China Plastic Teller Ring Suppliers & Pricelist Guide

While Pall rings are cylindrical shells with internal curved fingers, Teller rings feature an open, multi-loop toroidal rosette geometry. This difference provides three major advantages: (1) higher void fraction (>93% vs 88–90% for Pall rings), resulting in 30–45% lower pressure drop; (2) continuous droplet coalescence and regeneration at radial filament nodes, which significantly improves mass transfer efficiency ($K_L a$) in liquid-film controlled absorption; and (3) virtually zero flat stagnation surfaces, rendering Teller rings far more resistant to biological fouling and salt crusting in particulate-laden gas streams.

For wet chlorine gas ($Cl_2$), chlorine dioxide, and high-concentration sodium hypochlorite ($NaOCl$), Chlorinated Polyvinyl Chloride (CPVC) or Polyvinylidene Fluoride (PVDF) are the industry-standard recommendations. Standard Polypropylene (PP) and PE are susceptible to oxidative attack and polymer embrittlement over prolonged exposure. CPVC remains thermally and chemically stable up to 90–95°C, while PVDF can operate continuously up to 140–150°C under severe halogen and strong acid concentrations.

Sizing hinges on the ratio of column inner diameter ($D$) to packing element size ($d$). As a standard engineering rule, the $D/d$ ratio should be greater than 10 to 15 to prevent excessive wall channeling. Type 25S (1") is ideal for small diameter columns ($D < 500\text{mm}$) and high mass transfer separation duties. Type 47S / 51K (2") is the global workhorse size for commercial scrubbers ranging from 600mm to 3000mm in diameter, offering the best balance of mass transfer rate and pressure drop. Type 73S and 95S are specified for giant utility FGD scrubbers, bio-trickling filters, or high-volume air stripping towers where fan power consumption is the absolute primary operational cost driver.

Deep random packed beds generate hydrostatic and mechanical weight on bottom layers, exacerbated by elevated column temperatures. Zhongtai counteracts this by: (1) formulating virgin resins with high flexural modulus and precise melt flow rates (MFI); (2) offering Reinforced Polypropylene (RPP) with glass-fiber compounds that substantially raise heat deflection temperatures ($HDT$); and (3) advising process engineers to incorporate intermediate bed support grids and redistributors every 4 to 6 meters of bed height to limit cumulative compressive loads.

Our standard production lead time is 7 to 14 days for standard PP sizes up to 50 $m^3$. Packaging options include 1.0 $m^3$ or 1.2 $m^3$ heavy-duty woven jumbo bags with lifting loops, or 0.1 $m^3$ export cartons stacked on heat-treated ISPM-15 fumigated pallets. A standard 20-foot general purpose container (20'GP) holds approximately 28–30 $m^3$, while a 40-foot high-cube container (40'HQ) accommodates 65–68 $m^3$ of packed Teller rings, optimizing oceanic freight costs.

Yes. We regularly compound flame-retardant packages rated to UL94 V-0 for installations requiring enhanced fire safety compliance. We also supply custom color formulations (natural translucent, white, grey, black) or anti-static carbon nanotube/carbon black additives. All custom batches undergo strict melt-blending before automated injection molding to ensure uniform additive distribution across each filament.