China high quality value 4CFM 1/3HP hvac air conditioning VE135N vacuum pump vacuum pump electric

Customized support: OBM
Model Number: FY-2C-N / VE135N
Application: CZPT OEM
Horsepower: 1/3hp
Power Source: Electric
Pressure: 2pa
Structure: Single-stage Pump
Voltage: 220V 50HZ, 220V 50HZ
Power: 250W, 1/3HP
motor: none
Item: vacuum pump
Brand: VALUE
Material: aluminium alloy
Flow Rate: 4CFM(113L/min)
Oil Capacity: 250ml
Inlet Port: 7/16
Dimensions: 318*124*234mm
Weight: 8.1KG
Packaging Details: 1.Standard exporting packing 2.Water- proof packing 3.Accept custom-made
Port: HangZhou Port

Products Description

N Series Vacuum Pump–Single Stage
Rated Voltage220V~/50Hz220V~/50Hz220V~/50Hz220V~/50Hz220V~/50Hz
Motor Power150W180W250W370W550W
Pumping Rate3.6m³/h5.4m³/h7.2m³/h10.8m³/h14.4m³/h
Ultimate Pressure2Pa2Pa2Pa2Pa2Pa
Oil Capacity250ml250ml250ml415ml660ml
Inlet Port7/16″-20UNF7/16″-20UNF7/16″-20UNF7/16″-20&5/8″-18UNF7/16″-20&5/8″-18UNF
Relevant Products Packaging & Shipping Our Company HangZhou Xihu (West Lake) Dis. Refrigeration Equipment Co., Ltd. founded in 1993, located in HangZhou known as a famous historic and culture city. Since its establishment, the company, under the tenet of “Create the Brand by Credit, Build the Perfection by Details” and the business philosophy of “People First, Scientific Management, constant innovation”, has made constant development. “Products Represents Moral Quality, Quality Means Life” is the occupation belief of Xihu (West Lake) Dis. People, In the enterprising and innovative spirit, they work hard to improve properties of products, ensure top product quality and perfect details by continuous research and searching, Moreover, Its five-star after-sales service makes people get rid of worry about Xihu (West Lake) Dis. products, At present, the company enters a new period of quick development in new gesture, It will continue to product high-tech products Which bring high increasing rate and high benefit so as to benefit the society and people. Factory Show Certifications FAQ Q1: Are you a manufacturer or a trading company?A: We are a professional trading company with our own factory for 20 years experience!Q2: How about the payment term?A: Usually by T/T, L/C 30% deposit after order, You send the remaining 70% (by T/T) before shipment.Q3: How long will the delivery time?A: Usually 1 month by sea after order, but also delivery time according to the distance.Q4: How much discount can you offer?A: We will do our best to offer the competitive price, usually the discount depends on the quantity.Q5: The shipping fare costs too much, can you make it cheaper for us?A: We will try our best to negotiate with shipping company, we save every penny for our customers, if it is possible, you canarrange your own shipping agency.Q6: Do you offer free samples?As a trial order, we charge a sample fee.After the formal order, the sample fee will be refunded

Types of vacuum pumps

A vacuum pump is a device that draws gas molecules from a sealed volume and leaves a partial vacuum in its wake. Its job is to create a relative vacuum within a specific volume or volume. There are many types of vacuum pumps, including centrifugal, screw and diaphragm.
Vacuum Pump

Forward centrifugal pump

Positive displacement centrifugal vacuum pumps are one of the most commonly used pump types in the oil and gas industry. Their efficiency is limited to a range of materials and can handle relatively high solids concentrations. However, using these pumps has some advantages over other types of pumps.
Positive displacement pumps have an enlarged cavity on the suction side and a reduced cavity on the discharge side. This makes them ideal for applications involving high viscosity fluids and high pressures. Their design makes it possible to precisely measure and control the amount of liquid pumped. Positive displacement pumps are also ideal for applications requiring precise metering.
Positive displacement pumps are superior to centrifugal pumps in several ways. They can handle higher viscosity materials than centrifuges. These pumps also operate at lower speeds than centrifugal pumps, which makes them more suitable for certain applications. Positive displacement pumps are also less prone to wear.
Positive displacement vacuum pumps operate by drawing fluid into a chamber and expanding it to a larger volume, then venting it to the atmosphere. This process happens several times per second. When maximum expansion is reached, the intake valve closes, the exhaust valve opens, and fluid is ejected. Positive displacement vacuum pumps are highly efficient and commonly used in many industries.

Self-priming centrifugal pump

Self-priming centrifugal pumps are designed with a water reservoir to help remove air from the pump. This water is then recirculated throughout the pump, allowing the pump to run without air. The water reservoir can be located above or in front of the impeller. The pump can then reserve water for the initial start.
The casing of the pump contains an increasingly larger channel forming a cavity retainer and semi-double volute. When water enters the pump through channel A, it flows back to the impeller through channels B-C. When the pump is started a second time, the water in the pump body will be recirculated back through the impeller. This recycling process happens automatically.
These pumps are available in a variety of models and materials. They feature special stainless steel castings that are corrosion and wear-resistant. They can be used in high-pressure applications and their design eliminates the need for inlet check valves and intermediate valves. They can also be equipped with long intake pipes, which do not require activation.
Self-priming centrifugal pumps are designed to run on their own, but there are some limitations. They cannot operate without a liquid source. A foot valve or external liquid source can help you start the self-priming pump.

