China supplier CZPT Manufacture Circulating Water Vacuum Pump For Lab vacuum pump electric

Product Description

Product Description

Short Description:

Vacuum pump does not have the function of adjusting vacuum degree, if you need this function you should be match the vacuum control instrument.


1.Original whole sealing compressor, advanced performance and reliable quality.
2.Refrigerating unit of relay, protector and capacitance are all imported original high-quality equipment, that ensure reliability and using life.
3.Digital temperature control, simple and marked operation.
4.Low-temperature cooling liquid circulating pump has multiple functions of providing low-temperature high-quality refrigerating water, low-temperature non-freezing liquid and small low-temperature water bath. Combined with rotary evaporator, vacuum freezing drying oven, circulating water multi-purpose vacuum pump, magnetic stirrer and other instruments, it can proceed chemical reactions and medicine storage under the conditions of multiple-function and low-temperature. In addition, it can be assembled with kinds of large precise equipment to overcome these problems that instrument can’t be used due to low-quality refrigerating water, over temperature and unstable water pressure.
5.Its professional design is accorded with Chinese situation 220V, 50Hz, avoiding faults and using difficulties caused by the design 110V, 60Hz.
6.Circulating system adopts stainless steel materials, with functions of anti-corrosion, rustproof and anti-pollution from low-temperature liquid.
7.As for these large expensive lab instruments of high pure metal, purification of raw materials, environmental labs and magnetic control test shot, and vacuum coating equipment, Low-temperature cooling liquid circulating pump can provide refrigerating water that meets demands of temperature and quality, has characteristics of energy and water conservation, anti-pollution and anti-scaling, which can protect large precise instrument and equipment efficiently.
8.It collected functions of circulating cooling water, small volume and reasonable power, which fully shows the characteristics of saving space.
9.Low-temperature cooling liquid circulating pump meets all kinds of using condition.

Product Parameters

Model SHZ-DIII Double gauge double pumping SHZ-DIII Four gauge 4 pumping
Consumption 180W 370W
Power Supply 220V 220V
Circulating Pump Flow 20L/MIN 40L/MIN
PumpLift 8M 12M
Material Anti-corrosion Anti-corrosion
Pump Head 2 4
Speed of Evacuation 10L/MIN 10L/MIN
Vacuum 0.098MPA 0.098MPA
Capacity 15L 15L
Size 400*280*420 400*280*420
Weight 15KG 17KG

Core Products


Company Profile




Packaging & Shipping



Q: Are you trading company or manufacturer? 
A: We are professional manufacture of lab equipment and we have our own factory. We commit to be your professional. We commit to be your professional, efficient and reliable partner. 

Q: How long is your delivery time? 
A: Generally it is within 7 working days after receiving 100% payment if the goods are in stock. Or it is 15 working days if the goods are not in stock, depending on order quantity. 

Q: Do you provide samples? Is it free? 
A: Yes, we could offer the sample. Considering the high value of our products, the sample is not free, but we will give you our best price including shipping cost.
Q:How about CZPT payment term?
A:T/T & L/C 

Q:How about CZPT validity of quotation ? 
A:Usually 15 days as the shipping freight and exchange rate can be fluctuant.

Q:How about the package?
A:Bubble film + Cotton +Standard export wooden case.

Q:How to inspect the goods?
A:Products will be checked by our QC staff frist, then our proejct manager. Client can come and check bythemselves or
third party check is available.

After-sales Service: on online technical support
Warranty: 1 year
Oil or Not: Oil Free
Structure: Circulating Water
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: Vacuum


Vacuum Pump

How to check the vacuum pump

A vacuum pump is a machine that draws gas molecules from a volume and maintains a partial vacuum. Its main job is to create a relative vacuum within the stated capabilities. If your vacuum pump isn’t working properly, it may need service. Read on to learn more about the types of vacuum pumps and how to check them.

Principle of industrial vacuum pump

Industrial vacuum pumps are used in industrial processes that require vacuum. These pumps are designed to generate, improve and maintain vacuum. Learn about the different types of industrial vacuum technology. You can start by reading about the most common types of industrial vacuum pumps. These pumps can be used in a variety of industrial processes from cleaning to manufacturing.
Regardless of the technology used to manufacture these pumps, the basic principles behind their operation are the same. The speed and mass flow of the pump will determine its capacity and suitability. A faster flow rate will minimize the time it takes for the machine to empty. Another important factor to consider is the type of vacuum you need.
A liquid ring vacuum pump is an industrial pump that uses a ring of liquid to form a seal. This type of pump is best suited for applications with high vapor loads and high liquid carry-over. Liquid ring vacuum pumps can be divided into two categories: liquid ring vacuum pumps and scroll vacuum pumps.
Industrial vacuum pumps work by removing gas molecules from a chamber. The partial vacuum created allows material to flow through the void. As more molecules are removed, the pressure in the chamber decreases, releasing energy that can be used for a variety of different purposes.
The most common use of industrial vacuum pumps is for electric lights. In these lamps, a vacuum pump removes the gas, causing the bulb to light up. Energy from the vacuum is also used in aircraft to power instruments. In addition to powering industrial vacuum cleaners, they are used in a variety of other environments.
High-performance industrial vacuum systems require specific materials that can withstand extreme pressure. This means that the materials used in these systems need to be properly checked. They must also be free of organic debris and other contaminants before they can be safely placed in the chamber.

