GDSZ-100 Series High and Low Temperature Circulating Pump

GDSZ-100 Series High and Low Temperature Circulating Pump

  • BrandLanphan GDSZ-100
  • ColorCustomized
  • OriginZhengzhou, Henan, China
  • Voltage and Hertz380V±10% 50HZ
  • Heating power12000W
  • SensorPT100
GDSZ-100 series high and low temperature circulating pump can quickly shift function between heating and cooling, and using one same medium(conduction oil), it can match use with 80L-100L double-layer glass reactor.

Product Description

GDSZ-100 series high and low temperature circulating pump belongs to high and low temperature oil bath circulation device, it can match use with 80L-100L double-layer glass reactor. According to the specific test environment, GDSZ-100 series high and low temperature circulating pump is a new generation of products which is researched and developed on the basis of DLSB low temperature cooling liquid circulating pump and GY oil bath, with the function of one machine with multiple, and widely used in small space with a variety of specific environment. Through data programming for the equipment of intelligent temperature controller , by temperature sensing system feedback container temperature data, the controller control the compressor to make cooling, let the medium in the cold trough get low temperature; through the heater heat, so that the medium in the tough can obtain high temperature, by rapid thermal process, it can let medium temperature in the tough suiting for user needs, then through the absolutely leakage shielding circulating pump transfer the medium to an external device (such as a reactor). After the re-flux is switched, turn on the valve, the purpose of heat circulation can be achieved. When the corollary equipments(glass reactor, rotary evaporator, extraction equipment) of GDSZ-100 series high and low temperature circulating pump require rapidly warming or cooling, GDSZ pump would satisfy their requirements. It can quickly shift function between heating and cooling, and using one same medium(conduction oil), which thoroughly changed the disadvantage of conducting heating and warming in separate instruments in the past.

GDSZ-100 series high and low temperature circulating pump, its whole liquid circulation is closed, with expansion vessel, expansion tank and liquid circulation is adiabatic and does not participate in the liquid circulation, it is only the mechanical connection. No matter the liquid circulation temperature is high or low, the medium in the expansion container is lower than room temperature. The whole liquid circulation is a closed system, it can be done at low temperature without water vapor absorption, high temperature without oil mist generation.

GDSZ-100 series high and low temperature circulating pump use PID intelligent control, according to chemical process to automatic adjust power output, accuracy control the temperature of reaction process, and satisfying requirements for temperature changing.

For standard model, set max temperature difference between vessel body and clamp cover according to factory’s safety requirements, if outdoor temperature difference up to the limiting value, equipment would auto stop and give an alarm, to ensure no fracture.

For special custom-made model, we can offer max flow rate and generate min pressure and heat quantity, reach to max heat exchange rate, min systemic resistance, min pump system heat quantity and min system energy consumption.

Based on no-load lowest temperature, there are 5 models of GDSZ-100 series high and low temperature circulating pump: GDSZ-100/-20, GDSZ-100/-30, GDSZ-100/-40, GDSZ-100/-60, GDSZ-100/-80.

Product features of GDSZ-100 series high temperature circulating pump:

  1. Equip with castor, convenient to move.
  2. Light touch button is convenient to operate.
  3. Liquid discharge mouth is convenient for update medium.
  4. Inclined air inlet and outlet, round design of corner, to prevent accidental injury.
  5. Over-temperature protection and alarm system ensured safety.
  6. It can continuous cooling from 200℃ to -78℃, the cooling speed is as high as 5-10℃/m under high temperature.
  7. PID control method greatly improved the temperature control accuracy.
  8. Fully closed pipe system reduced conduction oil oxidation, and with unique oil mist cooling function. It not only lengthen oil using life but also reduce circulating pressure, increase flow rate.


Mode GDSZ-100/-20 GDSZ-100/-30 GDSZ-100/-40 GDSZ-100/-60 GDSZ-100/-80
Match double layer reactor 80-100L
Storage tank volume 30L
Heating volume 3L
Heating tank size(mm) ¢90×480
Fuel tank size 450*150*450mm
Temperature Range -20/+200℃ -30/+200℃ -40/+200℃ -60/+200℃ -80/+200℃
Best environment temperature ≤25℃
Around humidity ≤60℃
No-load minimum temperature -22℃ -32℃ -42℃ -62℃ -82℃
Voltage and Hertz 380V±10% 50HZ
Heating power 12000W
Cooling power 11240-2100 15700-3690 10280-2565 10280-1630 10570-3270
Meter temperature range -100℃-400℃
Temperature accuracy ±0.1℃
Sensor PT100
Medium viscosity 500C.S.T
Circulating pump power 280W
Pump head 10m
Flow (L/min) 35
Pressure 4Mpa
Cooling mechanism Closed compressor
Cold medium R22
specification Closed leak-free pumps
Inlet and outlet nozzle 6#(low inlet, high outlet)
temperature control method Microcomputer intelligent temperature control, liquid crystal display
Display temperature resolution In the range of temperature control, the minimum display value of 0.1
security protection delay, leakage, over current, over heat protection
Body material Power Anti-corrosive
Size(mm) 1070*800*1430
Weight(KG) 152 158 165 195 230
Accessories inlet or outlet connector 1 set
Instruction 1
Liquid inlet and outlet sealing gasket 1 set
Stainless steel flexible hose 2
Notes According to user requirements, it can be made explosion-proof type, and equipped with double inlet and outlet valve.