Screw Pump

The mechanical and thermal characteristics of a screw vacuum pump are critical to its operation. They feature a small gap between the rotor and stator to minimize backflow and thermal growth. Temperature is a key factor in their performance, so they have an internal cooling system that uses water that circulates through the pump’s stator channels. The pump is equipped with a thermostatically controlled valve to regulate the water flow. Also includes a thermostatic switch for thermal control.
Screw vacuum pumps work by trapping gas in the space between the rotor and the housing. The gas is then moved to the exhaust port, where it is expelled at atmospheric pressure. The tapered discharge end of the screw further reduces the volume of gas trapped in the chamber. These two factors allow the pump to work efficiently and safely.
Screw vacuum pumps are designed for a variety of applications. In some applications, the pump needs to operate at very low pressures, such as when pumping large volumes of air. For this application, the SCREWLINE SP pump is ideal. Their low discharge temperature and direct pumping path ensure industrial process uptime. These pumps also feature non-contact shaft seals to reduce mechanical wear. Additionally, they feature a special cantilever bearing arrangement to eliminate potential sources of bearing failure and lubrication contamination.
Screw vacuum pumps use an air-cooled screw to generate a vacuum. They are compact, and clean, and have a remote monitoring system with built-in intelligence. By using the app, users can monitor pump performance remotely.
Vacuum Pump

Diaphragm Pump

Diaphragm vacuum pumps are one of the most common types of vacuum pumps found in laboratories and manufacturing facilities. The diaphragm is an elastomeric membrane held in place around the outer diameter. While it is not possible to seal a diaphragm vacuum pump, there are ways to alleviate the problems associated with this design.
Diaphragm vacuum pumps are versatile and can be used in a variety of clean vacuum applications. These pumps are commercially available with a built-in valve system, but they can also be modified to include one. Because diaphragm pumps are so versatile, it’s important to choose the right type for the job. Understanding how pumps work will help you match the right pump to the right application.
Diaphragm vacuum pumps offer a wide range of advantages, including an extremely long service life. Most diaphragm pumps can last up to ten thousand hours. However, they may be inefficient for processes that require deep vacuum, in which case alternative technologies may be required. Additionally, due to the physics of diaphragm pumps, the size of these pumps may be limited. Also, they are not suitable for high-speed pumping.
Diaphragm vacuum pumps are a versatile subset of laboratory pumps. They are popular for their oil-free construction and low maintenance operation. They are available in a variety of styles and have many optional features. In addition to low maintenance operation, they are chemically resistant and can be used with a variety of sample types. However, diaphragm pumps tend to have lower displacements than other vacuum pumps.

Atmospheric pressure is a key factor in a vacuum pump system

Atmospheric pressure is the pressure created by the collision of air molecules. The more they collide, the greater the pressure. This applies to pure gases and mixtures. When you measure atmospheric pressure, the pressure gauge reads about 14.7 psia. The higher the pressure, the greater the force on the gas molecules.
The gas entering the vacuum pump system is below atmospheric pressure and may contain entrained liquids. The mechanism of this process can be explained by molecular kinetic energy theory. The theory assumes that gas molecules in the atmosphere have high velocities. The resulting gas molecules will then start moving in random directions, colliding with each other and creating pressure on the walls of the vacuum vessel.
Atmospheric pressure is a critical factor in a vacuum pump system. A vacuum pump system is useless without proper atmospheric pressure measurement. The pressure in the atmosphere is the total pressure of all gases, including nitrogen and oxygen. Using total pressure instead of partial pressure can cause problems. The thermal conductivity of various gases varies widely, so working at full pressure can be dangerous.
When choosing a vacuum pump, consider its operating range. Some pumps operate at low atmospheric pressure, while others are designed to operate at high or ultra-high pressure. Different types of pumps employ different technologies that enhance their unique advantages.
Vacuum Pump

The screw pump is less efficient in pumping gases with smaller molecular weight

Vacuuming requires a high-quality pump. This type of pump must be able to pump gas of high purity and very low pressure. Screw pumps can be used in laboratory applications and are more efficient when pumping small molecular weight gases. Chemical resistance is critical to pump life. Chemical resistant materials are also available. Chemically resistant wetted materials minimize wear.
Gear pumps are more efficient than screw pumps, but are less efficient when pumping lower molecular weight gases. Gear pumps also require a larger motor to achieve the same pumping capacity. Compared to gear pumps, progressive cavity pumps also have lower noise levels and longer service life. In addition, gear pumps have a large footprint and are not suitable for tight spaces.
Progressive cavity pumps have two or three screws and a housing and side cover. They are also equipped with gears and bearings. Their mechanical design allows them to operate in high pressure environments with extremely low noise. The progressive cavity pump is a versatile pump that can be used in a variety of applications.
Dry screw compressors have different aspect ratios and can operate at high and low pressures. The maximum allowable differential pressure for screw compressors ranges from 0.4 MPa for 3/5 rotors to 1.5 MPa for 4/6 rotors. These numbers need to be determined on a case-by-case basis.

China high quality value 4CFM 1/3HP hvac air conditioning VE135N vacuum pump     vacuum pump electricChina high quality value 4CFM 1/3HP hvac air conditioning VE135N vacuum pump     vacuum pump electric