China factory Italian PVR Vacuum Pump, Rotary Vane Pump, Pvl Single-Stage Rotary Vane Pump vacuum pump distributors

Product Description

Product Description

PVL15/PVL35

Ultimate pressure:≤ 0,5 and ≤ 20 mbar

Pumping speed:17÷42 m3/h

 

The PVL 15 and PVL 35 pumps are single-stage rotary vane lubricated pumps with oil recirculation.
The flanged electric motor is connected by means of an elastic coupling.
An integrated control valve prevents the oil from coming back and the return of air into the chamber to be pumped down during the stop phase.
The oil tank is provided with a system for separating the oil mists from the exhaust air; the separated oil is automatically recovered from the pump.
The gas ballast prevents condensation inside the pump when small quantities of steam are sucked.

The PVL 15 and PVL 35 pumps are suitable for the evacuation of closed systems or to operate at a constant vacuum included in the following range:

PVL 15 – PVL 35 from 0,5 to 300 mbar (absolute)

PVL 15 B – PVL 35 B from 20 to 850 mbar (absolute)

 

ACCESSORIES

 

The following accessories are useful for the installation and for the control of the pump operation parameters:

  •   External suction filter

  •   Vacuum gauges / vacuostats

  •   Pressure gauges / pressure switches

  •   Thermostat

  •   Minimum oil level switch

Main specifications

     

PVL15

PVL35

Pumping speed

m³/h

50Hz

17

35

60Hz

20

42

Ultimate pressure with gas ballast (abs.)

mbar

 

≤ 0,5

(≤ 20 /B)

≤ 0,5

(≤ 20 /B)

Motor power

kW

50Hz

0,37

0,75

60Hz

0,55

1,1

Motor speed

rpm

50Hz

1500

1500

60Hz

1800

1800

Water vapour tolerance

mbar

 

30

30

Water vapour pumping capacity

kg/h

 

0,25

0,5

Lubricant charge

l

 

1

1,5

Sound pressure level

dB(A)

50Hz

66

68

60Hz

67

69

Dimensions

L x B x H

mm

50Hz

380x260x222

460x296x271

60Hz

415x260x222

488x296x271

Weight

kg

50Hz

23

38

60Hz

26

40

Connections*

Inlet

 

½” Gas

¾” Gas

Outlet

 

½” Gas

¾” Gas

* Other types of connection available CHINAMFG request

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After-sales Service: 12 Months From Date of Start-up or 15 Months From
Warranty: 12 Months From Date of Start-up or 15 Months From
Oil or Not: Oil
Structure: Rotary Vacuum Pump
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: Vacuum
Customization:
Available

|

rotary vane pump

What Is the Role of Lubrication in Rotary Vane Pump Operation?

Lubrication plays a critical role in the operation of a rotary vane pump, ensuring its smooth and efficient performance. Here’s a detailed explanation of the role of lubrication in rotary vane pump operation:

– Friction Reduction: The primary function of lubrication is to reduce friction between moving parts within the pump. In a rotary vane pump, the vanes slide in and out of the rotor slots as the rotor rotates. Lubrication forms a thin film between the vanes and the rotor, reducing the friction and allowing smooth movement. This friction reduction minimizes wear and tear on the vanes and rotor, contributing to the longevity of the pump.

– Seal Enhancement: Lubrication also helps in creating a tight seal between the vanes and the pump housing. The lubricant fills any gaps or imperfections, ensuring proper sealing and preventing gas or fluid leakage. This is particularly important for achieving and maintaining the desired vacuum levels in the pump. Effective sealing enhances the pump’s efficiency and performance.

– Heat Dissipation: During operation, a rotary vane pump generates heat due to the friction and compression of gases or fluids. Lubrication helps in dissipating this heat by absorbing and carrying it away from the critical components of the pump. It prevents excessive heat buildup that can lead to component damage or reduced performance. Proper lubrication ensures that the pump operates within the desired temperature range.

– Wear Protection: The lubricant forms a protective layer on the surfaces of the vanes, rotor, and other moving parts. This layer acts as a barrier, minimizing direct metal-to-metal contact and reducing wear and tear. It helps prevent damage to the vanes and rotor caused by friction and ensures the longevity of these components. Lubrication also protects against corrosion and helps maintain the overall integrity of the pump.

– Noise Reduction: Lubrication contributes to noise reduction in a rotary vane pump. The smooth movement facilitated by the lubricant minimizes vibrations and eliminates or reduces unwanted noise generated during operation. This is particularly important in applications where low noise levels are desired, such as laboratory or medical settings.