Corollary Equipment

GDSZ-100 series high and low temperature circulating device can be conveniently with double-layer glass reaction kettle, stainless steel reaction kettle, glass reactor, rotary evaporator, extraction equipment and other products, it realized the multi use of GDSZ series products.


Henan Lanphan GDSZ-100 series high and low temperature circulating pump is widely used in colleges and universities, environmental protection, biochemical, medical, chemical industry, scientific research, biological industries etc. It’s an ideal instrument for laboratory for its reasonable structure, easily operation and good stability performance.

Our Service

Pre-Sales Service

  1. Provide 24-hour technical consulting reply.
  2. Provide professional quoted price;
  3. Provide detailed product performance specification;
  4. According to product’s using condition, technicians will offer rationalization proposals to assist clients to select proper product types;
  5. Provide other corollary equipment according to client requirements.

In-Sales Service

  1. Begin to supervise from raw material, its qualified rate can reach to 100%;
  2. Whole manufacturing process are in strict accordance with promised procedure requirements, product qualified rate can reach to 100%;
  3. Provide product’s inspection record of key junctures to customers;
  4. Provide production schedule photos to customers at regular intervals;
  5. Package and transport products strictly accordance with export standard.
  6. Provide transportation schedule information to clients timely.

After-Sales Service

  1. Provide targeted installation video;
  2. Under the premise of correct installation, normal maintenance and using, we guarantee one-year warranty period;
  3. When warranty period has expired, our sold products enjoys lifetime guarantee repair, we only charge cost price for changing product’s standard component and sealing component;
  4. During installation and adjustment period, our after-sale service staff will communicate with customers frequently to know product’s running state in time. Assist customers to install and adjust products until customers are satisfied;
  5. If product has malfunction during operation period, we’ll offer you satisfied answer in time. We’ll reply you within 1 hour and provide solution or send staff to spot within 24 hours after receiving maintenance notification.
  6. Lifelong free technical support. Conduct satisfaction survey and inquiry equipment running condition to clients by telephone or e-mail semiannually from the first day of equipment running, put on records of acquired information.
  7. Provide assistant service if product is damaged during transportation.


  1. How many systems are there in the GDSZ-100 series high and low temperature circulating pump?
    Two systems: cooling system and heating system, they can be continuously used or separately used. Whole liquid circulating is fully closed, it is hard to volatilize and oxidize under high temperature, and hard to absorb moisture in the air under low temperature.
  2. What’s the temperature range of the device?
    The same machine, the same kind of heat conduction media can achieve -95 degree to 200 degree of temperature control. Adopting PID control mode, the temperature control precision of the whole machine is greatly improved.
  3. what are the optional devices?
    We can choose the second temperature sensor, program temperature control system and communication function.
  4. How about the quality of the device?
    Using imported compressor, with good quality and high efficiency.
  5. Is it safe to use?
    The machine’s over temperature protection and alarm system enhance the safety factor of the equipment, it can be assured.
  6. does it need to change oil when shifting function of cooling and heating?
    No, you don’t need to change the oil during whole process.


  1. Imported full sealed sealed compressor, quality is guaranteed.
  2. GDSZ-100 series high temperature circulating pump with high and low temperature resistance, the product has excellent performance.
  3. Microcomputer control, temperature digital display, improve the accuracy of the experiment.
  4. Control system with delay, overheating, over-voltage and other overload protection device.
  5. GDSZ-100 series high and low temperature circulation pump has the reasonable layout and compact structure.
  6. Refrigerating medium use high quality relay, protector, capacitor, reliable performance and long service life.
  7. Stainless steel container with pressure resistance of 40kg, with function of anti-corrosion, rust protection and anti liquid pollution.
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    Contact Us
    Contacts : Lanphan
    Phone : +86-371-67447999
    Email : [email protected]
    Wechat : +86-13783661974
    Address : Room801, Building B, CC Mall, Jianshe Road, Zhongyuan District, Zhengzhou, Henan, China
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