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2019 Latest Low Temperature Cooling Liquid Circulating Pump-buying guide

DLSB series low temperature Cooling Liquid Circulating Pump, adding circulating water pump on the basis of refrigeration. The new design is beautiful and the circulation system is made of stainless steel, with anti-corrosion, anti-rust, anti-cold liquid pollution and other functions.

Note for using glass reactor:

1. All operators should read this specification before proceeding;

2. If it is not specified as “explosion-proof” type, this equipment is not suitable in flammable and explosive workplaces.

3. This equipment is not used in places where the environment is rotted seriously;

4. Strong magnetic fields may affect the normal operation of the machine, so the device is not suitable for environments with strong magnetic fields;

5.This equipment allows the working environment temperature range of 5 ° C ~ 30 ° C, humidity ≤ 85%, beyond this range will affect the safety and usage performance of the equipment.

Next, I will introduce the latest Low Temperature Cooling Liquid Circulating Pump:

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product name

Product Parameter

DLSB-5/10低温冷却液循环泵
1.Output refrigerating capacity:280-620W
2.Total power:420W
3.Total current:2.1A
DLSB-20/30低温冷却液循环泵
1.Output refrigerating capacity:246-1845W
2.Total power:1350W
3.Total current:7.2A
DLSB-50/30低温冷却液循环泵
1.Output refrigerating capacity:559-4190W
2.Total power:2930W
3.Total current:13.8A
DLSB-100/80低温冷却液循环泵
1.vacuum degree:0.098Mpa
2.Stirring power:120W1/3
3.heating power:8KW
Note:If the explosion-proof Low Temperature Cooling Liquid Circulating Pump is needed, the price of the non-explosion-proof Low Temperature Cooling Liquid Circulating Pump shall be increased by 1000$.

DLSB-5/10Low Temperature Cooling Liquid Circulating Pump Introduction

1.DLSB-5/10Low Temperature Cooling Liquid Circulating Pump

DLSB-5 series low-temperature cooling liquid circulating pump, also known as low temperature pump, low temperature circulating pump, low temperature cooling water circulating pump, water tank volume is 5L, min no-load temperature is between -15℃~-123℃, best environment temperature is 5℃~25℃.

DLSB低温冷却液循环泵
DLSB Low Temperature Cooling Liquid Circulating Pump

Product Advantage:

1.The circulation system is made of stainless steel and has anti-corrosion and anti-rust functions.

2. Imported air-cooled fully enclosed compressor unit with advanced performance and reliable quality.

3. Digital display constant temperature display, microcomputer temperature control, simple operation.

DLSB-20/30Low Temperature Cooling Liquid Circulating Pump Introduction

2.DLSB-20/30Low Temperature Cooling Liquid Circulating Pump

DLSB-20 series low-temperature cooling liquid circulating pump, also known as low temperature pump, low temperature circulating pump, low temperature cooling water circulating pump, water tank volume is 10L, min no-load temperature is between -15℃~-122℃, best working environment is 5℃~25℃. DLSB-20 series of low-temperature cooling liquid circulating pump is a low temperature liquid refrigerant equipment which takes mechanical forms to refrigerate. It has the function of providing a cryogenic liquid, low temperature water bath. It can be combined with the rotary evaporator, glass reactor, vacuum freezing drying oven, circulating water vacuum pump, magnetic stirrer and other instruments to proceed multi-functional chemical reaction or store drugs under low temperature condition.

20L-30冷水机组
20L-30 chiller

Product Advantage:

1.The circulation system is made of stainless steel and has anti-corrosion and anti-rust functions.

2. Imported air-cooled fully enclosed compressor unit with advanced performance and reliable quality.

3. Digital display constant temperature display, microcomputer temperature control, simple operation.

DLSB-50/30Low Temperature Cooling Liquid Circulating Pump Introduction

3.DLSB-50/30Low Temperature Cooling Liquid Circulating Pump

DLSB-50 series low-temperature cooling liquid circulating pump, also known as low temperature pump, low temperature circulating pump, low temperature cooling water circulating pump, water tank volume is 50L, min no-load temperature is between -23℃~-120℃, best working environment is -10℃~-120℃. The circulating water pump is added on the basis of refrigeration, which enables the cooled liquid to go through the pipeline for external and internal circulation. It can provide cryogenic liquid for external equipment such as double-layer glass reactor, organic synthesis device and rotary evaporator.It can be combined with the rotary evaporator, glass reactor, vacuum freezing drying oven, circulating water vacuum pump, magnetic stirrer and other instruments to proceed multi-functional chemical reaction or store drugs under low temperature condition.

20L-30冷水机组

Product Advantage:

1.The circulation system is made of stainless steel and has anti-corrosion and anti-rust functions.

2. Imported air-cooled fully enclosed compressor unit with advanced performance and reliable quality

3. Digital display constant temperature display, microcomputer temperature control, simple operation

Laboratory Low temperature cooling liquid water circulating pump DLSB 5L/-10℃ test machine:

Matching product

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Product name

product description

RE-5003 rotary evaporator
  Rotary evaporator is mainly used for continuous distillation of a large number of volatile solvents under negative pressure conditions.In particular, the concentration of the extract and the distillation of the receiving liquid in the chromatographic separation can separate and purify the reaction product.
S212-2L Glass reactor
Glass reactor plays the role of reaction material in laboratory instruments and is often used in modern fine chemical industry, biopharmaceutical industry, scientific research experiment and other industries.
SD-5L short-path distillalion

  The device has simple structure, small floor space, high evaporation and recycling efficiency.

Mainly used in fractionation process.


Trouble shooting:

1The whole machine has no electricityNo power supplyCheck the power supply
circuit breaker protectionReset circuit breaker
Fuse burnReplace fuse
power line offTighten the power line
Wrong phase sequence of power supplyAdjust the position of two fire wires at will
2No temperature displayNo temperature displayTurn on the power switch
Display board line offPlug in the sensor socket
Water splashed on the circuit boardDry or sun dry before starting
3Display on the  □□□□or EOSensor breakPlug in the sensor socket
Sensor short circuitReplace the sensor
4Display on the  □□□□or EOSensor short circuitReplace the sensor
5Display does not match the actualSensor offReinstall and tighten
6Temperature control disordervoltage instabilityStabilize the voltage before starting up
The temperature control circuit is brokenReplace the temperature control circuit
7No cooling or slow coolingSystem leakagePlease have it repaired by a professional
8The machine stops when the temperature does not reach the set valueThe temperature control circuit is brokenReplace the temperature control circuit
Compressor overheating protectionImprove ventilation and start after cooling
9No exhaust airFan power cord is not in good contactConnect the power wire
Fan stuckAdjust fan position
The wind leaf deformationReplace the new fan
Fan burn outReplace the new fan
10The compressor is not working but there is a clickStarting capacitor breakdownReplace capacitors of the same type
Compressor is badReplace compressor of the same type
11No external looppower line offTighten the power line
The water inlet is blockedRemove the blockage
Adjustment valve is not openopen the adjustment valve
There is ice blocking in the circulating pumpShut down and thaw
12Fuse burnStart capacitor burnoutReplace capacitors of the same type
There is a short circuitCheck each line

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