– Performance Optimization: Proper lubrication is crucial for maintaining the pump’s performance and efficiency. It ensures that the pump operates with minimal resistance and energy loss, allowing it to achieve the desired vacuum levels or fluid flow rates effectively. Lubrication helps optimize the pump’s overall performance and contributes to its reliability and effectiveness in various applications.

It’s important to note that using the correct type of lubricant specified by the pump manufacturer is essential. Different rotary vane pumps may have specific lubrication requirements, including the type of lubricant and recommended lubrication intervals. Adhering to these guidelines ensures that the lubrication effectively fulfills its role and maintains the pump’s optimal operation.

rotary vane pump

What Are the Main Components of a Rotary Vane Pump?

A rotary vane pump consists of several key components that work together to create a pumping action. Here’s a detailed explanation of the main components:

– Rotor: The rotor is the central rotating element of the rotary vane pump. It is typically made of a durable material such as stainless steel or cast iron. The rotor is connected to a drive mechanism, such as an electric motor, which provides the rotational power.

– Vanes: The vanes are sliding elements that are inserted into radial slots in the rotor. They can be made of various materials, including carbon, graphite, or synthetic materials. The number of vanes in a rotary vane pump can vary, but typically there are multiple vanes evenly spaced around the rotor. The vanes are crucial for creating a seal against the stator walls and for generating the pumping action.

– Stator: The stator is the stationary part of the rotary vane pump. It forms the pump chamber and provides the housing for the rotor and vanes. The stator is typically cylindrical in shape with an eccentric bore that accommodates the rotor. It is commonly made of materials such as cast iron or stainless steel to ensure durability and resistance to wear.

– Inlet and Outlet Ports: The rotary vane pump has separate inlet and outlet ports. The inlet port allows the entry of gas or fluid into the pump, while the outlet port facilitates the discharge of the pumped medium. These ports are strategically positioned on the pump housing to enable the flow of the medium in and out of the pump.

– Seals: Seals are essential components of a rotary vane pump as they prevent leakage and maintain the integrity of the pumping system. The primary seal is formed between the vanes and the stator walls, ensuring that gas or fluid is contained within the pump chamber during the pumping process. Additional seals may be present at the inlet and outlet ports to prevent any leakage at these points.

– Lubrication System: Rotary vane pumps often require lubrication to minimize friction and wear between the rotating components. Lubrication is typically achieved by introducing a small amount of oil or lubricant into the pump chamber. The lubricant helps reduce friction between the vanes and the stator walls, ensuring smooth operation and extending the lifespan of the pump.

– Exhaust Valve: Some rotary vane pumps feature an exhaust valve, also known as an anti-suckback valve. This valve is located at the outlet port and prevents the reverse flow of gas or fluid back into the pump when it is not in operation. The exhaust valve helps maintain the integrity of the vacuum or pressure created by the pump.

– Drive Mechanism: The drive mechanism provides the rotational power to the rotor, enabling the pumping action. In most cases, an electric motor is used as the drive mechanism, although other power sources such as hydraulic or pneumatic systems can also be employed.

– Base or Mounting Plate: The base or mounting plate provides a stable platform for the rotary vane pump. It is typically made of sturdy materials such as cast iron or steel and is designed to support the weight of the pump and provide a secure attachment point for installation.

– Control and Monitoring Devices (Optional): Depending on the specific application, rotary vane pumps may be equipped with control and monitoring devices. These can include pressure sensors, flow meters, temperature sensors, and control panels that allow for the regulation and monitoring of pump performance.

– Safety Features (Optional): Some rotary vane pumps may include safety features such as overpressure relief valves or automatic shutdown mechanisms to prevent damage to the pump or the system in case of abnormal operating conditions.

In summary, the main components of a rotary vane pump include the rotor, vanes, stator, inlet and outlet ports, seals, lubrication system, exhaust valve, drive mechanism, base or mounting plate, as well as optional control and monitoring devices and safety features. These components work together to create a continuous pumping action and ensure the efficient operation of the rotary vane pump.

China factory Italian PVR Vacuum Pump, Rotary Vane Pump, Pvl Single-Stage Rotary Vane Pump   vacuum pump distributorsChina factory Italian PVR Vacuum Pump, Rotary Vane Pump, Pvl Single-Stage Rotary Vane Pump   vacuum pump distributors
editor by CX 2024-04-03

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