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China wholesaler China Factory Best Price Dual Stage Vacuum Pump with high quality

Descrição do produto

Descrição do produto

Main Features:

1. Designed specially for HVAC/R service

2. Ultimate deep vacuum: CHINAMFG is 5PA, while dual voltage is 0.3 Pa

3. Compact design with aluminum hosing and easy to carry.

4. Thermal protector in the motor to guarantee the pump to run steadily.

5. Both 1/4′ and 3/8′ SAE flare inlet connections allow for flexibility of connections.

6. Vacuum pump oil included.

7. Suitable for all the main voltage design in the market.

8. Individual design for special customers.

Detailed Photos

Product Parameters

Single stage
 

Modelo VP115 VP125 VP135 VP145 VP160 VP180 VP1100
Flow Rate 50HZ 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42L/min 70L/min 100L/min 128L/min 170L/min 226L/min 283L/min
60HZ 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
60L/min 84L/min 114L/min 142L/min 198L/min 254L/min 340L/min
Ultime Vacuum 5Pa 5Pa 5Pa 5Pa 5Pa 5Pa 5Pa
150microna 150microna 150microna 150microna 150microna 150microna 150microna
Power 1/4HP 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP
Inlet port 1/4″ Flare 1/4″ Flare 1/4″ Flare 1/4″ Flare 1/4″ Flare 1/4″ & 1/8″Flare 1/4″ & 1/8″Flare
Oil Capacity 280ml 260ml 330ml 310ml 450ml 650ml 800ml
Dimensions(mm) 270*119*216 270*119*216 278*119*216 278*119*216 320*134*232 370*140*250 390*140*250
Weight (kg) 4.6 5 5.6 6 7.8 12.3 12.8

Company Profile

ZheJiang SHING CHEMICAL CO. LTD. is a professional company engaged in refrigerant gas and refrigeration spare parts and tools. 
Most of our products have international approvals, such as CE, KGS and DOT. Our good quality and perfect services help us earn a high reputation from clients from Europe, South America, the Middle East, Southeast Asia and Africa.
We are sincerely looking CHINAMFG to cooperating with you to supply the best products to people around the world! We welcome your contact and visit!
We are the leading exporter of the refrigerant gas,and we could serve you all kinds of refrigerant at a reasonable price.
We also have Certifications of CCC//ROHS//ISO9001. This ensure the high quality of the goods.

PERGUNTAS FREQUENTES

1.How about the delivery time?

Within 25 ~ 30 days after we receive the order.

2.What kind of payments do you support?

30% T/T in advance ,70 % against the copy of B/L . 100% T/T for samples . Other kinds please contact with us.

3.What’s the MOQ?

Generally speaking ,the MOQ of this backward centrifugal fan is 500 pieces .Different products have different MOQ,

Please contact with us.

4.Can you produce according to customer’s design?

Sure ,we are professional manufacturer ,OEM are also welcome.

5.Can you tell me your main customers?

We have business relationshi with Gree , Media ,LG ,ebmpapst , American Carrier ,etc

Our Team

 

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Serviço pós-venda: Disponível
Garantia: 1 Year for Motor
Óleo ou não: Óleo
Estrutura: Bomba de vácuo rotativa
Método do exaustor: Positive Displacement Pump
Grau de vácuo: Alto vácuo
Samples:
US$ 90/Piece
1 Piece(Min.Order)

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Personalização:
Disponível

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bomba de vácuo

Qual é o impacto da altitude no desempenho da bomba de vácuo?

O desempenho das bombas de vácuo pode ser influenciado pela altitude em que elas são operadas. Aqui está uma explicação detalhada:

Altitude refere-se à elevação ou altura acima do nível do mar. À medida que a altitude aumenta, a pressão atmosférica diminui. Essa diminuição da pressão atmosférica pode ter vários efeitos sobre o desempenho das bombas de vácuo:

1. Redução da capacidade de sucção: As bombas de vácuo dependem do diferencial de pressão entre o lado da sucção e o lado da descarga para criar um vácuo. Em altitudes mais elevadas, onde a pressão atmosférica é menor, o diferencial de pressão disponível para a bomba trabalhar é reduzido. Isso pode resultar em uma diminuição da capacidade de sucção da bomba de vácuo, o que significa que ela pode não ser capaz de atingir o mesmo nível de vácuo que atingiria em altitudes mais baixas.

