Zhengzhou Greatwall 2019 New Designed -40 Degree Cold Trap CT-40 with 3 Traps

Cold trap is used to capture water vapor and harmful gases emission from vacuum drying oven and pressure reduced concentration device, improving efficiency of vacuum system, extending life-span of vacuum pump.

The newly re-designed Zhengzhou Greatwall -40℃ Cold Trap CT-40 has a much smaller footprint, but at the same time, offering you the same cooling power, 1.5X reservoir and 1.6X trap capacity. New upward hose barb ports provide you safer and easier vacuum tubing connection and removal.

Specifications of Zhengzhou Greatwall 2019 New Designed -40℃ Cold Trap CT-40

Model	CT-40
Power Supply	Single phase 110V/60Hz, 220V-240V/50Hz, 220V/60Hz
Compressor	Brand: Embraco Refrigerant: R404A Cooling capacity: 300W@-10℃, 250W@@-20℃, 150W@-30℃, 50W@@-40℃
Bath Fluid Tank	Volume: 5 Liters Diameter: 15.8cm Depth: 24.1cm
Temperature	-40℃ Display: digital Sensor: PT100
Finish material	Exterior: powder coated steel Interior: polished type 304 stainless steel
Trap	Material: high borosilicate glass 3.3 Volume: 500ml Diameter: 5cm Depth: 29.2cm Quantiry: three
Vacuum connection	3/8'' hose barb
Recommended coolant	50% Ethylene glycol + 50% purified water
Unit weight	45KG
Unit dimensions	33*47*80cm(W*D*H)

In vacuum applications, a cold trap is a device that condenses all vapors except the permanent gases into a liquid or solid. The most common objective is to prevent vapors being evacuated from an experiment from entering a vacuum pump where they would condense and contaminate it. Particularly large cold traps are necessary when removing large amounts of liquid as in freeze drying.

Pumps that use oil either as their working fluid (diffusion pumps), or as their lubricant (mechanical rotary pumps), are often the sources of contamination in vacuum systems. Placing a cold trap at the mouth of such a pump greatly lowers the risk that oil vapors will back stream into the cavity.

Care should be taken when using a cold trap not to condense liquid oxygen (a light blue liquid) into the cold trap. Liquid oxygen is potentially explosive, and this is especially true if the trap has been used to trap solvent. Liquid oxygen can be condensed into a cold trap if a pump has sucked air through the trap when the trap is very cold.

Features of Zhengzhou Greatwall 2019 New Designed -40℃ Cold Trap CT-40:

1. 1.5X more reservoir and 1.6X more trap capacity compare to its predecessor.
2. No dry ice or liquid nitrogen needed.
3. All steel housing for durability.
4. Small footprint, built-in swivel casters for mobility.
5. Plug and play, no assembly required.

6. It can be used in drying system for capacitor, battery pole and battery cell.
7. It also can be used as pre-freezing bath and low temperature bath.
8. Digital display for batter control of the bath temperature, which makes it easier to start the vacuum pump at right time.

9. Stainless steel 304 liquid bath can be used to do water or ethanol cooling experiments. If equipped with glass condenser, it also can be used to deal with acid or organic solvents.
10. Designed with drain valve for easy discharge of collected liquid.

Company Profile

Founded in 1988, Zhengzhou Greatwall Scientific Industrial and Trade Co., Ltd. has grown to be a technological innovative enterprise integrated with researching, developing, manufacturing and modern management.

Three main series of products: temperature control system, vacuum system, distillation and reaction system, including Rotary Evaporator, Glass Reactor, Water Circulating Vacuum Pump, Diaphragm Vacuum Pump, Dynamic Temperature System, Recirculating Chiller, Stirring Reaction Bath, High Temperature Circulator, Thermostatic Magnetic Stirring Bath, etc.

Manufacturer of glass reactor, rotary evaporator, heating/cooling circulator, vacuum pump and magnetic stirrer in China for 33 years(founded in 1988). We have ISO 9001 14001 and 45001 certificates.