Related Manuals for Atlas Copco GLS 250
Summary of Contents for Atlas Copco GLS 250
- Page 1 Atlas Copco Oil-sealed rotary piston pumps GLS 250, GLS 500 Instruction Book 6996 0222 40 Issue A...
- Page 2 EC DECLARATION OF CONFORMITY We, Atlas Copco Airpower n.v., declare under our sole responsibility, that the product Machine name: VACUUM PUMP Machine type: GLS250, GLS500 Serial number: This declaration covers all product serial numbers from the date this Declaration was signed onwards.
- Page 3 Atlas Copco Oil-sealed rotary piston pumps GLS 250/GLS 500 Instruction book Original instructions Copyright notice Any unauthorized use or copying of the contents or any part thereof is prohibited. This applies in particular to trademarks, model denominations, part numbers and drawings.
-
Page 4: Table Of Contents
Instruction Book Table of Contents Introduction ........................6 Scope ..........................6 Description ........................7 Technical data ......................14 Operating and storage conditions .................14 Pump specifications ......................14 Materials in contact with process gases ...............15 Electrical data .......................15 Installation ........................18 Safety ...........................18 System design considerations ..................19 Unpack and inspect ......................19 Locate the pump ......................20 Inlet piping ........................20... - Page 5 Instruction Book Operating notes ......................32 Maintenance ........................33 Safety information ......................33 Leak detection ......................33 Maintenance plan ......................34 Oil change ........................35 Oil level check .......................35 Valve deck maintenance ....................36 Belt maintenance ......................36 Drive belt tension ......................37 Gas ballast check valve replacement ................37 5.10 Fitment or replacement of the motor (GLS 500 models only) ........38 5.11...
- Page 6 Instruction Book Illustrations Theory of operation ......................8 GLS 250 pump general arrangement ................10 GLS 500 pump general arrangement ................11 GLS 250 pump dimensions ..................16 GLS 500 pump dimensions ..................17 Inlet piping configurations .....................22 Exhaust piping ......................24 Electrical schematic ......................26 Gas ballast setting ......................31 Typical vacuum system piping ..................34...
- Page 7 Instruction Book Associated Publications Publication title Publication number Vacuum Pump and Vacuum System Safety................6996 0222 10 V Lube F SDS...........................0017 5202 31 6996 0222 40 Issue A...
- Page 8 Instruction Book 6996 0222 40 Issue A...
-
Page 9: Introduction
Introduction Scope This manual provides installation, operation and maintenance instructions for GLS 250 and GLS 500 pumps (referenced as ‘GLS pump’ throughout the remainder of the manual). The GLS pump must be used as specified in this manual. Read this manual before installing and operating the pump. -
Page 10: Description
Instruction Book WARNING use protective equipment. WARNING moving parts. WARNING do not block the pump exhaust. Description The GLS pumps are self-contained, rotary, oil sealed piston type units. An eccentric mounted on the drive shaft drives the piston. Two free-oscillating floating hinge bars in the pump housing guide the piston slide. -
Page 11: Theory Of Operation
Instruction Book Figure 1 – Theory of operation When the pump is in operation, lubrication of the internal parts is completely automatic. Oil is forced by atmospheric pressure from the reservoir through internal oil passages to the shaft bearings. The oil is then fed into the pump to provide the necessary piston-to-cylinder oil seal. The oil in the pumping chamber is forced out through the exhaust valves with the compressed air and returns to the reservoir. - Page 12 Instruction Book 1.2.2 Water system WARNING Cooling lines must be installed as to not create a trip hazard which can result in injury to personnel. A cooling water supply rated at 30 °C (85 °F) and 5.7 litres per minute (1.5 GPM) for the GLS 250, and 7.6 litres per minute (2 GPM) for the GLS 500 maximum is required for efficient pump performance.
-
Page 13: Gls 250 Pump General Arrangement
Instruction Book Figure 2 – GLS 250 pump general arrangement 6996 0222 40 Issue A... -
Page 14: Gls 500 Pump General Arrangement
Instruction Book Figure 3 – GLS 500 pump general arrangement 6996 0222 40 Issue A... - Page 15 Instruction Book Reference Designation Reference Designation Motor lift eye-bolt (12) Oil fill port/pressure relief System lift eye-bolt (13) Oil temperature sensor port Reservoir cover (14) Oil temperature heater port Oil level sight glass (15) Oil drain valve Oil flow indicator (16) Gas ballast adjustment Motor...
- Page 16 Instruction Book 1.2.6 Vacuum access ports CAUTION When connecting a gauge to one of the ports, it is necessary to provide a 90° elbow and a minimum of 305 mm (12 inches) of vertical pipe to the gauge sensor to reduce the chance of contaminating the gauge with pump lubricants.
