pall ring

PXZT is specialized in manufacturing various kinds of pall ring, including ceramic/plastic/metal pall rings.

1. Ceramic pall ring can be used in high or low temperature, It can be used as drying, absorbing, cooling and regenerating tower packing in chemical, metallurgic, coal gas and air separation industry, etc.  

Main specification of Ceramic Pall Ring 

Size mm	diameter×height×thickness mm	Specific area m2/m3	Void volume m3/m3	Bulk density kg/m3	Number per volume pcs/m3	Drying packing factor   m-1
φ25	25×25×3	210	0.73	630	36000	540
φ38	38×38×4	140	0.75	590	12000	332
φ50	50×50×5	100	0.78	520	4900	210
φ76	76×76×9	70	0.80	470	1500	137

2.metallic pall ring

 Technical data of metal pall ring (304)

D*H*T (mm)	Surface area (m²/m³)	Free volume (%)	Number per m³	Bulk density (Kg/m³)
16*16*0.4	239	92.8	143000	365
25*25*0.6	219	93.4	55900	427
38*38*0.8	129	94.5	13000	365
50*50*1.0	112	94.9	6500	395
76*76*1.2	72	95.1	1830	384

Material available: carbon steel, stainless steel including 304, 304L, 410,316, 316L etc. 

Advantage:1)Lower pressure drop 2)Good liquid/gas distribution and higher mass transfer efficiency3)Versatility, easily wettable, high resistance to fouling, high temperature 4)High Mechanical Strength and temperature resistance, suitable for deeper beds Application:Absorption,Aeration,Degassing,Desorption, Distillation,Stripping,Heat Recovery, Extraction etc.

3. Plastic pall ring can be used in the packing towers in petroleum industry, chemical industry, alkali-Chloride industry, coal gas.

Physical & chemical properties of plastic random packing 

Materials    Properties	PE	PP	RPP	PVC	CPVC	PVDF
Density, g/cm3	0.94-0.96	0.89-0.91	0.92-0.94	1.32-1.44	1.50-1.54	1.75-1.78
Compression Strength,  N/mm	>6.0	>6.5	>7.0	>6.0	>8.0	>10.0
Operation temperation, °C	≥90	≥ 100	≥120	≥60	≥90	≥150

 Major technical parameters of PP Pall Ring

Specification	external diameter×height×wall thickness mm	Specific area m2/m3	Void volumn m3/m3	Bulk Density kg/m3	Number per volumn n/m3	Drying packing factor m-1
φ16	16×16×1.0	274	0.90	91	177600	376
φ25	25×25×1.2	213	0.91	85	48300	285
φ38	38×38×1.2	151	0.91	82	15800	200
φ50	50×50×1.2	93	0.90	56	6300	127
φ76	76×76×2.5	72	0.92	62	1930	92

pall ring