Plastic Tower

Pall Ring

It was invented by German BASF, the first generantion Plastic Random packing. To compared with Raschig ring, the most important improvement is increase two row of inward ligule. This structure promotes liquid-gas liquidity and improve tower’s packing’s mass transfer performance.

D×H ×δ

mm

Specific area

m2/m3

Void rate

%

Bulk number

Pieces/m³

Package density

Kg/m³

F factor

m-1

16×16 ×1

188

0.91

170000

141

275

25×25 ×1.2

175

0.90

53500

82

239

38×38 ×1.4

115

0.89

15800

54

220

50×50 ×1.5

93

0.90

6500

56

127

76×76 ×2.6

73.2

0.92

1927

58

94

100×100 ×3.0

52.8

0.94

1000

50

82

Raschig ring

It is a earliest development of random packing,which its height is equal to outside diameter. Since Raschig Ring was invented by German Chemist Friedrich Rashig in 1914, Tower packing’s development had entered the track of science. Raschig Ring structure provides one of the largest surface areas among tower packing options and handles heavy loading, process upsets and temperature shocks.However, in the actual application, Such as”Wall flow, Channel flow and so on” often happened in Packed bed.

Specification

mm

Bulk Number

Pieces/m³

Bulk Density

Kg/m³

25*25*1

48500

88

50*50*1.5

6500

65

Cascade Mini Ring

It was developed by British company MTL Ltd, which also called CMR. It increase turnups on the top and bottom postion. It is also increase its strength, but also damage its symmetry. This changing is not only increase void ratio and reduce air assistance, but also improve liquid-film updating.

D×H ×δ

mm

Specific area m2/m3

Void rate

%

Bulk number

Pieces/m³

Bulk density

Kg/m³

Dry packing  factor m-1

16×8.9 ×1

370

0.85

299136

135.6

602.6

25×12.5 ×1.2

228

0.90

81500

97.8

312.8

38×19 ×1.2

132.5

0.91

27200

57.5

175.8

50×25 ×1.5

114.2

0.927

10740

54.8

143.1

76×37 ×2.6

90

0.929

3420

68.4

112.3

Ralu Ring

It is an improved Pall ring. The mainly improvement is to increase two ends turn-ups and wall’s thickness. At an unchanged separation efficiency, the bed height can be reduced, thus decreasing the pressure drop.

Size

Weight/ m³

Number/m³

Surface area m²/m³

Void ratio %

15

80

170000

320

94

25

56

36000

190

94

38

65

13500

150

95

50

60

6300

110

95

90

40

1000

75

90

125

30

800

60

97

Teller rosette ring

Teller rosette ring is made by 12 small rings, which invented by American Teller A J in 1956,like a ball surrounded by helical springs which are connected by end to end.Due to the structure of polycyclic enabling, it will enlarge gas & liquid contacting area and prolong liquid retention time.Therefore, it was recognized a ideal packing in Gas washing,purification tower.

D×H ×δ

mm

Specific area m2/m3

Void rate

%

Bulk number

Pieces/m³

Bulk density

Kg/m³

25×9 ×(1.5×2)

269

0.82

170000

103

47×19 ×(3×3)

185

0.88

32500

88

51×19 ×(3×3)

180

0.89

25000

75

73×28 ×(3×4)

127

0.89

8000

80

95×37 ×(3×6)

94

0.90

3600

53

145×48 ×(3×6)

65

0.95

1100

55

TSKE Teller rosette ring

Type

Outsider Diameter

mm

Height

mm

Num. Of filling

Pieces/m3

Surface area

m2/m3

Void

%

Weight

Kg/m3

S-O

47

19

32500

185

88

104

S

51

19

25000

180

89

100

S-II

59

19

17500

150

92

72

M

73

27.5

8000

127

89

92

L

95

37

3600

94

90

77

L-II

145

48

1100

100

93

68

Tooth Type teller rosette ring

It is an improved product of ordinary teller rosette ring. The most obvious difference is Tooth Type structure. This structure’s feature in not only increase gas & liquid contacting point and area, but also largely improve gas & liquid separation performance. It is an excellent packing apply in Odor control, air stripping.

Type

Size

mm