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China Screw Water Ring Vacuum Pump Unit - Leading Factory and Suppliers for Enhanced Vacuum Solutions

Introducing the Screw Water Ring Vacuum Pump Unit, a highly efficient vacuum solution manufactured in China by leading suppliers and factories. This advanced vacuum system comprises a screw pump as the primary component, complemented by 2BV or 2BE water ring pumps serving as pre-stage pumps. The water ring pump plays a crucial role in achieving the essential pre-vacuum required for optimal screw pump performance. Designed to enhance efficiency, the screw pump acts as a booster, allowing for significant improvements in vacuum levels. Notably, for each additional stage of screw pumps added, the ultimate vacuum level of the unit can increase by an entire order of magnitude, making this product a preferred choice among industry professionals seeking reliability and effectiveness. Choose our Screw Water Ring Vacuum Pump Unit for superior performance backed by Chinese craftsmanship

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Product Characteristics

High vacuum

Ultimate vacuum degree 267Pa - 0.5Pa

Large pumping capacity

Pumping capacity 30L/S - 20000L/S

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

Foryou vacuum pump customer cases

Tsinghua University, Wanguang Food, Hainan Coconut Tree, Coca-Cola, Fuyao Glass Industrial Group, Longliqi Industrial, Adolph Cosmetics, Changhong Chemicals, Chengdu Aircraft, China National Petroleum, Hengyi Caprolactam, Yufeng New Materials, Asia Pharmaceutical Group, Xintianyuan Pharmaceutical, Yuekang Pharmaceutical Group, Deliangfang Pharmaceutical, Yanjing Beer, Baiwei Beer, Chinese Academy of Sciences, Huayuan New Energy, Zunxinnew Energy, etc., 200+ specialized industries and 10000+ customers. The top players in multiple industries are all using Foryou vacuum pumps.

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

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

Q What does the unit model naming convention (e.g., JZJ2B300-2) indicate?

The unit model designation encodes key performance parameters. For example, "JZJ2B" identifies the series type (roots-water ring vacuum unit), the number following indicates the pumping rate (e.g., 300 L/S), and the suffix (e.g., -2) denotes the configuration stage or variant. Always refer to the parameter table for precise specifications corresponding to each model code.

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

Selection should be based on your actual process requirements, including the required vacuum level (absolute vacuum in Pa), the draw rate (L/S), and the nature of the gas being evacuated. You should evaluate the gas release process, condensation of non-volatile gases, and how intake pressure varies over time. Consulting with an engineer or referencing existing equipment usage is strongly recommended.

Q What is the significance of the "absolute vacuum" value listed in the table?

The absolute vacuum value (measured in Pascals) indicates the ultimate vacuum level that the unit can achieve under standard operating conditions. Units listed with 267 Pa are suitable for moderate vacuum requirements, while those rated at 25 Pa or 0.5 Pa are designed for higher-precision or deeper vacuum applications. Choose accordingly based on your process demands.

Q What happens if the main pump operates above the maximum intake pressure for extended periods?

Operating the main pump continuously at a pressure higher than its rated maximum intake pressure will result in motor overload, which can lead to overheating, premature wear, and potential damage to the pump system. It is critical to ensure that operating pressures remain within the specified limits during sustained production runs.

Q When is explosion-proof equipment required, and how does it affect the unit specification?

Explosion-proof components are required when the operating environment contains flammable gases, vapors, or dust that could pose an ignition risk. In such cases, the vacuum pump motor, electrical contact vacuum gauge or pressure transmitter, and electrical control cabinet must all meet explosion-proof standards. The 2BV5 water ring vacuum pump listed in the standard table should be upgraded to the equivalent 2BV6 series. Please specify this requirement at the time of ordering.

Q Where can I find the detailed technical parameters for the individual pumps (main pump and pre-stage pump)?

Detailed technical indicators for each individual pump — including the main pump (e.g., ZJP series, ZJ series) and pre-stage pumps (e.g., 2BV5, 2BE1 series) — are provided in their respective pump parameter tables. These tables contain motor ratings, rotational speed, flange sizes, and other specifications not covered in the unit combination table above.

China Screw Water Ring Vacuum Pump Unit - Leading Factory and Suppliers for Enhanced Vacuum Solutions

Product Characteristics

High vacuum

Large pumping capacity

Self-manufactured and produced

Foryou vacuum pump customer cases

Product Parameters

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