2BV Vacuum Pump Liquid Ring 0.5 To 300m3/Min Cast Iron Stainless Steel

Product Description

The 2BV series water ring vacuum pump is a new generation of energy-saving vacuum equipment, suitable for pumping gas and water vapor, with a maximum suction pressure of 33mbar absolute pressure (97% vacuum degree) and a maximum discharge pressure of 0.26MPa (absolute pressure) when used as a compressor. It comprehensively replaces SK, 2SK series water ring vacuum pumps and W, WY, WL series reciprocating vacuum pumps with superior performance, and is widely used in petroleum, chemical, machinery, mining, light industry, papermaking, power, metallurgy, medicine, food and other industries, as well as municipal and agricultural sectors.

This series has outstanding structural and performance advantages: The motor direct connection design saves space, is easy to install and maintain. All models are equipped with John Crane mechanical seals as standard, with NTN or NSK imported bearings, ensuring stable operation and long service life. Castings adopt precision casting technology, with clean appearance, good heat dissipation and excellent mechanical performance. The full series is equipped with stainless steel impellers; the 2BV2 series is fully configured with stainless steel discs and impellers, with high strength, durability and enhanced corrosion resistance. If all flow passage parts are made of stainless steel, it can work in more harsh environments.

The unique flexible exhaust port design avoids over-compression, ensuring optimal efficiency within the performance range. All models are equipped with cavitation protection pipe interfaces; when working under extreme pressure, opening the interface (or connecting with a separator) can eliminate cavitation noise and protect the pump while maximizing the suction effect. The 2BV2-Ex and 2BV6 series are specially designed for flammable and explosive environments, with explosion-proof grade dIIBT4, suitable for pumping flammable and explosive gases. All adopt YE2 series high-efficiency motors, with protection grades IP54/IP55 and insulation grade F, realizing energy saving and environmental protection. Flexible seals can all use PTFE, greatly extending the service life under harsh working conditions.

Custom Attributes

1. Product Type: Water ring vacuum pump/compressor

2. Vacuum Degree: Up to 97% (33mbar absolute pressure)

3. Core Configuration: John Crane mechanical seal + NTN/NSK imported bearings

4. Material Advantage: Stainless steel impeller (full series standard), optional full stainless steel flow passage

5. Special Function: Equipped with cavitation protection interface, explosion-proof optional (dIIBT4)

6. Motor Standard: YE2 series high-efficiency motor, IP54/IP55 protection grade

7. Application Scenarios: Vacuum filtration, degassing, evaporation, concentration, feeding, moisture regain

8. Installation Feature: Motor direct connection, compact structure, easy maintenance

9. Sealing Option: PTFE flexible seals for harsh working conditions

10. Performance Highlight: Flexible exhaust port, no over-compression, optimal efficiency

High efficiency roots + water ring vacuum pump unit

High efficiency roots + water ring vacuum pump unit

Specifications

Notices

1. The pump is suitable for pumping gas and water vapor; do not pump corrosive gases without selecting the corresponding material configuration.

2. When working for a long time under suction pressure close to the limit vacuum, must connect the cavitation protection pipe to avoid cavitation damage to the pump.

3. The working fluid flow should be controlled according to the actual situation; if not recycled, the flow should be doubled as listed in the parameter table.

4. Installation should be carried out in a well-ventilated area, ensuring the pump is level and stable, with sufficient space for maintenance.

5. For explosion-proof models (2BV2-Ex/2BV6 series), ensure the installation environment meets the explosion-proof grade requirements, and do not modify the motor or electrical components without authorization.

6. Regularly check the mechanical seal and bearing status, replace lubricating oil and seals according to the maintenance cycle.

7. When using in harsh environments (such as corrosive media), select full stainless steel flow passage and PTFE seal configuration.

8. The exhaust pipe should be smoothly connected, avoiding back pressure; the working fluid should be clean to prevent impurities from entering the pump cavity and damaging the impeller and seal.

Applications

Widely used in petroleum, chemical, machinery, mining, light industry, papermaking, power, metallurgy, medicine, food and other industries, as well as municipal and agricultural sectors. Typical applications include vacuum filtration, vacuum feeding, vacuum degassing, vacuum evaporation, vacuum concentration, vacuum moisture regain, vacuum packaging, etc. Due to the isothermal gas compression process, it is especially suitable for pumping flammable and explosive gases; it can also pump dust-containing and water-containing gases, with a wide range of application scenarios.

FAQ

Q1. Can I order a sample for performance testing?

A: Yes, sample orders are welcome. We can provide customized configurations (such as material, explosion-proof) according to your actual working conditions.

Q2. What materials are available for the pump's flow passage parts?

A: The standard configuration is cast iron with stainless steel impeller; optional full stainless steel flow passage parts for corrosive working conditions.

Q3. Is there a MOQ limit for this product?

A: No, the minimum order quantity is 1 unit, supporting sample procurement and small-batch orders.

Q4. What is the difference between explosion-proof and non-explosion-proof models?

A: Explosion-proof models (2BV2-Ex/2BV6 series) are equipped with dIIBT4 grade explosion-proof motors and IP55 protection grade, suitable for flammable and explosive environments; non-explosion-proof models are IP54, for general environments.

Q5. How to solve cavitation during operation?

A: The pump is equipped with a cavitation protection interface; connect it to a separator or open the interface directly when working under extreme pressure to eliminate cavitation noise and protect the pump.

Q6. What is the warranty period of the 2BV series water ring vacuum pump?

A: We provide a 1-year warranty, covering manufacturing defects and component failures (excluding wear parts and damage caused by improper use or harsh media without corresponding configuration).

Q7. How long is the delivery time for mass production?

A: 8-12 working days after deposit confirmation; explosion-proof or customized material models may take 1-2 more working days.

Q8. How to choose the appropriate model?

A: Please provide parameters such as required pumping speed, vacuum degree, medium type (whether flammable, explosive, corrosive), working temperature, etc., and our technical team will recommend the suitable model for you.

Q9. Can the pump be used as a compressor?

A: Yes, when used as a compressor, the maximum discharge pressure is 0.26MPa (absolute pressure), suitable for low-pressure compression scenarios.

Q10. What is the service life of the mechanical seal and bearings?

A: Under normal working conditions, the mechanical seal service life is about 8000 hours, and the NTN/NSK bearings service life is about 15000 hours; regular maintenance can extend the service life.