-
Page 17: Technical Data
Technical specifications for GLS pumps are provided in Table 2. Pump dimensions are shown in Figures and 5. Table 2 – Pump technical specifications Specification Unit GLS 250 GLS 500 Ultimate vacuum mbar(a) < 3.3 x 10 mbar(a) < 3.3 x 10 mbar(a) microns Hg <... -
Page 18: Materials In Contact With Process Gases
Instruction Book Table 2 – Pump technical specifications (continued) Specification Unit GLS 250 GLS 500 Weight 1875 Shipping 1075 1975 Height 1171 1395 inch Floor space 667 x 610 1022 x 651 inch 026-1/4 x 24 40-1/4 x 25-5/8 Cooling water consumption... -
Page 19: Gls 250 Pump Dimensions
Instruction Book Figure 4 – GLS 250 pump dimensions Table 3 – Motor specifications, IEC motors (CE pumps) Specification GLS 250 GLS 500 Enclosure IP55 IP55 Ambient temperature 40 °C (104 °F) 40 °C (104 °F) Frame Insulation class Electrical supply... -
Page 20: Gls 500 Pump Dimensions
Instruction Book Figure 5 – GLS 500 pump dimensions Table 4 – Motor specifications, NEMA motors Specification GLS 250 GLS 500 Enclosure TEFC TEFC Ambient temperature 40 °C (104 °F) 40 °C (104 °F) Frame 213T 215T Insulation class Electrical supply... -
Page 21: Installation
Consult Atlas Copco for specific applications assistance prior to operating the pump for hazardous applications. Ensure that the GLS pump is suitable for the application. Refer to the Atlas Copco guidelines on vacuum pump and vacuum system safety (see the associated publications at the end of the Contents list at the front of this manual). -
Page 22: System Design Considerations
Instruction Book Installation of the GLS pump must be performed by a suitably trained and supervised technician. Obey the safety instructions listed below when the pump is installed, especially when connecting the pump into an existing system. Details of specific safety precautions are provided at the appropriate point in the instructions. -
Page 23: Locate The Pump
Instruction Book Remove all packing materials, remove the pump from its packing box, remove the protective covers from the inlet and exhaust ports and inspect the pump. If the pump is damaged, notify the supplier and carrier in writing within three days; state the item number of the pump together with the order number and supplier's invoice number. - Page 24 Instruction Book All pipe lines should be as short as possible and be no smaller than the inlet to the pump. If long lines can not be avoided, increase the pipe diameter by 50 % or more over the pump inlet diameter.
-
Page 25: Inlet Piping Configurations
Instruction Book Figure 6 – Inlet piping configurations Reference Designation Reference Designation Pump inlet located below GLS pump system inlet Close/long radius elbow Pump inlet located above or Flexible connector level with system inlet In-line filter Vacuum break valve System 6996 0222 40 Issue A... -
Page 26: Exhaust Piping
The pump must not be operated unless it is installed in an appropriate vacuum system. WARNING Exhaust filters fitted to GLS 250 and GLS 500 pumps must be drained to prevent hazardous back pressure from developing. Increased back pressure can result in damage to the pump and injury to people. -
Page 27: Exhaust Piping
For those GLS 250 and GLS 500 pumps that do not use an exhaust filter, it is recommended that the exhaust be piped horizontally a short distance and tied into a vertical exhaust pipe. The lower... -
Page 28: Electrical Connections
Instruction Book Electrical connections WARNING Install electrical cables while ensuring not to create a trip hazard that could result in injury to personnel. WARNING Installation of the electrical connections should be performed by a competent technician familiar with vacuum systems, pumps and controls. -
Page 29: Electrical Schematic
Instruction Book Figure 8 – Electrical schematic Reference Designation Reference Designation M Aux In-line filter Fuse Overload Motor contactor Solenoid valve 6996 0222 40 Issue A... -
Page 30: Cooling
Special operating conditions may require the use of special oils. Consult Atlas Copco for specific recommendations when oils other than regular hydrocarbon oils are being used. - Page 31 Starting the GLS pump when the oil temperature is below 12 °C (54 °F) can result in motor over-load. The GLS pump is shipped with an initial charge of oil; 15 litres (4.0 gallons) for the GLS 250 and 45 litres (12 gallons) for the GLS 500. Before connecting the suction manifold, slowly rotate the pump through two (2) revolutions.