2. Nível de vácuo final mais baixo: O nível de vácuo máximo, que representa a pressão mais baixa que uma bomba de vácuo pode atingir, também é afetado pela altitude. Como a pressão atmosférica diminui com o aumento da altitude, o nível de vácuo máximo que pode ser atingido por uma bomba de vácuo é limitado. A bomba pode ter dificuldade para atingir o mesmo nível de vácuo que atingiria no nível do mar ou em altitudes mais baixas.

3. Velocidade de bombeamento: A velocidade de bombeamento é uma medida da rapidez com que uma bomba de vácuo pode remover gases de um sistema. Em altitudes mais elevadas, a pressão atmosférica reduzida pode levar a uma diminuição na velocidade de bombeamento. Isso significa que a bomba de vácuo pode levar mais tempo para evacuar uma câmara ou sistema até o nível de vácuo desejado.

4. Aumento do consumo de energia: Para compensar a diminuição do diferencial de pressão e atingir o nível de vácuo desejado, uma bomba de vácuo operando em altitudes mais elevadas pode exigir maior consumo de energia. A bomba precisa trabalhar mais para superar a pressão atmosférica mais baixa e manter a capacidade de sucção necessária. Esse aumento no consumo de energia pode afetar a eficiência energética e os custos operacionais.

5. Variações de eficiência e desempenho: Diferentes tipos de bombas de vácuo podem apresentar diferentes graus de sensibilidade à altitude. As bombas de palhetas rotativas vedadas a óleo, por exemplo, podem apresentar variações de desempenho mais significativas em comparação com as bombas secas ou outras tecnologias de bombas. O projeto e os princípios operacionais da bomba de vácuo podem influenciar sua capacidade de manter o desempenho em altitudes mais elevadas.

É importante observar que os fabricantes de bombas de vácuo normalmente fornecem especificações e curvas de desempenho para suas bombas com base em condições padronizadas, geralmente no nível do mar ou próximo a ele. Ao operar uma bomba de vácuo em altitudes mais elevadas, é aconselhável consultar as diretrizes do fabricante e considerar quaisquer limitações ou ajustes relacionados à altitude que possam ser necessários.

Em resumo, a altitude em que uma bomba de vácuo opera pode ter um impacto em seu desempenho. A pressão atmosférica reduzida em altitudes mais elevadas pode resultar na diminuição da capacidade de sucção, em níveis mais baixos de vácuo final, na redução da velocidade de bombeamento e no possível aumento do consumo de energia. Compreender esses efeitos é fundamental para selecionar e operar bombas de vácuo de forma eficaz em diferentes ambientes de altitude.

bomba de vácuo

How Do Vacuum Pumps Assist in Freeze-Drying Processes?

Freeze-drying, also known as lyophilization, is a dehydration technique used in various industries, including pharmaceutical manufacturing. Vacuum pumps play a crucial role in facilitating freeze-drying processes. Here’s a detailed explanation:

During freeze-drying, vacuum pumps assist in the removal of water or solvents from pharmaceutical products while preserving their structure and integrity. The freeze-drying process involves three main stages: freezing, primary drying (sublimation), and secondary drying (desorption).

1. Freezing: In the first stage, the pharmaceutical product is frozen to a solid state. Freezing is typically achieved by lowering the temperature of the product below its freezing point. The frozen product is then placed in a vacuum chamber.

2. Primary Drying (Sublimation): Once the product is frozen, the vacuum pump creates a low-pressure environment within the chamber. By reducing the pressure, the boiling point of water or solvents present in the frozen product is lowered, allowing them to transition directly from the solid phase to the vapor phase through a process called sublimation. Sublimation bypasses the liquid phase, preventing potential damage to the product’s structure.