Types of vacuum pumps

There are various types of vacuum pumps. Which one to choose should depend on the purpose of the pump and the degree of vacuum that must be achieved. It is mainly divided into three categories: rough vacuum or low vacuum, high vacuum and ultra-high vacuum. They all have varying degrees of scarcity. The higher the pressure, the fewer molecules per cubic centimeter. This in turn improves vacuum quality.
The vacuum pump is critical to the operation of the vacuum system. These devices are divided into three main categories according to their working pressure range. These pumps have different characteristics and technologies that make them ideal for specific applications. The choice of vacuum pump required for a particular application depends on how much vacuum you need, and how much power you are willing to spend.
Vacuum pumps are used in a variety of industrial and scientific processes. Their main function is to remove gas molecules from the sealed volume, leaving a partial vacuum. There are many different types of vacuum pumps, including rotary piston, liquid ring and scroll vacuum pumps. In addition, turbomolecular pumps are used.
Dry vacuum pumps are more expensive than wet vacuum pumps. Wet vacuum pumps use oil as their lubricating fluid. Different types of oils are used depending on the application. Some wet pumps have additional features, including contaminant filtration. However, wet systems have one major disadvantage: the contact between oil and fluid. To avoid this, oil separators are usually used.
There are several different types of vacuum pumps. The basic type is the positive displacement pump. It operates by expanding the chamber and removing gas molecules. The intake valve draws fluid into the chamber, while the exhaust valve opens when the chamber is at maximum expansion. This cycle repeats several times per second. Positive displacement pumps are often used in multistage vacuum systems.
Vacuum Pump

Maintenance of vacuum pump

Regular maintenance is very important to ensure the long-term effective use of the vacuum pump. One way to ensure proper pump performance is to change the oil regularly. Pump oil may be contaminated by vapor condensation. To avoid this problem, close the inlet valve for 20 to 30 minutes before applying vacuum. It is also important to install an inlet cold trap to protect the pump from corrosive vapors.
Another way to prolong the life of your vacuum pump is to periodically remove any solvent in it. This step reduces internal corrosion and prevents premature pump failure. During maintenance, be sure to disconnect the power supply to the vacuum pump. After cleaning, store it in a dry and safe place. The pump should also be disposed of in accordance with local regulations.
Vacuum pumps may require frequent oil changes, especially when used in wet chemistry. The standard rule is to change the oil after 3,000 hours of use, but some pumps require more frequent oil changes. It is also important to clean the oil regularly, as dirty or discolored oil can affect the performance of the pump.
Vacuum pumps are often equipped with on-site glass to allow the user to visually check the oil level. Clean oil will appear transparent, while dirty oil will appear darker. Frequent oil changes are essential, as oil changes can help spot various potential problems. Changes in vacuum pump performance or strange noises are also good indicators of a problem.
After an oil change, the vacuum pump should be cleaned thoroughly with a soft cloth and mild degreaser. Oil changes should take less than ten minutes, and they will extend the life of your equipment. Additionally, the outside of the pump should be wiped with a cloth or rag.
The pump must be properly vented to avoid internal corrosion. If possible, place the pump away from hot equipment or rooms. Overheating can reduce the viscosity of the oil and cause premature pump failure. In addition, it can lead to overwork of other expensive scientific equipment. Heat can also cause cracked rubber parts and oil leaks.
Vacuum Pump

Signs of damage to the vacuum pump

A bad vacuum pump can cause a variety of automotive problems, including poor fuel economy, difficult braking, undercarriage oil leaks, and faulty air conditioning. If any of these problems occur, call a mechanic to check your vehicle’s vacuum pump. You can also check the air conditioner and brake pedal to see if they are working properly.
A loud noise from the pump can also be a symptom of a malfunction. These noises are often caused by the aging and accumulated wear of specific components. If this is the case, the diaphragm, valve plate or seals may need to be replaced. However, if the noise is coming from bearings or other areas, more extensive repairs may be required. Additionally, dust and other contaminants can enter the pump chamber, which can degrade pump performance.
If the vacuum pump won’t start, it could be a blown fuse or a power or voltage problem. Other common causes are flow restrictions or improper installation at the entrance. Also, the vacuum pump may be damaged or the capacitors may be of poor quality. It’s not always easy to tell if a vacuum pump is leaking oil, but a greasy transmission can indicate a vacuum pump failure.
A leaking vacuum pump can also hiss when the car’s engine is running. If you hear it, check the hoses and connections to make sure there are no leaks. A vacuum leak may indicate a faulty vacuum pump, so you need to replace it as soon as possible.
Checking end pressure is easy, but a pressure gauge can also serve as a sign. You can also check for pump vibration by running a short procedure. Excessive vibration can be subtle, but it can greatly affect your process. If you notice excessive pump vibration, you should contact a professional immediately.
Poor pump performance can cause many problems for your company. A bad vacuum pump not only wastes material, it also damages your tools and reputation.

China supplier CZPT Manufacture Circulating Water Vacuum Pump For Lab   vacuum pump electricChina supplier CZPT Manufacture Circulating Water Vacuum Pump For Lab   vacuum pump electric
editor by CX 2023-05-19