-
Page 32: Operation
Instruction Book Operation Pre-start check CAUTION If the oil flow paddle wheel does not rotate, stop the pump immediately. Check the operation of the solenoid. If the solenoid is operating correctly, check the oil lines for blockage. NOTE Momentarily jog the pump for at least two revolutions. Jog the motor momentarily while observing pump rotation. -
Page 33: Gas Ballast Operation
Switch on inert gas purge to remove air from the pump and exhaust pipeline before the process starts. NOTE Atlas Copco recommends obtaining and reading the Vacuum Pump and Vacuum System Safety manual available from Atlas Copco or the supplier. 6996 0222 40 Issue A... -
Page 34: Pump Stop
If desired, a solenoid valve attached to the gas ballast inlet and electrically connected to the motor leads can be used to turn off the gas ballast automatically on pump shutdown. Contact Atlas Copco for additional information. Figure 9 – Gas ballast setting When a pressurized gas is used to ballast the pump, the pressure must be reduced to ... -
Page 35: Operating Notes
This is not an indication of trouble. The volume of oil mist will decrease as the pressure in the system decreases. NOTE Atlas Copco offers a closed type oil mist separator that will eliminate exhaust oil smog but still requires exhausting to outside. Contact an Atlas Copco representative for information. -
Page 36: Maintenance
Instruction Book Maintenance Safety information WARNING Obey the safety instructions given below and take note of appropriate precautions. If not, injury to people and damage to equipment can occur. Ensure that maintenance is performed by a suitably trained and supervised technician. ... -
Page 37: Maintenance Plan
Instruction Book Maintenance plan A typical maintenance plan for the GLS pump is provided in Table Figure 10 – Typical vacuum system piping Reference Designation Reference Designation Vacuum chamber Optional foreline valve connection location Roughing valve Optional hold pump connection location Roughing line Gauge port... -
Page 38: Oil Change
Instruction Book Table 5 – Maintenance plan (continued) Operation Frequency Inspect valve decks 6 months Inspect pulleys and belts 6 months Inspect gas ballast valve 6 months Inspect bearing condition 12 months Clean the motor and drive 12 months Inspect taper lock bushings on pulleys After break in and 12 months Oil change WARNING... -
Page 39: Valve Deck Maintenance
Instruction Book NOTE When pumping gases that contain water vapour, it may be necessary to remove the water that condenses in the pump reservoir sump. Stop the pump and wait at least 1/2 hour for the oil and water to separate. Open the oil drain valve and drain water; close the valve when oil flow starts. -
Page 40: Drive Belt Tension
Table Table 6 – Belt tension Pump Force Deflection Pounds Inches GLS 250 13.3 - 22.2 3 - 5 11.0 7/16 GLS 500 22.2 - 31.2 5 - 7 13.0... -
Page 41: Fitment Or Replacement Of The Motor (Gls 500 Models Only)
Instruction Book 5.10 Fitment or replacement of the motor (GLS 500 models only) WARNING A new safety review may be required following fitment of any motor. Particular attention should be made to the effectiveness of the drive guard to restrict finger access to the motor shaft and all other rotating parts. -
Page 42: Collar Bolt Positions And Motor Frame Sizes
Instruction Book Figure 11 – Collar bolt positions and motor frame sizes 6996 0222 40 Issue A... -
Page 43: Fault Finding
A list of fault conditions and possible causes is provided in Table 8. If unable to rectify the fault using the table, call your nearest Atlas Copco Customer Center for help. Table 8 – Fault finding guide Symptom Probable Cause... - Page 44 Instruction Book Table 8 – Fault finding guide (continued) Symptom Probable Cause Recommended Solution Excessive Pump Noise Pump knocking abnormally. Knocking is normal at blank- off. Check oil level and oil solenoid valve for proper operation. Broken parts or foreign material in the pump.
- Page 45 Instruction Book Table 8 – Fault finding guide (continued) Symptom Probable Cause Recommended Solution Pump does not turn when V-belts too loose. Tighten V-belts (see motor starts. Section 5.8). Cylinder flooded with Turn pump over by hand to excessive oil due to defective remove excess oil.
-
Page 46: Storage And Disposal
Instruction Book Storage and disposal Storage CAUTION Observe the storage temperature limits stated in Section 2. Storage below -30 °C (-22 °F) will permanently damage the pump seals. Use the following procedure to store the pump: Purge the vacuum system and the pump with dry nitrogen and disconnect the pump from ... -
Page 47: Spares And Accessories
For more information about service options, contact your local Atlas Copco Customer Centre. Spares Refer to the corresponding Atlas Copco parts list. Accessories The following is a list of accessories that can be purchased by contacting Atlas Copco. Table 9 – Accessories Accessories Item number... - Page 48 Instruction Book 6996 0222 40 Issue A...
- Page 49 This page has been intentionally left blank.
- Page 50 We make performance stand the test of time. This is what we call - Sustainable Productivity. Atlas Copco AB (publ) SE-105 23 Stockholm, Sweden Phone: +46 8 743 80 00 Reg. no: 556014-2720 www.atlascopco.com...
Need help?
Do you have a question about the GLS 250 and is the answer not in the manual?
Questions and answers