Cold traps, Woulff bottles

Stainless steel cold trap with Dewar flask for vacuum applications. Ideal for condensing out moisture or solvents. Dewar flask made of stainless steel with support ring into which the cold trap is hung.

• Cold trap connection: KF NW small vacuum flange
• Spring steel clamp to secure the connecting part (KF NW 50)

Stainless steel cold trap with Dewar flask for vacuum applications. Ideal for condensing out moisture or solvents. Dewar flask made of stainless steel with support ring into which the cold trap is hung.

• Cold trap connection: KF NW small vacuum flange
• Spring steel clamp to secure the connecting part (KF NW 50)
• CO₂ wire basket facilitates replacement of the cold trap

One-piece cold trap with matching Dewar flask made of borosilicate glass 3.3 for vacuum applications. Ideal for condensing out moisture or solvents. The Dewar flasks are vacuum-insulated, silver-plated and have a blue-coated metal protective jacket with a support ring into which the cold trap is hung.
Versions of the cold trap connections:

• S 29 = spherical ground joint S 29
• O 29 = spherical ground joint S 29 with O-ring seal
• GL 18 = glass thread GL 18 with PTFE olive Ø 10 mm

One-piece cold trap with matching Dewar flask made of borosilicate glass 3.3 for vacuum applications. Ideal for condensing out moisture or solvents. The Dewar flasks are vacuum-insulated, silver-plated and have a blue-coated metal protective jacket with a support ring into which the cold trap is hung.
The extended condensate area of the cold traps can hold a larger volume of condensate.

Versions of the cold trap connections:

• S 29 = spherical ground joint S 29
• O 29 = spherical ground joint S 29 with O-ring seal
• GL 18 = glass thread GL 18 with PTFE olive Ø 10 mm

One-piece cold trap with matching Dewar flask made of borosilicate glass 3.3 for vacuum applications. Ideal for condensing out moisture or solvents. The Dewar flasks are vacuum-insulated, silver-plated and have a blue-coated metal protective jacket with a support ring into which the cold trap is hung.
Cold traps have an additional glass thread GL 32 with screw cap as a spout.

Versions of the cold trap connections:

• S 29 = spherical ground joint S 29
• O 29 = spherical ground joint S 29 with O-ring seal
• GL 18 = glass thread GL 18 with PTFE olive Ø 10 mm

One-piece cold trap with matching Dewar flask made of borosilicate glass 3.3 for vacuum applications. Ideal for condensing out moisture or solvents. The Dewar flasks are vacuum-insulated, silver-plated and have a blue-coated metal protective jacket with a support ring into which the cold trap is hung.
-Extended condensate area of the cold traps can hold a larger volume of condensate

• Cold trap with glass thread GL 32 and screw cap as a spout

• S 29 = spherical ground joint S 29
• O 29 = spherical ground joint S 29 with O-ring seal
• GL 18 = glass thread GL 18 with PTFE olive Ø 10 mm

Borosilicate 3.3 glass, one-piece, with GL 45 neck and cap closure, GL 14 threaded side connections with caps and plastic tubing adapters.

Borosilicate 3.3 glass, comprising bottle with ground glass cone neck fitting a separate inlet / outlet head with choice of tubing or ground joint connections.

• Composition: water, carboxymethyl cellulose, acticides and blue dye
• Suitable for food contact (non-toxic coolant)
• Dishwasher safe

Two-piece cold trap made of stainless steel with KF NW small vacuum flange.

For cooling and storage of temperature-sensitive goods e.g. with dry ice (CO₂). Handles as indicated.

• Cylindrical
• Made of stainless steel

• With reinforced walls, for work under vacuum
• Plastic coating to act as a splinter and implosion protection
• A glass insert is fitted with removable PP tubing connections Ø 11 mm
• Vent valve head
• Analogue pressure gauge with 2 scale ranges (1000 to 0mbar, 760mm to 0mm Hg)

DIN 12480. With 3 NS standard ground joints. Without base tubulature. Vacuum resistant. Glass Type I / neutral glass as per USP, EP and JP. Autoclavable.

When using CO₂ as a coolant, the CO₂ wire basket facilitates the replacement of the cold trap.

One-piece cold trap with matching Dewar flask made of borosilicate glass 3.3 for vacuum applications. Ideal for condensing out moisture or solvents. The Dewar flasks are vacuum-insulated, silver-plated and have a blue-coated metal protective jacket with a support ring into which the cold trap is hung.
With the KF NW small vacuum flange made of glass, pumping units with small metal vacuum flanges (ISO 2861) can be connected to the cold traps.

Scope of supply: Cold trap, support ring, Dewar flask type 12 C

The standard assembly is designed for use with LN₂ as coolant. When using CO₂ and acetone please order CO₂ wire basket separately.

Cold trap for direct filling of cooling agents, low cooling agent consumption due to double-walled design, apparatus connection: socket NS 29/32, vacuum pump connection: cone NS 29/32, made of DURAN^® tubing.

Two-piece cold trap with matching Dewar flask made of borosilicate glass 3.3 for vacuum applications. The condensate area can be separated from the upper part of the cold trap. The Dewar flasks are vacuum-insulated, silver-plated and have a blue-coated metal protective jacket with a support ring into which the cold trap is hung. Including spring steel clamp to secure the connecting part (NS 45/40 conical ground joint).
The extended condensate area of the cold traps can hold a larger volume of condensate.

Versions of the cold trap connections:

• S 29 = spherical ground joint S 29
• GL 18 = glass thread GL 18 with PTFE olive Ø 10 mm

Two-piece cold trap with matching Dewar flask made of borosilicate glass 3.3 for vacuum applications. The condensate area can be separated from the upper part of the cold trap. The Dewar flasks are vacuum-insulated, silver-plated and have a blue-coated metal protective jacket with a support ring into which the cold trap is hung. Including spring steel clamp to secure the connecting part (NS 45/40 conical ground joint).
Versions of the cold trap connections:

• O 29 = spherical ground joint S 29 with O-ring seal
• GL 18 = glass thread GL 18 with PTFE olive Ø 10 mm

One-piece cold trap with matching Dewar flask made of borosilicate glass 3.3 for vacuum applications. Ideal for condensing out moisture or solvents. The Dewar flasks are vacuum-insulated, silver-plated and have a blue-coated metal protective jacket with a support ring into which the cold trap is hung.
-Extended condensate area of the cold traps can hold a larger volume of condensate

• KF NW small vacuum flange made of glass for connecting pumping units with small metal vacuum flanges (ISO 2861) to the cold traps

One-piece spare cold traps made of borosilicate glass 3.3.

Versions of the cold trap connections:

• S 29 = spherical ground joint S 29
• O 29 = spherical ground joint S 29 with O-ring seal
• GL 18 = glass thread GL 18 with PTFE olive Ø 10 mm
• KF NW 16 or 25 = small vacuum flange KF NW 16 or 25

Two-piece spare cold traps made of borosilicate glass 3.3.

Versions of the cold trap connections:

• S 29 = spherical ground joint S 29
• GL 18 = glass thread GL 18 with PTFE olive Ø 10 mm

Stainless steel cold trap with Dewar flask for vacuum applications. Ideal for condensing out moisture or solvents. Dewar flask made of borosilicate glass 3.3 is vacuum-insulated, silver-plated and have a blue-coated metal protective jacket with a support ring into which the cold trap is hung.

• Cold trap connection: KF NW small vacuum flange
• Spring steel clamp to secure the connecting part (KF NW 50)