COBRA DS 0080 / 0160 G
28Pages

Vacuum Pumps and Systems Screw Vacuum Pumps COBRA DS 0080 - 2000 G C€ Busch Manufacturing Korea, Ltd. 189-51, Soicheon-ro, Majang-myun Icheon-si, Gyunggi-do, 467-813 Republic of Korea 0870772712 / 181024 / Original instructions / Subject to change without notice

Table of contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Product description . . . . . . . . . . . . . . . . . . . . . . . . . 9 Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Operating principle . . . . . . . . . . . . . . . . . . . . . . . . 9 COMBI . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Gas flow checks . . . . . . . . . . . . . . . . . . . . . . . 10 Oil circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Nitrogen system. . . . . ....

COBRA DS 0080/ 0160 IN Inlet OUT Discharge CAO Extracting ventilator RC LCD ES Emergency stop button (EMO) PRV Nitrogen pressure reducer EC Electrical connections EB Eye bolts PMR Unblocking for screw OSG1 Oil sight glass OFP Oil filler plug ODP Oil drain plug NC Nitrogen connections CWC Cooling water connections EV Expansion vessel CWR Cooling water regulating valve CWM Cooling water flow meter PSA Pressure sensor CLD Cooling liquid drain plug TV Thermostatic valve TS Temperature sensor DGR 1 Regulating valve, dilution gas (middle of cylinder) DGR 2 Regulating valve, dilution gas (end of...

COBRA DS 0700 G IN Inlet OUT Discharge CAO Extracting ventilator RC LCD ES Emergency stop button (EMO) PRV Nitrogen pressure reducer EC Electrical connections EB Eye bolts PMR Unblocking for screw OSG1 Oil sight glass (DP) OSG2 Oil sight glass (MB) OFP Oil filler plug ODP Oil drain plug NC Nitrogen connections CWC Cooling water connections CWR Cooling water regulating valve CWM Cooling water flow meter PS Pressure switch at MB inlet PSA Pressure sensor CLD Cooling liquid drain plug TV Thermostatic valve TS Temperature sensor DGR 1 Regulating valve, dilution gas (middle of cylinder) DGR 2...

COBRA DS 1000/ 2000 IN Inlet OUT Discharge CAO Extracting ventilator RC LCD ES Emergency stop button (EMO) PRV Nitrogen pressure reducer EC Electrical connections EB Eye bolts PMR Unblocking for screw OSG1 Oil sight glass (DP) OSG2 Oil sight glass (MB) OFP Oil filler plug ODP Oil drain plug NC Nitrogen connections CWC Cooling water connections CWR Cooling water regulating valve CWM Cooling water flow meter PS Pressure switch at MB inlet PSA Pressure sensor CLD Cooling liquid drain plug TV Thermostatic valve TS Temperature sensor DGR 1 Regulating valve, dilution gas (middle of cylinder) DGR...

DGF Nitrogen flow meter, dilution gas PGR Nitrogen pressure reducer PS Inlet pressure switch OSG 3 PRV Outlet pressure regulator OSG 1 Oil level indicator (DP) OSG 2 Oil level indicator (DP) OSG 3 Oil level indicator (MB) OSG 4 Oil level indicator (MB) MPS 1 Power sensor (DP) OSG 2 MPS 2 Power sensor (MB) TV Thermostatic valve CWR 2 Cooling water valve for motors/ drive CWR 1 Cooling water valve for rear bearing (option) DGR 1 Regulating valve, dilution gas Cooling water outlet DGR 2 Regulating valve, dilution gas Cooling water inlet CWM Cooling water flow meter TS 2 Temperature sensor for...

Principle of DP vacuum pumps The COBRA NS screw vacuum pumps work by the principle of spiral pumps. Two parallel screws (8) rotate in opposite directions in the pump body. Entering gases are trapped between the flights of the screws and the pump body. The gases are conveyed by the rotation of the screws to the exhaust, where they are discharged. Principle of MB vacuum pumps The WY Roots vacuum pumps operate according to the approved principle of the Roots type machine. Operation is both simple and effective. Two lobe rotors (1) with identical profiles rotate in opposition directions within...

Safety information on the NS 0070 C pump Intended use DEFINITION: To rule out any misunderstanding, the term “handling” of the vacuum pump covers transport, storage, installation and operation of the pump as well as effects on operating states and troubleshooting on the vacuum pump. WARNING Hot surface Do not touch The vacuum pump is intended for industrial use. It may only be operated by qualified personnel. The different application possibilities and limit values for operation described in “Product description” and “Installation requirements” must be observed by the manufacturer of the...

Transport in unpacked state The vacuum pump is fastened to the pallet with fixing pins: u Unscrew the fastening nuts underneath the pallet. CAUTION Do not work, walk or stand under suspended loads. NOTE: VCI is the abbreviation for “volatile corrosion inhibitor”. The VCI molecule is an organic corrosion inhibitor in the vapour phase. Integrated in various carriers such as film, cardboard, paper, foam, liquid and powder, it protects the parts against corrosion as a result of its action in the vapour phase. However, VCI packaging can attack synthetic surfaces and surfaces of other elastomers....

— Approximate flow rate: 6 - 7 l/ min for the standard version (hot pump) — Approximate flow rate: 6 - 15 l/ min for other applications • Make sure that the cooling water is neutral and clean • Make sure that the cooling water outlet is unpressurised CAUTION When the intake lines have been connected, make sure that the system does not leak. Leakages of dangerous substances must be prevented! • Make sure that the nitrogen fulfills the following requirements: — Overpressure: 1,5 bar — Approximate flow rate: 0 - 75 l/ min • Make sure that the ambient conditions correspond to the protection...

Cooling water connection The cooling water is generally connected with a hose. The cooling water outlet must be unpressurised. Connection diameter: 3/8 NPT Nitrogen connection The nitrogen is connected with a pipe (leakproof against oxygen). Connection diameter: 1/4 NPT Electrical connection/ Checks • Make sure that the regulations of the Electromagnetic Compatibility Directive 2014/30/EU as well as standard EN norms, safety directives and especially local and national regulations are observed (this is the responsibility of the manufacturer of the system into which the vacuum pump is...