2. Connected Load: 3 kW
   

Accessories (Recommended)at extra cost

1. Deionised water system
2. Tensile testing machine (for post-ageing evaluation)
3. Temperature calibration probe
4. Specimen preparation tools