KGW Cold trap KF
Illustration similar

Item number: KGW_18002

EAN: 4064343246200

Category: Cold traps

Manufacturer: KGW-Isotherm

starting from 488,82 €

Excluding 19% VAT. , plus shipping (Sperrgut)

(including 19% VAT. 581,70 €)
Type

There are variations of this item. Please select the variation you wish.

KGW Cold trap KF

Area of application
  • For condensing water, solvents or gases in connection with a vacuum pump
  • laboratory technology
  • medicinal technology
  • biotechnology
  • vacuum technology
Characteristics
  • reliable and easy handling
  • no stand material for holding the cold trap necessary
  • Dewar flasks according to DIN 12492
  • glass material according to ISO 3585 (DURAN)
  • protective casing of Dewar flask made of blue coated metal or aluminum
  • for liquid cooling agents, e.g. LN2 (-196°C)
  • for solid cooling agents CO2 (-77°C) with solvent (CO2-wire basket necessary)
  • pressure-free coolant sphere inside the Dewar flask
Description of complete cold trap with Dewar flask

Types and accessories
  • C = blue-coated protective casing out of metal
  • CAL = structured aluminium casing
  • plastic ring = polyethylene (PE), white, two-parted
  • connections for cold trap = flange KF NW , Gl18 / olive, spherical joint S29 with and without o ring seal
Temperature ranges for the Dewar flasks and the plastic ring
  • glass refill from - 196°C to + 150°C
  • plastic ring to + 100°C

Pressure range in the cold trap
  • up to 1 bar excess pressure
  • vacuum up to 5x10-5 mbar
Description of the glass for the cold trap and the Dewar flask

Material
  • borosilicate glass 3.3 ISO 3585
Chemical characteristics
  • hydrolytic resistance: according to ISO 719 (98°C)
  • hydrolytic resistance: according to ISO 720 (121°C)
  • acid resistance: according to ISO 1776
  • alkaline resistance: according to ISO 695-A2

Physical characteristics
  • linear expansion coef ficient: 3,3 x 10-6 1/K (in between 20-300°C)
  • density: 2,23 g/cm3
  • specific thermal capacity: 910 J/kg K
  • transformation temperature: 525°C

Vacuum connections for the cold trap
  • glass threads with screw-on cap and PTFE-olive, e.g. GL18
  • vacuum glass flanges, e.g. KF NW 16
  • plane flanges, e.g. DN 25
  • conical ground joints NS 29/32
  • spherical ground joints S 29
  • spherical ground joints Rotulex S 29 with O-ring seal

Safety advises and regulations
  • always wear protective glasses and protective gloves
  • national regulations for laboratories
  • company-internal regulations
  • safety regulations for handling with liquid gases
  • Pressure calculation according to "AD Merkblätter"
Shipping weight: 10,00 Kg
Product weight: 4,00 Kg
cooling trap completely
Type		 condensate
theoretical volume		 coolant
theoretical volume		 Dewar
Type		 cold traps
connections		 Replacement cooling trap
KF 29-K 150 ml 1000 ml 12 C S 29 cold finger S 29
KF 29-OK 150 ml 1000 ml 12 C O 29 cold finger S 29 O
KF 29-GL 150 ml 1000 ml 12 C GL 18 cold finger S 29 GL
KFL 29-K 250 ml 2000 ml 18 C S 29 cold finger SL 29
KFL 29-OK 250 ml 2000 ml 18 C O 29 cold finger SL 29 O
KFL 29-GL 250 ml 2000 ml 18 C GL 18 cold finger SL 29 GL
KF 29-K-A 150 ml 1000 ml 12 C S 29 cold finger S 29-A
KF 29-OK-A 150 ml 1000 ml 12 C O 29 cold finger S 29 O-A
KF 29-GL-A 150 ml 1000 ml 12 C GL 18 cold finger S 29 GL-A
KFL 29-K-A 250 ml 2000 ml 18 C S 29 cold finger SL 29-A
KFL 29-OK-A 250 ml 2000 ml 18 C O 29 cold finger SL 29 O-A
KFL 29-GL-A 250 ml 2000 ml 18 C GL 18 cold finger SL 29 GL-A

Accessories

KGW Cold finger S 29 Details
KGW Cold finger S 29
starting from 230,48 € *