Frysefælder, Woulff-flasker

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

• 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)

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, 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