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China Screw Water Ring Vacuum Pump Unit - Quality Suppliers and Reliable Factory Solutions

Introducing the Screw Water Ring Vacuum Pump Unit, a high-efficiency vacuum solution designed for optimal performance. This innovative unit features a Screw pump as the primary pump, complemented by 2BV or 2BE water ring pumps serving as pre-stage pumps. The water ring pump plays a crucial role in achieving the necessary pre-vacuum for the Screw pump, which functions effectively as a booster pump. As a leading China factory and supplier in the vacuum technology sector, we provide customizable solutions to meet your needs. With each additional stage of Screw pumps connected, the ultimate vacuum level of our units can significantly increase, offering exceptional vacuum capabilities. Experience unparalleled reliability and efficiency with our Screw Water Ring Vacuum Pump Unit, crafted to elevate your operations

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Product Characteristics

Large pumping capacity

Pumping capacity 30L/S - 20000L/S

Energy saving

5.5KW - 180KW

Wide application range

Suitable for chemical, pharmaceutical, oil, new energy, distillation, rectification, PET sheet extrusion and other processes

Self-manufactured and produced

Self-manufactured and produced, with over 40 vacuum-related patent technologies, rated as a national-level high-tech enterprise and a science and technology enterprise, has passed ISO9001 quality management system certification

Product Parameters

Product Details

Unit Model	Pump Model		Draw Rate (L/S)	Absolute Vacuum (Pa)	Total Power (KW)
Unit Model	Main Pump	Pre-stage Pump	Draw Rate (L/S)	Absolute Vacuum (Pa)	Total Power (KW)
JZJ2B30-1	ZJP30	2BV5110	30	267	5.5
JZJ2B70-1	ZJP70	2BV5111	70		7
JZJ2B150-1	ZJP150	2BV5131	150		14
JZJ2B300-2	ZJP300	2BV5161	300		19
JZJ2B300-1	ZJP300	2BE1 202	300		26
JZJ2B600-2	ZJP600	2BE1 203	600		44.5
JZJ2B600-1	ZJP600	2BE1 252	600		52.5
JZJ2B70-2.1	ZJP70	ZJP30/2BV5110	70	25	7
JZJ2B150-2.1	ZJP150	ZJP70/2BV5111	150		10
JZJ2B300-2.1	ZJP300	ZJP150/2BV5131	300		18
JZJ2B600-2.2	ZJP600	ZPJ300/2BV5161	600		26.5
JZJ2B1200-2.2	ZJ1200	ZJP600/2BE1203	1200		55.5
JZJ2B1200-2.1	ZJ1200	ZJP600/2BE1252	1200		63.5
JZJ2B2500-2.1	ZJ2500	ZJ1200/2BE1303	2500		133
JZJ2B5000-4.1	ZJ5000	ZJ1200/2BE1303	5000		176
JZJ2B70-2.1.1	ZJP70	ZJP30/ZJP30/2BV5110	70	0.5	8.5
JZJ2B150-2.2.1	ZJP150	ZJP70/ZJP30/2BV5110	150		10
JZJ2B300-2.2.1	ZJP300	ZJP150/ZJP70/2BV5111	300		14
JZJ2B600-2.2.1	ZJP600	ZJP300/ZJP150/2BV5131	600		23.5
JZJ2B1200-2.2.2	ZJ1200	ZJP600/ZJP300/2BV5161	1200		37.5
JZJ2B1200-2.2.1	ZJ1200	ZJP600/ZJP300/2BE1202	1200		51.5
JZJ2B2500-2.2.1	ZJ2500	ZJ1200/ZJP600/2BE1252	2500		85.5
JZJ2B2500-4.2.1	ZJ2500	ZJP600/ZJP300/2BE1202	2500		55.5
JZJ2B5000-4.2.1	ZJ5000	ZJ1200/ZJP600/2BE1252	5000		118.5

Important Notes & Explanations

1 The series in the table represents the recommended standards. Due to the varying working conditions in actual production applications, the gas intake and pressure will undergo many changes. Therefore, during the selection process, calculations or reference to the usage of existing equipment should be conducted based on the actual vacuum extraction process, gas release process, condensation of non-volatile gases, time variations of the intake pressure, etc.
2 The technical indicators of the single pump are detailed in the respective pump parameter tables.
3 The maximum intake pressure refers to the highest pressure that the main pump can start at. If it operates for a long time at a pressure higher than this, it will cause the main pump to overload.
4 If the vacuum pump motor, electrical contact vacuum gauge/pressure transmitter, and electrical control cabinet need to be explosion-proof, please specify during the order. The 2BV5 water ring vacuum pump in the table should be correspondingly changed to the 2BV6 series.

Frequently Asked Questions (FAQ)

Q What does the JZJ2B series vacuum unit consist of, and how is it configured?

The JZJ2B series vacuum unit consists of a main pump (roots vacuum pump such as ZJP or ZJ series) and a pre-stage pump (water ring vacuum pump such as 2BV or 2BE series). The configuration varies based on the required draw rate and absolute vacuum level, with single-stage, two-stage, and three-stage pre-stage pump combinations available to meet different vacuum requirements.

Q What is the achievable absolute vacuum range for the JZJ2B vacuum units?

The JZJ2B series vacuum units can achieve three main absolute vacuum levels: 267 Pa for single pre-stage pump configurations, 25 Pa for two-stage pre-stage pump configurations, and as low as 0.5 Pa for three-stage pre-stage pump configurations. The appropriate vacuum level should be selected based on actual process requirements.

Q How should I select the correct JZJ2B unit model for my application?

Model selection should be based on your actual process requirements, including the required vacuum extraction rate (L/S), target absolute vacuum (Pa), gas release characteristics, condensation of non-volatile gases, and time variations of intake pressure. It is recommended to perform detailed calculations or refer to the operating parameters of existing similar equipment before making a final selection.

Q What happens if the main pump operates continuously above the maximum intake pressure?

The maximum intake pressure defines the highest allowable starting pressure for the main pump. If the unit operates continuously at pressures exceeding this limit, the main pump will experience overload conditions, which can lead to increased power consumption, excessive heat generation, accelerated wear, and potential damage to the pump. Always ensure operating conditions remain within the specified pressure range.

Q Can the JZJ2B vacuum units be configured for explosion-proof environments?

Yes. If your application requires explosion-proof specifications for the vacuum pump motor, electrical contact vacuum gauge, pressure transmitter, or electrical control cabinet, this must be clearly specified at the time of ordering. Additionally, the 2BV5 water ring vacuum pump listed in the standard configuration table should be replaced with the corresponding 2BV6 series explosion-proof model.

Q Where can I find detailed technical parameters for individual pumps used in the JZJ2B units?

Detailed technical indicators for each individual pump component — including the ZJP, ZJ roots vacuum pumps and the 2BV/2BE water ring vacuum pumps — are available in their respective pump parameter tables. These tables provide comprehensive specifications such as pumping speed curves, motor power ratings, inlet/outlet flange sizes, operating temperature ranges, and other performance data relevant to each pump model.

China Screw Water Ring Vacuum Pump Unit - Quality Suppliers and Reliable Factory Solutions

Product Characteristics

Large pumping capacity

Energy saving

Wide application range

Self-manufactured and produced

Product Parameters

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