FUNNELS
212
Addition
58° 6” Long Stem Funnels The exclusive KIMAX® 58° funnel promotes faster, more effective filtering because the cone is suspended by its uppermost edge, leaving most of the conical area for filtration . • KIMAX® funnel constructed with heavy uniform walls and strong, molded rims and fire-polished stems to provide a long service life • Funnels have a high resistance to chemical attack and mechanical and thermal shock • The 58° funnel angle is a DWK exclusive, formed to an exact angle for rapid filtration • A piece of filter paper, when folded to form the filtering cone, forms a precise 60° angle. If the funnel is also 60°, as are the vast majority, then the only effective filtering area is down near the tip • Designed from ASTM Specification E1095, Type I, Class B requirements • Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
Short Stem Addition Funnels This KIMAX® funnel is constructed with heavy uniform walls, molded rims and fire-polished stems to give a long service life.
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Funnels have a high resistance to chemical attack and mechanical and thermal shock A piece of filter paper, when folded to form the filtering cone, forms a precise 60° angle. If the funnel is also 60°, as are the vast majority, then the only effective filtering area is down near the tip
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• The exclusive KIMAX® 58° funnel promotes faster, more effective filtering because the cone is suspended by its uppermost edge, leaving most of the conical area for filtration • Designed from ASTM Specification E1095, Type I, Class A requirements • Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
Length of Stem (mm)
Part Number Cone Volume (mL)
Case Qty
28950-25 28950-35 28950-45 28950-55 28950-65 28950-75 28950-90 28950-100
3 8
40 50 50 63 63 75 97 97
24 24 24 48 48 48 24 24
Cone Volume (mL)
ID at Funnel Top x Length of Stem (mm)
Part Number
Case Qty
19 36 60 90
28900-55 28900-65 28900-75 28900-100
36 60 90
55 x 150 65 x 150 75 x 150 100 x 150
48 48 48 24
225
150 225
Polypropylene Economy FLEX-COLUMN® Packing Reservoir Funnels The funnels are used for initial column packing and as a small buffer reservoir.
60° 6” Wide Top Long Stem Funnels These KIMAX® funnels are constructed with heavy uniform walls and strong, fire-polished rims and stems to provide a long service life. • Funnels have a high resistance to chemical attack and to mechanical and thermal shock • Designed from ASTM Specification E1095, Type I, Class B requirements • Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
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Available in two capacities: 100 mL for the 0.7, 1.0 cm and 1.5 cm ID columns and 700 mL for the 2.5 cm columns
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Manufactured from polypropylene
Part Number 420405-0100 420405-0700
Capacity (mL)
Column ID (cm) Used for 0.7, 1.0, 1.5
Case Qty
100 700
12
Used for 2.5
5
Set of Five Polypropylene Solvent Addition Funnels Set of five unbreakable, polypropylene solvent addition funnels for use with chromatography columns of various sizes.
Cone Volume (mL)
OD at Funnel Top x Stem Length (mm)
Part Number
Case Qty
28980-150 28980-200 28980-250
600
150 x 150 200 x 150 250 x 150
1 1 1
1500 2900
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The unique closed-end design facilitates gentle addition of solvent to the column
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Perforated funnel stem permits solvent to pour down the column wall without disturbing the top layer of silica gel Approximate dimensions are provided below Funnel Size (mL) Top OD (mm) Stem OD (mm) Stem Length (mm)
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12” Long Stem Thistle Top Funnels • KIMAX® tube with a sturdy, extra long stem • Shape of the funnel is cylindrical (similar to the “thistle top” style) • Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
Approx. Overall Height (mm)
60
68
9
20
65
120
888
9
22
95
240
108
12
38
115
960
168
16
50
175
Length of Stem (mm)
960
168
24
70
185
Part Number
Stem OD (mm)
Case Qty
Part Number 629050-0000
Funnel Size (mL) 60, 120, 240, 960, 960
Case Qty
46188-65300 46188-65400
300 400
6.5 6.5
1 1
1
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