Explore our primary mass transfer product portfolio manufactured at our Jiangxi production facility. Every packing and tray is manufactured under rigorous ISO 9001:2015 quality standards to ensure tight hydraulic tolerances and predictable HTU/HETP performance.
The plastic Pall ring is recognized internationally as an industry benchmark in random packing engineering. By opening two rows of window tabs bent inward along the cylindrical wall, the inner surface area of the ring is completely activated for vapor-liquid interaction. This architectural modification eliminates the stagnant dead zones typical of classical Raschig rings, delivering up to a 50% decrease in column pressure drop and a 30% increase in volumetric handling capacity.
| Nominal Size (mm) | Imperial Equiv. | Outer Dimensions (D × H × T) | Specific Surface Area (m²/m³) | Void Fraction (%) | Number of Pieces (pcs/m³) | Bulk Density (kg/m³, PP) | Dry Packing Factor (m⁻¹) |
|---|---|---|---|---|---|---|---|
| 25 mm | 1.0 Inch | 25 × 25 × 1.2 mm | 228 m²/m³ | 90.0% | 53,500 pcs/m³ | 68 kg/m³ | 175 m⁻¹ |
| 38 mm | 1.5 Inch | 38 × 38 × 1.4 mm | 142 m²/m³ | 91.5% | 15,800 pcs/m³ | 58 kg/m³ | 110 m⁻¹ |
| 50 mm | 2.0 Inch | 50 × 50 × 1.5 mm | 112 m²/m³ | 93.0% | 6,500 pcs/m³ | 48 kg/m³ | 82 m⁻¹ |
| 76 mm | 3.0 Inch | 76 × 76 × 2.6 mm | 73 m²/m³ | 94.5% | 1,950 pcs/m³ | 42 kg/m³ | 52 m⁻¹ |
Selecting the appropriate polymer morphology is paramount to avoiding bed collapse, thermal embrittlement, and oxidative stress cracking. Pingxiang Zhongtai extrudes and molds only premium virgin feedstocks with customizable UV-inhibitor, anti-oxidant, and anti-static additives tailored to specific chemical stream compositions.
Standard Virgin PP provides reliable thermal endurance up to 100°C, making it the most cost-effective solution for caustic scrubbers and carbon capture units. Reinforced Polypropylene (RPP) contains 15–30% coupled fiberglass, boosting compressive modulus, dimensional creep resistance, and continuous operating thermal thresholds up to 125°C.
PVDF represents the ultimate chemical defense against aggressive halogens, dry/wet chlorine gas, pure bromine, nitric acid, and concentrated sulfuric acid. Engineered for elevated continuous duties spanning -40°C to +150°C, it resists severe degradation and gamma radiation while complying with high-purity semiconductor requirements.
Rigid unplasticized PVC handles corrosive inorganic salts and dilute acids up to 60°C. For hotter acidic environments, CPVC extends thermal stability to 95°C, providing superior flame retardancy (UL94 V-0 ratings) and outstanding resistance to hypochlorite bleaching reagents in industrial pulp and water remediation applications.
Chemical plant operators across five continents deploy Zhongtai Plastic Pall Rings to achieve stringent regulatory compliance, higher product throughput, and reduced energy consumption per unit of processed mass.
In monoethanolamine (MEA) and piperazine solvent absorption systems, 50mm and 76mm PP Pall Rings minimize fan static head requirements. Their uniform open web design maximizes inter-phase contacting, yielding high CO₂ stripping efficiency across multi-megawatt flue gas installations.
PVDF Pall rings (25mm & 38mm) excel inside primary and secondary chlorine gas coolers and drying columns operating under wet, highly concentrated Cl₂ gas. They resist chlorination hardening, micro-cracking, and chemical shrinkage, sustaining continuous production without sudden column plugging.
For municipal odor scrubbing and chemical fumes containing H₂S, NH₃, or mercaptans, 38mm and 50mm Polypropylene packing provides an ideal balance of low liquid holdup and high gas handling capacity, allowing smaller scrubbing vessels to handle heavy air circulation volumes.
From our manufacturing headquarters in Pingxiang Hi-Tech Industry Park, Jiangxi Province, Pingxiang Zhongtai Environmental Chemical Packing Co., Ltd. operates a comprehensive quality tracking protocol from incoming raw polymer resin inspection to container departure.
Every production lot undergoes rigorous Melt Flow Index (MFI) verification, wall thickness gauging, and ASTM D638 tensile and compressive crush testing. Certified batch analysis records are archived for 10 years, ensuring total compliance with global engineering audit criteria.
Media is packed in heavy-duty UV-stabilized jumbo FIBC supersacks (1 m³ or 1.25 m³) or reinforced woven bags on heat-treated, fumigated pallets conforming to ISPM-15. Container stuffing utilizes high-cube shipping configurations designed to maximize container fill volume and reduce landed freight overhead.
Our polymer compounds strictly conform to REACH SVHC requirements, RoHS directives, and FDA CFR 177.1520 olefine polymer specifications when food-grade degassing or potable water stripping is designated by the client engineering specification.
Industrial mass transfer continues to evolve under stricter global carbon frameworks. Pingxiang Zhongtai is actively investing in next-generation tooling, computational fluid dynamics (CFD) modeling, and circular economy polymer streams.
Integrating micro-grooved ridges along inner tongues of 38mm and 50mm rings to promote micro-capillary liquid spreading, preventing droplet channeling under low liquid irrigation rates (<5 m³/m²·h).
Developing certified Post-Consumer & Post-Industrial (PCR/PIR) high-crystallinity polymer formulations with zero compromise on crush rating for non-critical municipal wastewater aeration applications.
Expanding automated clean-room injection molding for ultra-pure PVDF and PFA rings destined for electronic-grade chemical (EGC) purification and gigafactory battery electrolyte scrubbers.
With over two decades of dedicated mass transfer manufacturing experience, our Pingxiang engineering campus provides end-to-end capabilities: from hydraulic column simulations and rapid injection tooling to customized batch compounding.
Whether executing an urgent emergency refinery turnaround requiring expedited delivery or building grass-roots carbon abatement infrastructure, our direct factory-to-project pricing model eliminates distributor markups and guarantees engineering integrity.
Explore answers to common questions regarding sizing, chemical compatibility, pressure drop correlations, and ordering procedures for plastic Pall rings.
Complete your plant configuration with Zhongtai's comprehensive line of ceramic, metal, and engineered filtration products, engineered for severe thermal shock, VOC regenerative oxidation, and precision foundry filtration.
Consult with our senior application chemical engineers in Pingxiang for accurate column sizing, material selection, and competitive factory-direct quotations for 25mm, 38mm, 50mm, or 76mm plastic Pall rings.