The vacuum pump maintains a low-pressure environment by continuously removing the water vapor or solvent vapor generated during sublimation. The vapor is drawn out of the chamber, leaving behind the freeze-dried product. This process preserves the product’s original form, texture, and biological activity.

3. Secondary Drying (Desorption): After the majority of the water or solvents have been removed through sublimation, the freeze-dried product may still contain residual moisture or solvents. In the secondary drying stage, the vacuum pump continues to apply vacuum to the chamber, but at a higher temperature. The purpose of this stage is to remove the remaining moisture or solvents through evaporation.

The vacuum pump maintains the low-pressure environment, allowing the residual moisture or solvents to evaporate at a lower temperature than under atmospheric pressure. This prevents potential thermal degradation of the product. Secondary drying further enhances the stability and shelf life of the freeze-dried pharmaceutical product.

By creating and maintaining a low-pressure environment, vacuum pumps enable efficient and controlled sublimation and desorption during the freeze-drying process. They facilitate the removal of water or solvents while minimizing the potential damage to the product’s structure and preserving its quality. Vacuum pumps also contribute to the overall speed and efficiency of the freeze-drying process by continuously removing the vapor generated during sublimation and evaporation. The precise control provided by vacuum pumps ensures the production of stable and high-quality freeze-dried pharmaceutical products.

bomba de vácuo

What Is the Purpose of a Vacuum Pump in an HVAC System?

In an HVAC (Heating, Ventilation, and Air Conditioning) system, a vacuum pump serves a crucial purpose. Here’s a detailed explanation:

The purpose of a vacuum pump in an HVAC system is to remove air and moisture from the refrigerant lines and the system itself. HVAC systems, particularly those that rely on refrigeration, operate under specific pressure and temperature conditions to facilitate the transfer of heat. To ensure optimal performance and efficiency, it is essential to evacuate any non-condensable gases, air, and moisture from the system.

Here are the key reasons why a vacuum pump is used in an HVAC system:

1. Removing Moisture: Moisture can be present within an HVAC system due to various factors, such as system installation, leaks, or improper maintenance. When moisture combines with the refrigerant, it can cause issues like ice formation, reduced system efficiency, and potential damage to system components. A vacuum pump helps remove moisture by creating a low-pressure environment, which causes the moisture to boil and turn into vapor, effectively evacuating it from the system.

2. Eliminating Air and Non-Condensable Gases: Air and non-condensable gases, such as nitrogen or oxygen, can enter an HVAC system during installation, repair, or through leaks. These gases can hinder the refrigeration process, affect heat transfer, and decrease system performance. By using a vacuum pump, technicians can evacuate the air and non-condensable gases, ensuring that the system operates with the designed refrigerant and pressure levels.

3. Preparing for Refrigerant Charging: Prior to charging the HVAC system with refrigerant, it is crucial to create a vacuum to remove any contaminants and ensure the system is clean and ready for optimal refrigerant circulation. By evacuating the system with a vacuum pump, technicians ensure that the refrigerant enters a clean and controlled environment, reducing the risk of system malfunctions and improving overall efficiency.

4. Leak Detection: Vacuum pumps are also used in HVAC systems for leak detection purposes. After evacuating the system, technicians can monitor the pressure to check if it holds steady. A significant drop in pressure indicates the presence of leaks, enabling technicians to identify and repair them before charging the system with refrigerant.

In summary, a vacuum pump plays a vital role in an HVAC system by removing moisture, eliminating air and non-condensable gases, preparing the system for refrigerant charging, and aiding in leak detection. These functions help ensure optimal system performance, energy efficiency, and longevity, while also reducing the risk of system malfunctions and damage.

China wholesaler China Factory Best Price Dual Stage Vacuum Pump   with high quality China wholesaler China Factory Best Price Dual Stage Vacuum Pump   with high quality
editor by Dream 2024-04-26

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