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Zebra RH 0003 - 0021 B

The Zebra RH 0003 - 0021 B belongs to the Busch product family of proven Zebra rotary vane vacuum pumps. You will find more information on advantages, technology, accessories and spare parts, applications as well as a complete product overview on our Zebra RH series type page.

Series Type Page Zebra RH
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Get in contact or +91 (0)124 475 1300

Zebra – reliable medium vacuum for demanding applications in industry and research.

Zebra – reliable medium vacuum for demanding applications in industry and research.


Technical Specifications

Zebra RH 0003 - 0021 B

Rotary vane technology is synonymous with a robust, functional construction. Due to two-stage compression, an ultimate total pressure of 6.7 · 10-3 hPa (mbar) is achieved. While the oil mist separator ensures clean and oil-free exhaust air, the inlet filter protects the vacuum pump against dust and other solid particles. Furthermore, the gas-ballast valve, which is integrated as standard, allows condensable vapours to be pumped.


A nonreturn valve at the exhaust prevents oil from flowing back into the compression chamber after the vacuum pump is switched off. In addition to the four pump sizes from 3 to 21 m³/h outlined here, the Zebra series also includes models with higher pumping speeds from 24 to 95 m³/h.

Dimensional Drawing Zebra RH 0003 – 0021 B
Zebra RH 0003 – 0021 B

Pumping speed

Air at 20 °C. Tolerance: ± 10%

50 Hz 60 Hz
Pumping speed
Technical data RH 0003 B RH 0010 B RH 0015 B RH 0021 B
Nominal pumping speed m3/h 50 Hz 2.9 9.7 14.4 20.2
Pumping speed m3/h 50 Hz 2.4 8.1 12.0 16.9
Ultimate partial pressure hPa (mbar) 6.7 · 10-4 6.7 · 10-4 6.7 · 10-4 6.7 · 10-4
Ultimate total pressure (Gas-ballast valve closed) hPa (mbar) 6.7 · 10-3 6.7 · 10-3 6.7 · 10-3 6.7 · 10-3
Ultimate total pressure (Gas-ballast valve open) hPa (mbar) 6.7 · 10-2 6.7 · 10-2 6.7 · 10-2 6.7 · 10-2
Motor type Single-phase Three-phase Three-phase Three-phase
Nominal motor rating (Three-phase) kW 0.2 0.4 0.55 0.7
Nominal motor rating (Single-phase) kW 0.2 0.4 0.55 0.75-0.9
Oil VSD 026 VMA 055 VMA 055 VMA 055
Noise level (ISO 2151) with oil mist separator dB(A) 50 Hz ≤ 52 ≤ 49 / ≤ 52 ≤ 52 / ≤ 54 ≤ 59 / ≤ 59
Weight approx. (Three-phase) kg 16 26 29 34.5
Weight approx. (Single-phase) kg 16 29 31 42
Dimensions (L x W x H) (Three-phase) mm 427 x 150 x 227.5 485.5 x 170 x 240 513.5 x 170 x 240 536 x 181 x 269
Dimensions (L x W x H) (Single-phase) mm 427 x 150 x 227.5 487.5 x 170 x 249.5 515.5 x 170 x 249.5 585 x 182 x 271
Gas inlet ISO-KF 25 ISO-KF 25 ISO-KF 25 ISO-KF 25
Gas outlet (adapter*) G ¾" (ISO-KF 25) G 1" (ISO-KF 25) G 1" (ISO-KF 25) G 1" (ISO-KF 25)
* The adapter is part of the standard package.        

Downloads

Zebra RH 0003 - 0021 B

Want to know more?
Contact us directly (Busch India):
+91 (0)124 475 1300 Get in contact

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