1.Stainless Steel Pall Ring Product Description

The 76mm Stainless Steel Pall Ring is a high-performance random packing material designed for mass-transfer operations in absorption towers, distillation columns, strippers, and reactors. Its metal construction (typically 304/316 stainless steel) provides superior mechanical strength, thermal conductivity, and corrosion resistance compared to ceramic or plastic alternatives.

2. Stainless Steel Pall Ring Specification

Material: Stainless Steel (SS304, SS316)

Size: 76mm diameter (optimized for pressure drop and efficiency balance).

Shape: Cylindrical rings with internal fins (5–7 inward-pointing blades) to disrupt flow and enhance turbulence.

Surface Area: 150–200 m²/m³ (higher than ceramic variants due to thinner walls).

Void Fraction: 70–80% (minimizes pressure drop while maintaining contact efficiency).

Operating Temperature: -200°C to 400°C (dependent on alloy grade).

Chemical Resistance: Resistant to most acids, alkalis, and organic solvents (except strong oxidizing acids like concentrated HNO₃).

3. Stainless Steel Pall Ring Advantages for Industrial Applications

High Efficiency: Enhanced gas-liquid contact due to turbulent flow, improving absorption/distillation rates.

Low Pressure Drop: High void fraction reduces energy consumption for fluid circulation.

Mechanical Strength: Withstands high flow rates, vibration, and thermal cycling without deformation.

Thermal Conductivity: Superior heat transfer for exothermic/endothermic reactions.

Cleanability: Smooth metal surfaces resist fouling and allow easy chemical/mechanical cleaning.

4. Stainless Steel Pall Ring Applications

Chemical Processing: Distillation of crude oil, methanol, and acetic acid.

Environmental Engineering: Absorption of SO₂/NOₓ in flue gas desulfurization (FGD) systems.

Petrochemical Industry: Hydrogenation, alkylation, and catalytic cracking.

Pharmaceuticals: Solvent recovery and purification.

Refrigeration: Dehumidification and heat exchange in cooling towers.