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Busch

Cobra

COBRA NC dry screw vacuum pumps can accommodate a number of applications due to the different versions available. The cooling water can be injected direct or radiator cooled. COBRA NC dry screw vacuum pumps are also available as ATEX versions.                                                                

  • Ultimate pressure: 0.0075 - 0.75 Torr
  • Pumping Speed 60 Hz: 50 - 1471 ACFM
  • This product price is available on request only

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Need help? Call us:  1 503 639 0808

Product details

COBRA NC dry screw vacuum pumps are highly efficient for use in many industrial applications including process applications. These models represent many years of experience in dry vacuum technology and offer key design benefits.

  • COBRA NC screw vacuum pumps are high-performance and robust dry screw vacuum pumps for process technology, demanding applications with maximum flexibility and modularity for process changes. They are used wherever gases and vapors need to be pumped reliably and without contamination. Due to dry screw technology, the compression chamber is completely free from operating fluids. This design feature minimizes process contamination and maximizes uptime by reducing maintenance intervals compared to other technologies. In practice this means no environmental emissions and no cost arise for the purchase, replacement, and disposal of operating fluids. Maintenance tasks such as oil changes or filter replacement are no longer required or are reduced to a minimum.

    Reliable Pumping SpeedCOBRA NC screw pumps are designed to achieve a high stable pumping speed - even at normal working pressure range of 75 to less than 1 Torr.
    Operationally ReliableThe variable-pitch screw design and free gas discharge allow for a high degree of fluid and particle compatibility. Optimum corrosion resistance is ensured by even temperature distribution. The outstanding levels of efficiency reduce the thermal demand and increate the life cycle.
    Benefits
    • Advanced Screw Design
    • Efficient: low energy consumption, minimal maintenance, minimized operating costs
    • Robust: high vapor and particle tolerance, self-draining
    • High Performance: high pumping speed at all inlet pressures
    • Flexible: air cooling and various sealing and coasting configuration available.
    Accessories and Spare Parts

    Optimum Performance and Reliability

    • Nitrogen control panel
    • Gas-ballast valve for wet applications
    • Exhaust silencer
      • Standard motors meeting IEC or NEMA criteria, IE3
      • ATEX motors
      • Vacuum booster adapters
      • Seal gas system for harsh applications
      • Purge gas and liquid flushing system for vacuum pump cleaning and inertization
      • Air-cooled versions
      • Anti-corrosive coatings
      • Double and single mechanical seals for harsh or toxic processes
      • Material and vacuum pump test certificates
      • Busch vacuum pump oils and coolants

     

  • Technical DataCOBRA NC 0400 BCOBRA NC 0630 CCOBRA NC 1000 B
    Nominal pumping speed247 ACFM371 ACFM590 ACFM
    Ultimate pressure0.0075 Torr0.0075 Torr0.0075 Torr
    Nominal motor rating15 HP20 HP40 HP
    Nominal motor speed3600 RPM3600 RPM3600 RPM
    Noise level(ISO 2151)69 dB(A)75 dB(A)82 dB(A)
    Approximate weight1433 Lbs. 1645 Lbs.3050 Lbs.
    Dimensions(L x W x H)71 1/2 x 23 5/8 x 30 11/16 inches71 1/4 x 29 7/8 x 30 3/8 inches92 X 35 1/8 x 42 7/8 inches
    Gas inlet(ANSI) / outlet(NPT)3" / 3" ANSI/NPT3" / 3" ANSI/NPT5" / 5" ANSI/NPT

     

    Technical DataCOBRA NC 0100 BCOBRA NC 0200 BCOBRA NC 0300 B
    Pumping speed82 ACFM160 ACFM225 ACFM
    Ultimate pressure0.0075 Torr0.0075 Torr0.0075 Torr
    Nominal motor rating5 HP10 HP15 HP
    Nominal motor speed3600 RPM3600 RPM3600 RPM
    Noise level(ISO 2151)74 dB(A)76 dB(A)77 dB(A)
    Approximate weight730 Lbs.908 Lbs.1160 Lbs.
    Dimensions(L x W x H)53 7/8 x 24 1/4 x 26 8/8 inches60 3/4 x 26 x 26 5/8 inches65 1/2 x 28 x 26 5/8  inches
    Gas inlet / outlet 1 1/2" / 1 1/4" NPT2" / 2" NPT2" / 2" NPT

     

