Project Description

Circulating Water Vacuum Pump

It can provide negative pressure condition for the processes of evaporation, distillation, crystallization, drying, sublimation, pressure-reducing filtration and so on, particularly be suitable for labs

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Laboratory Water Circulating Vacuum Pump is made on the basis of circulating water multi purpose vacuum pump, and in view of the small space of the lab, and with reference to the Japan -made bench-type pump, made with reduced size and improvement, and adopting one-shot forming, it has the feature of small size, light weight and beautiful appearance and so on, it has double-size-double- tap air extracting, 4-size-4-tap , identical dual size multi purpose vacuum pump. While the teacher is demonstrating, students can also turning on or off the machine on any size of it.

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Features of vacuum pump for rotary evaporator

Water Circulating Vacuum Pump takes circulating water as working fluid to create negative pressure by fluid jet.

It can provide negative pressure condition for the processes of evaporation, distillation, crystallization, drying, sublimation, pressure-reducing filtration and so on, particularly be suitable for labs and small scale test of industries such as universities and colleges, scientific research institutes, chemical industry, pharmacy, biochemistry, foodstuff,  pesticide, agricultural engineering, biological engineering.

Advantages of Water Circulating Vacuum Pump

1. Save water resources.

2. Save more than 35% of electricity than other types of vacuum pump.

3. Specialized fluid muffler can make the vacuum degree higher by reducing the gas in water and make it quieter by reducing the friction between gas and fluid.

4. Equipped with double-tap and double-gauge, it can be used alone or in parallel.

5. Resistant to acid, alkali and solvents.

6. High quality motor with fluorine rubber sealing which can avoid the invasion of corrosive gas.

7. Replace water regularly to keep water clean to ensure perfect vacuum condition.

8. Shorten the water replacing period when it is used to pump corrosive gas.

9. SHB-III: Shell, water tank, ejector, tee junction, check valve and suction nozzle are made of PP material. Pump body and impeller ( six flowing passages, dual sealing ) are made of SUS304.

10.SHB-IIIA: Ejector and suction nozzle are made of SUS304. Other components are the same as that of SHB-III.

11.SHB-IIIS: Pump body is made of PP material which is more suitable for acid gas. Other components are the same as that of SHB-III.

Specific Parameters

Power (W)180
Power Supply110v (1 Phase, 60Hz) or 220-240V (1 phase, 50/60Hz)
Flow Rate (L/min)80
Lift (m)10
Ultimate Vacuum (MPa)-0.098 (2KPa)
Single Tap Air Suction Amount10
Tap Number2
SafetyCheck Valve
Water Tank Capacity (L)15
Water Tank MaterialPP
Dimensions (mm)385W*280D*420H
Weight (kg)11

Main Parts Comparison

Water TankPPPPPP
Tee JunctionPPPPPP
Check ValvePP+CopperPP+CopperPP+Copper
Suction NozzlePPSUS304PP
Pump BodySUS304SUS304PP
Connecting PipeNRNRNR


Circulating water vacuum pumps to circulate the water as the working fluid, using fluid jets to produce negative pressure injection pump. Evaporation, distillation, crystallization, drying, sublimation, vacuum filtration, vacuum degassing process provides, is particularly suitable for universities, research institutes, chemical, pharmaceutical, biochemical, food, pesticides, agricultural engineering and biological engineering laboratory and small scale industry.

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Our Service

Pre-sale 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-sale 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-sale 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.

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