Overview:

The Dual-Union Full Plastic Horizontal Water Jet Vacuum Unit is an extended high vacuum extraction product based on the Single-Union Unit, with an extraction capacity of up to 1200 m/h. It can also be used as a backup for workstations. The Dual-Union Unit, while maintaining the characteristics of the Single-Union Unit, adds an iron bracket base (made of No. 8 channel steel), enlarges the water tank, and adds butterfly valves to meet the more diverse needs of users.

The quality of the unit depends heavily on the machine seal.

Model Description:

Product Images:

Specs and Application Range:

1. Limited space requires operation under high vacuum conditions. For instance, during the initial stage of material reaction, two vacuum pumps can be turned on to achieve the required vacuum volume, thereby reducing the reaction time, saving energy, and improving product quality and output. In the later stage of the material reaction, when less gas is produced, one vacuum pump can be turned off to achieve the same energy-saving effect.

2. At critical workstations, one vacuum pump from the twin-unit set can serve as a standby pump. In the event that one is damaged and requires repair, the other can be used directly, without affecting production.

Model and Technical Parameters:

Product Highlights:

Utilize our exclusive **mechanical seal. It offers superior heat dissipation and extended lifespan.**

The dual-unit set inherits all the advantages of the single-unit SPBZ series units.

The base of the double-connected unit is made of national standard No. 8 channel steel, and has undergone anti-corrosion treatment.

The dual-pump unit features an imported butterfly valve for inlet installation. When repairing or replacing the pump and accessories, there's no need to empty the water in the tank. If one pump is damaged, the other can still be used, ensuring production is not disrupted.

Others:

The water jet vacuum unit, due to its simple structure, ease of maintenance, and excellent corrosion resistance, is widely used in chemical, pesticide, pharmaceutical, and other enterprises. It should be noted that, under normal operation, the maintenance cost of a water jet vacuum unit is very low. However, you may have encountered a situation like this: My unit was operating normally, and the water temperature was not too high, but suddenly, the mechanical seal burned out, the impeller melted, and the pump body or cover also melted away. In no time, a polypropylene centrifugal pump was destroyed, and a thousand or even several thousand yuan was gone. In such a case, you might blame the staff for not taking good care of the equipment, but they might also be innocent.

In the absence of dry friction caused by mechanical seals, a significant portion of the issue may stem from the vaporization of liquid within the pump under certain conditions (resulting in localized vacuum within the pump), or from a high gas content in the liquid being pumped. This vapor or gas accumulates on the cooling surface of the mechanical seal, leading to localized dry friction during normal operation. Within seconds, the seal, operating at 2900 RPM, rapidly heats up to 300-400 degrees Celsius or higher.

If you've encountered such issues while using other products, we recommend our water jet vacuum unit, which is equipped with our self-developed **sealing technology. After trials by numerous clients, it has proven to offer superior cooling performance and effectively resolves this issue. It significantly reduces the risk of inadequate cooling and subsequent damage to the equipment. This technology safeguards the users' investments (without changing the price).

**Principle of Mechanical Seal: 1. The contact area between the seal and the liquid is increased by 3-5 times. 2. The cooling part of the seal extends into the center of the pump body, rather than in the corner of the off-center pump body. 3. Local sharp angles to disrupt bubble formation.

Below is a case from one of our clients. Due to the transition period between the old and new sealing mechanisms, we partially used the old model on the equipment, leading to the issues described above. After **replacing** the sealing mechanisms, the problems were resolved.

Our company (Jiande City Science and Technology Experimental Factory) has been committed to the research, production, and sales of anti-corrosion pumps, anti-corrosion vacuum equipment, anti-corrosion waste gas treatment equipment, and anti-corrosion storage equipment for many years. Our products have won the Hangzhou People's Science and Technology Progress Award, been organized and appraised by the National Education Commission and Provincial Science and Technology Commission, and received the Provincial Major Scientific and Technological Achievement Award. Over three decades, with continuous innovation in product types and optimization of product performance, our products and services have received unanimous praise from customers.

In 1984, Zhang Zhiqiang, then the Deputy Technical Director of Meicheng Anti-Corrosion Equipment Factory, participated in the research and development of "Polypropylene Tubular Heat Exchanger" for the Anti-Corrosion Department of Zhejiang University of Technology on behalf of the enterprise. Since then, the production and use of polypropylene equipment began domestically.

Established Jiande Science and Technology Experimental Factory in 1993, affiliated with the Jiande Municipal Committee of Science and Technology. Successfully developed the "Corrosion-resistant Plastic Water Jet Vacuum Pump," which won the Hangzhou City People's Science and Technology Progress Award.