F57
FAX: 908-806-6631
www.sisweb.com
Dry-Ice & LN2 Cooled Foreline Traps
Liquid Nitrogen Cold Trap
S
IS™ cold traps are on the “cold thimble” design. The surface of the cold
thimble containing liquid nitrogen at -187°C, being exposed to the vac-
uum system, rapidly condenses molecules in the vapor phase. This
action provides the trapping effect and cryopumping especially for water vapor
the most common condensable in vacuum systems. Pumping speed for water
vapor at the trapping surface is 95 liters/sec. per sq. inch. The vapor pressure
for water vapor at the cold thimble is reduced to 10
-21
Torr, “theoretical,” produc-
ing a low base vacuum. Other gases found in vacuum processes will be subli-
mated or liquefied at the cold trapping surface. This effect provides a convenient
trapping or collecting mechanism.
Part
No.
Description
LNT475
Part #LNT475—Click for details
DISCONTINUED
Unit of Measure:
EA
4" LN2 Trap with 3/4" O.D. Tube Port
LNT475K
Part #LNT475K—Click for details
Current Price: $975.00
Unit of Measure:
EA
Est. Ship Weight=8 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
4" LN2 Trap with NW16 Port
LNT4100
Part #LNT4100—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=8 lbs
4" LN2 Trap with 1" O.D. Tube Port
LNT4100K
Part #LNT4100K—Click for details
Current Price: $1296.00
Unit of Measure:
EA
Est. Ship Weight=8 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
4" LN2 Trap with NW25 Port
LNT4150
Part #LNT4150—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=8 lbs
4" LN2 Trap with 1 1/2" O.D. Tube Port
LNT4150K
Part #LNT4150K—Click for details
Current Price: $937.50
Unit of Measure:
EA
Est. Ship Weight=8 lbs
Quantity in Stock=2
4" LN2 Trap with NW40 Port
Part
No.
Description
LNTA475
Part #LNTA475—Click for details
Current Price: $690.00
Unit of Measure:
EA
Est. Ship Weight=8 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
4" LN2 Rt. Angle Trap w/ 3/4" O.D. Tube Port
LNTA475K
Part #LNTA475K—Click for details
Current Price: $817.50
Unit of Measure:
EA
Est. Ship Weight=8 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
4" LN2 Rt. Angle Trap with NW16 Port
LNTA4100
Part #LNTA4100—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=8 lbs
4" LN2 Rt. Angle Trap with 1" O.D. Tube Port
LNTA4100K
Part #LNTA4100K—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=8 lbs
4" LN2 Rt. Angle Trap with NW25 Port
LNTA4150
Part #LNTA4150—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=8 lbs
4" LN2 Rt. Angle Trap with 1 1/2" O.D. Tube Port
LNTA4150K
Part #LNTA4150K—Click for details
Current Price: $975.00
Unit of Measure:
EA
Est. Ship Weight=8 lbs
Quantity in Stock=1
4" LN2 Rt. Angle Trap with NW40 Port
Part
No.
Description
LNT6150
Part #LNT6150—Click for details
Current Price: $1200.00
Unit of Measure:
EA
Est. Ship Weight=16 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
6" LN2 Trap with 1 1/2" O.D. Tube Port
LNT6150K
Part #LNT6150K—Click for details
Current Price: $1430.82
Unit of Measure:
EA
Est. Ship Weight=16 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
6" LN2 Trap with NW40 Port
LNT6200
Part #LNT6200—Click for details
Current Price: $1065.00
Unit of Measure:
EA
Est. Ship Weight=16 lbs
Quantity in Stock=1
6" LN2 Trap with 2" O.D. Tube Port
LNT6200K
Part #LNT6200K—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=16 lbs
6" LN2 Trap with NW50 Port
Part
No.
Description
LNTA6150
Part #LNTA6150—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=16 lbs
6" LN2 Rt. Angle Trap w/ 1 1/2" O.D. Tube Port
LNTA6150K
Part #LNTA6150K—Click for details
Current Price: $1448.00
Unit of Measure:
EA
Est. Ship Weight=17 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
6" LN2 Rt. Angle Trap with NW40 Port
LNTA6200
Part #LNTA6200—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=16 lbs
6" LN2 Rt. Angle Trap with 2" O.D. Tube Port
LNTA6200K
Part #LNTA6200K—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=16 lbs
6" LN2 Rt. Angle Trap with NW50 Port
A
A
B
C
C
D
B
D
Dry-Ice Cooled Foreline Trap
D
ry-ice and alcohol is all that is needed to cool this cold trap to -100°C, thus trapping most volatile
materials. Holds 3 quarts of dry-ice slurry (dry-ice and alcohol). Holding time is approximately 20 hours depending on vacuum
throughput. The Polycarbonate “Bonnet” flange allows viewing of the trapped (frozen) gas on the cold bucket itself. Defrost and
clean-up is easily accomplished.
For durability and ease of cleaning, the outer body and cold well are electro-
polished ID/OD 304 stainless steel. Viewing ring and lid are clear acrylic plastic.
Part
No.
Ports
A
DIFT050
Part #DIFT050—Click for details
Current Price: $1361.00
Unit of Measure:
EA
Est. Ship Weight=16 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
1/2"
10 3/4"
DIFT075
Part #DIFT075—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=16 lbs
3/4"
10 3/4"
DIFT16
Part #DIFT16—Click for details
Current Price: $1132.50
Unit of Measure:
EA
Est. Ship Weight=16 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
NW 16 x 3/4"
11 1/16"
DIFT25
Part #DIFT25—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=15 lbs
NW 25 x 3/4"
11 1/16"
DIFT40
Part #DIFT40—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=15 lbs
NW 40 x 3/4"
11 1/16"
Viewing Ring
Features:
•
Electropolished 304 Stainless Steel Construction
•
Electropolished cold thimble and trap interior. Provides resistance to
corrosion and superior vacuum compatibility. Reduces the effect of
radiant heat on the cold surface.
•
Easily removable cold thimble
New
Larger
Sizes
See page F61 for Cryogen Controller. Also
see web for larger diameter LN2 Traps.
- Table of Contents
(Print Catalog)Table of Contents of the Scientific Instrument Services general catalog volume 36. - Print Catalog F. Vacuum System Supplies SIS Vol. 36 catalog Section F - Vacuum System Supplies.
- Molecular Sieve Foreline Traps
(Catalog F56) - Dry-Ice & LN2 Cooled Foreline Traps
(Catalog F57) - Gold Wire Ring Vacuum Gaskets
(Catalog F58)For ordering, see Gold Wire Ring Vacuum Gaskets.