Which alumina grade of inert ceramic ball should I choose for catalyst bed support?

Standard 17–23% Al2O3 inert balls suit most hydrotreating and reforming catalyst supports. Choose 23–30% for higher crush strength, and 99% alumina where high-temperature steam could cause silica leaching that would poison downstream catalysts.

What information do you need to recommend tower packing?

Please share the tower diameter and bed height, the service (distillation, absorption, stripping or scrubbing), the medium and its corrosivity, operating temperature and pressure, and any pressure-drop or capacity targets. Our engineers then propose packing type, material and size.

Can I receive samples and technical data sheets before ordering?

Yes. Samples of standard sizes and technical data sheets covering chemical composition, bulk density, crush strength and other key properties can be provided for evaluation before a production order.

How are ceramic and metal packing products packed for export?

Depending on product and volume, we use cartons, jumbo bags, plastic drums or wooden cases on fumigation-free or fumigated pallets, with clear marking for each size and batch to simplify site receiving.

Where is Zhongtai located and can buyers visit the factory?

We are based in Pingxiang, Jiangxi Province, a recognized Chinese hub for industrial ceramics and chemical packing. Buyers and third-party inspectors are welcome to visit; Korean customers audited our ceramic production in July 2018.

Wholesale Metal Pall Ring 16mm 25mm 38mm 50mm High Efficiency Metal Tower Packing for Chemical Processing Factory, Quotes

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Wholesale Metal Pall Ring 16mm 25mm 38mm 50mm High Efficiency Metal Tower Packing for Chemical Processing Factory, Quotes

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Product Description

Metal Pall Ring is an upgraded cylindrical random packing, improved from traditional Raschig Ring with special window openings.

Its unique windowed structure enables better gas-liquid mixing and uniform distribution, significantly enhancing mass transfer efficiency while reducing pressure drop.

Made of high-quality stainless steel, carbon steel and other metal materials, it features high mechanical strength, corrosion resistance and excellent temperature adaptability for harsh industrial conditions.

Widely used in chemical distillation towers, absorption towers, petrochemical refining systems and environmental protection projects requiring high-efficiency mass transfer.

Size (Inch/mm)	Bulk density (kg/m³)	Number (per m³)	Surface area (m²/m³)	Free volume (%)	Dry Packing Factor (m⁻¹)
1/4" (6×6×0.3)	900	4,000,000	904	88.6	1307.4
3/8" (10×10×0.3)	480	768,000	482	93.8	583.8
1/2" (13×13×0.3)	420	410,000	415	94.8*	489.2
5/8" (16×16×0.3)	348	201,000	344	95.5	393.2
1" (25×25×0.4)	288	53,500	212	96.2	229.8
1" (25×25×0.5)	367	53,500	216	95.0	237.2
1" (25×25×0.6)	439	53,500	219	94.2	244.1
1.5" (38×38×0.4)	193	15,180	143	97.2	148.4
1.5" (38×38×0.5)	246	15,180	145	96.7	151.7
1.5" (38×38×0.6)	328	15,000	146	95.9	154.6
2" (50×50×0.5)	185	6,500	106	97.5	128.5
2" (50×50×0.8)	315	6,500	108	96.8	130.5
2" (50×50×1.0)	380	6,500	132.5	96.0	134.0
3" (76×76×1.0)	265	1,920	69	97.4	79.6
3.5" (89×89×1.0)	224	1,220	61	97.1	66.2

Frequently Asked Questions

1. What makes the Metal Pall Ring superior to the standard Raschig Ring?

The Metal Pall Ring features stamped internal fingers and open window walls. This unique geometry allows for better internal fluid distribution, significantly reducing pressure drop and increasing capacity and mass transfer efficiency compared to closed-wall Raschig rings.

2. Which materials can Metal Pall Rings be manufactured from?

They can be fabricated from a variety of metals depending on process requirements, including carbon steel, stainless steel (SS304, SS316, SS316L), aluminum, and other special alloys for high corrosion and heat resistance.

3. What are the common industrial applications for this packing?

Metal Pall Rings are widely utilized in chemical processing towers, petrochemical distillation, CO2 absorption columns, gas stripping units, and environmental scrubbers where high capacity and low pressure drops are critical.

4. How do I select the right size of Metal Pall Ring?

Selection depends on column diameter, required mass transfer stages, capacity, and acceptable pressure drop limits. Smaller rings provide a higher surface area for better separation, while larger rings offer higher throughput and lower pressure drops.

5. Can Metal Pall Rings withstand high temperature and vacuum operations?

Yes, because they are constructed of high-grade metal, they maintain structural rigidity and chemical inertness under extreme thermal conditions and operate effectively in both high-pressure and vacuum distillation systems.