    Technical DataCOBRA NC 2500 B
    Max. pumping speed1471 ACFM
    Ultimate pressure0.75 Torr
    Nominal motor rating100 HP
    Nominal motor speed3600 RPM
    Noise level(ISO 2151)84 dB(A)
    Approximate weight4400 Lbs.
    Dimensions(L x W x H)94 7/16 x 64 1/2 x 54 3/8 inches
    Gas inlet / outlet 6" / 4" ANSI/NPT

     

  • Brochure

Description

COBRA NC screw vacuum pumps are high-performance and robust dry screw vacuum pumps for process technology, demanding applications with maximum flexibility and modularity for process changes. They are used wherever gases and vapors need to be pumped reliably and without contamination. Due to dry screw technology, the compression chamber is completely free from operating fluids. This design feature minimizes process contamination and maximizes uptime by reducing maintenance intervals compared to other technologies. In practice this means no environmental emissions and no cost arise for the purchase, replacement, and disposal of operating fluids. Maintenance tasks such as oil changes or filter replacement are no longer required or are reduced to a minimum.

Reliable Pumping SpeedCOBRA NC screw pumps are designed to achieve a high stable pumping speed - even at normal working pressure range of 75 to less than 1 Torr.
Operationally ReliableThe variable-pitch screw design and free gas discharge allow for a high degree of fluid and particle compatibility. Optimum corrosion resistance is ensured by even temperature distribution. The outstanding levels of efficiency reduce the thermal demand and increate the life cycle.
Benefits
  • Advanced Screw Design
  • Efficient: low energy consumption, minimal maintenance, minimized operating costs
  • Robust: high vapor and particle tolerance, self-draining
  • High Performance: high pumping speed at all inlet pressures
  • Flexible: air cooling and various sealing and coasting configuration available.
Accessories and Spare Parts

Optimum Performance and Reliability

  • Nitrogen control panel
  • Gas-ballast valve for wet applications
  • Exhaust silencer
    • Standard motors meeting IEC or NEMA criteria, IE3
    • ATEX motors
    • Vacuum booster adapters
    • Seal gas system for harsh applications
    • Purge gas and liquid flushing system for vacuum pump cleaning and inertization
    • Air-cooled versions
    • Anti-corrosive coatings
    • Double and single mechanical seals for harsh or toxic processes
    • Material and vacuum pump test certificates
    • Busch vacuum pump oils and coolants

 

Specifications
Technical DataCOBRA NC 0400 BCOBRA NC 0630 CCOBRA NC 1000 B
Nominal pumping speed247 ACFM371 ACFM590 ACFM
Ultimate pressure0.0075 Torr0.0075 Torr0.0075 Torr
Nominal motor rating15 HP20 HP40 HP
Nominal motor speed3600 RPM3600 RPM3600 RPM
Noise level(ISO 2151)69 dB(A)75 dB(A)82 dB(A)
Approximate weight1433 Lbs. 1645 Lbs.3050 Lbs.
Dimensions(L x W x H)71 1/2 x 23 5/8 x 30 11/16 inches71 1/4 x 29 7/8 x 30 3/8 inches92 X 35 1/8 x 42 7/8 inches
Gas inlet(ANSI) / outlet(NPT)3" / 3" ANSI/NPT3" / 3" ANSI/NPT5" / 5" ANSI/NPT

 

Technical DataCOBRA NC 0100 BCOBRA NC 0200 BCOBRA NC 0300 B
Pumping speed82 ACFM160 ACFM225 ACFM
Ultimate pressure0.0075 Torr0.0075 Torr0.0075 Torr
Nominal motor rating5 HP10 HP15 HP
Nominal motor speed3600 RPM3600 RPM3600 RPM
Noise level(ISO 2151)74 dB(A)76 dB(A)77 dB(A)
Approximate weight730 Lbs.908 Lbs.1160 Lbs.
Dimensions(L x W x H)53 7/8 x 24 1/4 x 26 8/8 inches60 3/4 x 26 x 26 5/8 inches65 1/2 x 28 x 26 5/8  inches
Gas inlet / outlet 1 1/2" / 1 1/4" NPT2" / 2" NPT2" / 2" NPT

 

Technical DataCOBRA NC 2500 B
Max. pumping speed1471 ACFM
Ultimate pressure0.75 Torr
Nominal motor rating100 HP
Nominal motor speed3600 RPM
Noise level(ISO 2151)84 dB(A)
Approximate weight4400 Lbs.
Dimensions(L x W x H)94 7/16 x 64 1/2 x 54 3/8 inches
Gas inlet / outlet 6" / 4" ANSI/NPT

 

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Brochure

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