VBPD Series Bellows-Sealed Rotary Feedthroughs

Our VBPD series feedthroughs are equipped with a bellows-sealed, mechanically-coupled shaft in a variety of flange sizes and vacuum side length options. They are capable of full 360º rotation and can be operated manually or optionally by 2 phase stepper motor.

Key Features


  • Flange sizes from DN16CF-DN40CF as standard (special versions for DN50CF and DN63CF have been previously manufactured
  • Manually driven, optionally with 2 phase stepper motor or pneumatic actuator (certain models only)
  • For stepper motor versions we offer 2 types of stepper motor, NEMA17 or NEMA 23. NEMA17 is a cheaper, more compact and lower maximum torque solution than NEMA23.
  • Motor options with handwheel at the rear of the motor for manual operation
  • Option for limit (position) switches, mechanical rotational limitation on PD25 & PD40 models (+/-180º). Please ask!
  • Bakeable to 230ºC (motor must be removed for bakeout for the motorised version, manual version can be baked as-is)
  • Pressure range 1 bar to 10-11 mbar
  • Flanges from 316LN, tube and bellows from 316L stainless steel
  • If you require a different shaft length, shaft end modification different motor or different flange, please ask us.
Part No.Flange sizeShaft length in vacuum (mm)Shaft diameter (mm)Motor typeMax. transferrable torque (Nm)Angular rangeAngular resolutionMax. Rotation Speed (U/min)External length (mm)External diameter (mm)Weight (kg)
VBPD16-50DN16CF506None/Manual1.50-360º1º50087470.56
VBPD16-50+
VBPD16-100DN16CF1006None/Manual1.50-360º1º50087470.57
VBPD16-100+
VBPD16-50S2DN16CF5062 Phase PKP 268 MD 28B (Oriental) NEMA 231.50-360º0.01º500189561.7
VBPD16-50S2+
VBPD16-100S2DN16CF10062 Phase PKP 268 MD 28B (Oriental) NEMA 231.50-360º0.01º500189561.7
VBPD16-100S2+
VBPDM16-50S2DN16CF5062 Phase PKP 244 MD 15B (Oriental) NEMA 171.50-360º0.01º500147540.86
VBPDM16-50S2+
VBPDM16-100S2DN16CF10062 Phase PKP 244 MD 15B (Oriental) NEMA 171.50-360º0.01º500147540.87
VBPDM16-100S2+
VBPD16-50PDN16CF506Pneumatic0.5+/-90º1ºN/A146580.75
VBPD16-50P+
VBPD16-100PDN16CF1006Pneumatic0.5+/-90º1ºN/A146580.80
VBPD16-100P+
VBPD25-50DN25CF5010None/Manual100-360º1º50097600.66
VBPD25-50+
VBPD25-100DN25CF10010None/Manual100-360º1º50097600.67
VBPD25-100+
VBPD25-50S2DN25CF50102 Phase PKP 268 MD 28B (Oriental) NEMA 23100-360º0.01º50097611.8
VBPD25-50S2+
VBPD25-100S2DN25CF100102 Phase PKP 268 MD 28B (Oriental) NEMA 23100-360º0.01º50097611.8
VBPD25-100S2+
VBPDM25-50-S2DN25CF5010Phasen Motor PKP 244 MD 15B-L (Oriental) NEMA 17100-360º0.01º5001.0
VBPDM25-50-S2+
VBPDM25-100S2DN25CF10010Phasen Motor PKP 244 MD 15B-L (Oriental) NEMA 17100-360º0.01º5001.0
VBPDM25-100S2+
VBPD40-75DN40CF7510None/Manual120-360º0.2º200102751.3
VBPD40-75+
VBPD40-100DN40CF10010None/Manual120-360º0.2º200102751.3
VBPD40-100+
VBPD40-125DN40CF12510None/Manual120-360º0.2º200102751.35
VBPD40-125+
VBPD40-150DN40CF15010None/Manual120-360º0.2º200102751.4
VBPD40-150+
VBPD40-75S2DN40CF75102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º2002241222.6
VBPD40-75S2+
VBPD40-100S2DN40CF100102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º2002241222.6
VBPD40-100S2+
VBPD40-125S2DN40CF125102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º2002241222.65
VBPD40-125S2+
VBPD40-150S2DN40CF150102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º2002241222.7
VBPD40-150S2+
VBPDM40-75S2DN40CF75102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º2002241221.8
VBPDM40-75S2+
VBPDM40-100S2DN40CF100102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º2002241221.8
VBPDM40-100S2+
VBPDM40-125S2DN40CF125102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º2001.85
VBPDM40-125S2+
VBPDM40-150S2DN40CF150102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º2001.9
VBPDM40-150S2+
VBPD50-75DN50CF7510None/Manual120-360º0.2º200
VBPD50-75+
VBPD50-100DN50CF10010None/Manual120-360º0.2º200
VBPD50-100+
VBPD50-125DN50CF12510None/Manual120-360º0.2º200
VBPD50-125+
VBPD50-150DN50CF15010None/Manual120-360º0.2º200
VBPD50-150+
VBPD50-75S2DN50CF75102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º200
VBPD50-75S2+
VBPD50-100S2DN50CF100102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º200
VBPD50-100S2+
VBPD50-125S2DN50CF125102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º200
VBPD50-125S2+
VBPD50-150S2DN50CF150102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º200
VBPD50-150S2+
VBPDM50-75S2DN50CF75102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º200
VBPDM50-75S2+
VBPDM50-100S2DN50CF100102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º200
VBPDM50-100S2+
VBPDM50-125S2DN50CF125102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º200
VBPDM50-125S2+
VBPDM50-150S2DN50CF150102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º200
VBPDM50-150S2+
VBPD63-75DN63CF7510None/Manual120-360º0.2º200
VBPD63-75+
VBPD63-100DN63CF10010None/Manual120-360º0.2º200
VBPD63-100+
VBPD63-125DN63CF12510None/Manual120-360º0.2º200
VBPD63-125+
VBPD63-150DN63CF15010None/Manual120-360º0.2º200
VBPD63-150+
VBPD63-75S2DN63CF75102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º200
VBPD63-75S2+
VBPD63-100S2DN63CF100102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º200
VBPD63-100S2+
VBPD63-125S2DN63CF125102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º200
VBPD63-125S2+
VBPD63-150S2DN63CF150102 Phase PKP 268 MD 28B (Oriental) NEMA 23120-360º0.01º200
VBPD63-150S2+
VBPDM63-75S2DN63CF75102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º200
VBPDM63-75S2+
VBPDM63-100S2DN63CF100102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º200
VBPDM63-100S2+
VBPDM63-125S2DN63CF125102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º200
VBPDM63-125S2+
VBPDM63-150S2DN63CF150102 Phase PKP 244 MD 15B (Oriental) NEMA 17120-360º0.01º200
VBPDM63-150S2+

