Pall Ring

316L Pall Ring petrochemical tower packing

316L Pall Ring Corrosion‑Resistant Metal Pall Ring For Petrochemical Chemical Processing Tower

Parameter Item	Standard Specification	Optional Range	Core Remark
Material Grade	316L Stainless Steel (SS316L)	304 SS, 316 SS, 316L Alloy	Excellent corrosion & high temperature resistance
Nominal Size	25mm / 38mm / 50mm	16mm, 76mm, custom non-standard sizes	Full size customization supported
Wall Thickness	0.8mm / 1.0mm / 1.2mm	0.6mm - 2.0mm	Adjustable per working condition & pressure
Core Performance	Void Fraction: 95%-98%	Specific Surface Area: 70-120 m²/m³	High mass transfer efficiency for distillation/absorption

product details

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316L Pall Ring Product advantages

Outstanding corrosion resistance, SS316L material adapts to various corrosive medium in chemical tower, long service life under harsh working conditions.

High void fraction and large specific surface area, realizing excellent gas‑liquid mass‑transfer efficiency for distillation and absorption process.

Stable mechanical strength and high temperature resistance, not easy to deform under long‑term high‑temperature tower operation.

Flexible size and wall‑thickness options, standard sizes 16‑76mm are in stock, custom‑made specifications are acceptable for different column requirements.

Low pressure drop, good fluid distribution performance, effectively improve separation effect and reduce energy consumption of tower system.

316L Pall Ring Product Table

Parameter Item	Standard Specification	Optional Range	Core Technical Index	Main Application	Remark
Material Grade	316L Stainless Steel (SS316L)	304 SS, 316 SS, 316L Alloy, Duplex Steel	Corrosion resistance: ≥0.08mm/year (5% HCl, 20℃)	Petrochemical, chemical processing	Excellent anti-corrosion & high temperature resistance
Nominal Size	25mm / 38mm / 50mm	16mm, 76mm, 100mm, custom non-standard sizes	Size tolerance: ±0.5mm	Distillation, absorption columns	Full size customization supported
Wall Thickness	0.8mm / 1.0mm / 1.2mm	0.6mm - 2.0mm	Thickness tolerance: ±0.1mm	High-pressure tower, rectification column	Adjustable per working pressure & load
Mass Transfer Performance	Void Fraction: 95% - 98%	Specific Surface Area: 70 - 120 m²/m³	Pressure drop: 150 - 300 Pa/m	Gas-liquid separation, scrubber tower	High mass transfer efficiency, low energy consumption
Mechanical Property	Tensile Strength: ≥480 MPa	Yield Strength: ≥177 MPa	Elongation: ≥40%	Industrial mass transfer tower	Not easy to deform under long-term operation
Working Condition	Temperature: -20℃ ~ 600℃	Pressure: ≤10 MPa	pH range: 1 - 14	Desulfurization, waste gas treatment	Adapt to harsh corrosive & high temp environments

316L Pall Ring Product Introduction

The 316L Pall Ring is a widely‑used metallic random tower packing, improved based on Raschig ring structure. Made of premium SS316L stainless steel, it features window punching and inner bent tongues structure. This special design greatly expands the specific surface area and optimizes gas‑liquid flow distribution inside the column.

Compared with traditional Raschig rings, 316L Pall Ring delivers lower pressure drop, higher void fraction and superior mass‑transfer performance. It maintains stable mechanical strength under high‑temperature and corrosive operating environments, resisting deformation even under long‑term continuous running.

Available in standard sizes 16mm, 25mm, 38mm, 50mm, 76mm with multiple wall‑thickness options. Custom dimensions are acceptable according to customer’s tower design requirements.

It is extensively applied for distillation, absorption, rectification, scrubbing, gas‑liquid separation, desulfurization and waste‑gas treatment processes. Common industries include petrochemical, fine chemical, refinery, pharmaceutical and environmental protection. It is the ideal random packing choice for columns with harsh corrosive working media.