The details of this product are relatively simple and clear. The manufacturer has several explanations regarding this:

1. Regarding product quality. Our factory has been established for nearly 25 years, focusing on the production of water ring vacuum pumps and vacuum pump units. During this period, we have never produced other types of pumps, and we always choose the best accessories. We strictly test the vacuum degree, pumping volume, motor condition, pump operation, etc. before leaving the factory, which is known as "our advantages or why we are chosen". Our factory believes that there is no need or energy to present this in exquisite pictures.

2. Regarding after-sales service: The product has a one-year warranty, and our after-sales team consists of many experienced employees with strong professionalism. There are no after-sales problems that are pushed to customers or caused by working conditions, and we are responsible and conscientious (just selling without repairing cannot last for 25 years). Our factory believes that it is not necessary to present this in the form of exquisite images.

3. Regarding the details of this product, based on years of production and sales experience and customer concerns, our factory has designed a relatively simple design, including company introduction, product structure, operating principle, parameters, application scope, etc. (directly include the details related to these points in the product sample). If you need a size chart, you can refer to the attached manual or consult our factory directly. There is no need to cover everything.

4. In addition to the main image of this product,The physical images and related videos in the details are all taken in the workshop and have not been modified except for the addition of our factory watermark. Advocate for practicality and oppose extravagance without substance.The vacuum pump was not invented by any manufacturer. If the assembly accuracy is accurate, the parameters will be the same, only there will be differences in the quality of the accessories.

5. Regarding the price:The raw materials of the 2BV series water ring vacuum pump fluctuate frequently, and some customers do not require tax invoices. Therefore, the listed price is the pump head reference price (excluding tax). Please negotiate based on the regional shipping cost, whether it includes tax, and whether it is a complete machine.

Overall, we will work hard to make pumps and sell them effectively.Welcome new and old customers to inquire and purchase.

Shandong Zibo Boshan Daming Vacuum Pump Factory is a designated enterprise of the Provincial Department of Machinery for the production of vacuum equipment. It is a member unit of the China Vacuum Association. Our factory has a district level vacuum research institute and a district level technical supervision bureau vacuum testing center. Our factory has strong technical strength and excellent equipment.

The principle of our factory is "quality first, reputation first", and we passed the ISO9001 quality system certification in June 2000.

The "Daming" brand vacuum pump produced by our factory is renowned for its excellent craftsmanship, stable and reliable performance, and excellent quality in both domestic and international markets. The main products include the sz, szb, sk, 2bv, 2bea, 2bec series water ring vacuum pumps and compressors; 2sk-p1 series two-stage water ring pump - atmospheric jet pump mechanical; 2sy series water ring compressor; w. Wy series reciprocating vacuum pump; WL series vertical reciprocating vacuum pump; x. 2x series rotary vane vacuum pump; ZJ and ZBK series Roots vacuum pumps; Production of JZJ2S series Roots water ring vacuum units and other application equipment, as well as various working pumps. The products are widely used in fields such as machinery, petroleum, chemical, papermaking, food, sugar production, electricity, electronics, metallurgy, ceramics, water diversion, printing and dyeing, and building materials.

Our factory has a sound quality assurance system, accumulated rich experience in design and manufacturing, and has strong independent innovation and development capabilities. Implemented computer-aided management (MIS), computer-aided testing (CAT), and computer-aided design (CAD)

Shandong Boshan Daming Vacuum Pump Factory provides customers with reliable quality assurance through enthusiastic and comprehensive service. All employees of Daming are willing to work together with friends from all walks of life at home and abroad to create brilliance.

Contact information: Factory Manager Yan

Mobile phone number: 18560363286/13070693507 18668993485 (WeChat)

Contact number: 0533-4505958

Contact address: Boshan District, Zibo City, Shandong Province

Product Features

The 2BV series vacuum pump is suitable for extracting gases and water vapor, with a suction pressure of up to 33mbar absolute pressure (97% vacuum degree). When the vacuum pump operates for a long time with a suction pressure below 80mbar, a cavitation protection tube should be connected to protect the pump. If equipped with an atmospheric injector, the suction pressure can reach 10mbar, and the injector can be directly installed on the vacuum pump. When used as a compressor, its pressure reaches 0.26MPa (absolute pressure).

The coaxial direct connection design of the pump saves space and is easy to install.

Using mechanical seals as standard configuration eliminates leaks and makes maintenance easy.

Smooth operation, with noise levels as low as 62 decibels.

The unified corrosion-resistant design and bronze impeller improve the corrosion resistance of the pump, and the use of stainless steel material is suitable for more demanding applications.

5. Flexible exhaust port design ensures high efficiency of 2BV within its performance range without generating over compression.

1. Start the water ring vacuum pump

Before starting the water ring vacuum pump that has been parked for a long time, it must be manually rotated several times to confirm that there is no jamming or other damage inside the water ring vacuum pump.

Start the water ring vacuum pump in the following order.

(1) Open the exhaust valve.

(2) Start the motor (pay attention to the forward and reverse rotation of the motor)

(3) Quickly open the water supply pipe. Gradually increase the water supply until it meets the specified requirements (be careful not to run the vacuum pump dry).

2. Stop using the water ring vacuum pump

The water ring vacuum pump should be stopped in the following order:

(1) If there is a valve in the intake pipe, close the valve on the intake pipe.

(2) Close the water supply pipe and quickly shut down the vacuum pump.

(3) After parking, the water in the pump chamber should be drained to avoid blade and pump shaft breakage when starting again.

Maintenance of water ring vacuum pump:

1. To avoid wear and tear on the impeller, pump body, or jamming of the impeller, dust particles that enter the pump chamber with gas and working fluid can be washed away through the flushing port at the bottom of the pump.

2. If hard water is used as the working fluid, it must be softened or the pump must be cleaned with a solution within a certain period of time.

3. The bearings of electric motors that often work have a temperature that is 15 ℃ to 20 ℃ higher than the surrounding temperature, and the temperature should not exceed 55 ℃ to 60 ℃. Bearings that work normally should be oiled 1-2 times a year, cleaned at least once a year, and all lubricating oil should be replaced.

4. If there is leakage in the mechanical seal used, the dynamic and static rings of the mechanical seal should be checked for damage or aging of the sealing ring. If the above situation occurs, new parts need to be replaced.