VBPD16-50

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VBPD16-100

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VBPD16-50S2

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VBPD16-100S2

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VBPDM16-50S2

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VBPDM16-100S2

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VBPD16-50P

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VBPD16-100P

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VBPD25-50

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VBPD25-100

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VBPD25-50S2

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VBPD25-100S2

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VBPDM25-50-S2

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VBPDM25-100S2

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VBPD40-75

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VBPD40-100

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VBPD40-125

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VBPD40-150

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VBPD40-75S2

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VBPD40-100S2

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VBPD40-125S2

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VBPD40-150S2

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VBPDM40-75S2

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VBPDM40-100S2

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VBPDM40-125S2

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VBPDM40-150S2

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VBPD50-75

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VBPD50-100

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VBPD50-125

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VBPD50-150

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VBPD50-75S2

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VBPD50-100S2

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VBPD50-125S2

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VBPD50-150S2

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VBPDM50-75S2

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VBPDM50-100S2

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VBPDM50-125S2

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VBPDM50-150S2

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VBPD63-75

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VBPD63-100

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VBPD63-125

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VBPD63-150

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VBPD63-75S2

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VBPD63-100S2

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VBPD63-125S2

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VBPD63-150S2

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VBPDM63-75S2

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VBPDM63-100S2

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VBPDM63-125S2

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VBPDM63-150S2

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