FP-Pall Ring

Pall rings well developed by BASF AG around 1940’s based on the raschig ring. They are still widely used in the industry owing to their good capacity characteristics at low- pressure drops. Punched windows on the outside facilitate better vapour flow and increase capacity as compared to raschig rings.


Key Characteristics

  • FP-Pall ring from Finepac is the industry recognised pall ring equivalent
  • High liquid hold up and residence time
  • High mechanical strength.
  • Lower sensitivity to liquid and vapour distributor quality allows use with conventional distributors.

FP-Pall Ring Applications

  • Gas treatment systems
  • Absorption and scrubbing services
  • Stripping services
  • Chemical reaction absorbers

Size Nos. / Cu.m. Surface Area (m²/m³) Void Fraction % Packing Factor (F)
13 mm 400,000 430 90 73
16 mm 210,000 345 93.1 71
19 mm 100,000 250 94 63
25 mm 51,000 208 94.5 48
38 mm 13,500 131 95 28
50 mm 6,500 98 96 20
75 mm 1,820 71 96 18

Material of construction (MOC)

Stainless Steel, Duplex Stainless Steel, Nickel Based Alloys, Titanium.

Other materials available on request.