WAU Roots pump

NegotiableUpdate on 05/06

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

WAU Roots pump technology advantages: high-efficiency and energy-saving. The air-cooled design does not require external cooling water, and energy consumption is 40% lower than traditional water-cooled pumps. The variable frequency speed regulation compatibility (such as WAU 251 accelerating to 4200rpm) improves the adaptability of working conditions by 50%. The canned motor isolates lubricating oil pollution and meets the requirements of high-purity processes such as semiconductor and photovoltaic coating. The fluororubber seal is resistant to oxygen-containing/corrosive gases (such as etching gases in CVD processes). The modular maintenance of the gearbox and pump chamber is designed to isolate lubricating oil from medium pollution and has a replacement cycle

Product Details

WAU Roots pumpCore models and technical parameters

Model number	Extraction speed (m ³/h)	Ultimate pressure (mbar)	Power (kW)	Structural characteristics	Adapt to the front-end pump
‌ WAU 1001 ‌	1000	4×10⁻²	4.0	Horizontal/vertical options available, with a shaft seal box oil volume of 1.3L	SV series oil sealed pump 8
‌ WAU 2001 ‌	2050	4×10⁻²	7.5	Equipped with bypass valve, DN160 flange, noise ≤ 80dB	D65B oil seal pump 59
‌ WAU 251 ‌	253	<8×10⁻²	1.1	Variable frequency compatibility (20-100Hz), fluororubber seal	Small and medium-sized rotary vane pump 7
‌ WAU 501 ‌	505	4×10⁻²	2.2	Three blade rotor noise reduction (67dB), weighing only 136kg	SOGEVAC series 6

Key design: The entire series comes standard with a bypass valve system, supporting atmospheric pressure start-up and reducing evacuation time by 30%

WAU Roots pumpTechnological advantages

1. Efficient and energy-saving

The air-cooled design does not require external cooling water and consumes 40% less energy than traditional water-cooled pumps

Variable frequency speed regulation compatibility (such as WAU 251 accelerating to 4200rpm), with a 50% improvement in adaptability to working conditions

2. Oil free seal

Canned Motor isolates lubricating oil pollution and meets high-purity process requirements such as semiconductor and photovoltaic coating

Fluororubber seals are resistant to oxygen-containing/corrosive gases (such as etching gases in CVD processes)

3. Modular maintenance

Gearbox and pump chamber isolation design, lubricating oil is not contaminated by the medium, and the replacement cycle is extended to 4000 hours

Vertical/horizontal quick switching, saving equipment layout space

Maintenance and Fault Prevention

1. Mandatory maintenance items

Replace bearings and mechanical seals every 2000 hours of operation, using original LVO 100/210 lubricating oil

5% acid-base solution is required to clean the pump chamber, and particle abrasives are prohibited

2. Operation prohibited

Continuous pressure difference greater than 100mbar will cause rotor overheating and deformation (requiring interlocking pressure sensor)

Bypass valve opening time ≤ 3 minutes to avoid motor overload

3. Upgrade Options

Installing magnetic levitation bearings: mechanical losses reduced by 40%, maintenance free cycle exceeded 8000 hours