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Summary of Contents for Atlas Copco GVD 18
- Page 1 Atlas Copco Oil-sealed dual stage rotary vane vacuum pumps GVD 18 Instruction Book 6996 0220 30 Issue B...
- Page 2 EU DECLARATION OF CONFORMITY We, Atlas Copco Airpower n.v., declare under our sole responsibility, that the product Machine name VACUUM PUMP Machine type GVD0.7, GVD1.5, GVD3, GVD5, GVD8, GVD12, GVD18, GVD28 Serial number This declaration covers all product serial numbers from the date this Declaration was signed onwards.
- Page 3 Atlas Copco Oil-sealed dual stage rotary vane vacuum pumps GVD 18 Instruction book Original instructions Copyright notice Any unauthorised use or copying of the contents or any part thereof is prohibited. This applies in particular to trademarks, model denominations, part numbers and drawings.
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Page 4: Table Of Contents
Instruction Book Table of Contents Introduction ........................6 Scope and definitions ....................6 Description ........................8 Gas-ballast ........................8 Technical data ......................9 Operating and storage conditions .................. 9 Performance ........................ 10 Mechanical data ......................11 Lubrication data ......................11 Electrical data ...................... - Page 5 Instruction Book Operation ........................24 Gas-ballast control ....................... 24 Start-up ........................24 To achieve ultimate vacuum ..................25 To pump condensable vapours ................... 25 To decontaminate the oil ..................... 26 Unattended operation ....................26 Shut-down ........................26 Maintenance ....................... 28 Safety information ......................
- Page 6 Service ......................... 37 Spares ......................... 37 Accessories ......................... 38 Illustrations The GVD 18 pump ......................7 Dimensions (mm) ......................13 Motor voltage selection: single-phase motors, 110/200-240 V 50 Hz and 115-120/200-230 V 60 Hz ..........18 Electrical supply connection, three-phase motors: 200-220 V 50 Hz and 200-230 V 60 Hz ...............
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Page 7: Publication Number
Instruction Book Accessory item numbers ..................... 38 Associated publications Publication title Publication number Vacuum pump and vacuum system safety 6996 0222 10 TIGOL 48 0017 5202 45 6996 0220 30 Issue B... - Page 8 Instruction Book This page has been intentionally left blank. 6996 0220 30 Issue B...
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Page 9: Introduction
This manual provides installation, operation and maintenance instructions for the Atlas Copco GVD 18 rotary vacuum pumps. The pump must be used as specified in this manual. Read this manual before installing and operating the pump. Important safety information is highlighted as WARNING and CAUTION instructions;... -
Page 10: The Gvd 18 Pump
Instruction Book Figure 1 – The GVD 18 pump Reference Designation Reference Designation Oil filler Motor terminal box Outlet nozzle On/Off switch Gas-ballast control (10) Box section skids Gas-ballast inlet (11) Oil drain-plug (gravity drain) Centring-ring and O-ring (12) Oil sight-glass... -
Page 11: Description
The GVD pumps are direct drive, sliding vane pumps. The GVD 18 is a two-stage pump. The pump is oil-sealed and designed for reliable, long-term operation in both laboratory and industrial environments. The pump is a free-standing unit. The drive is provided through a flexible coupling by a single-phase or three-phase (four pole) motor. -
Page 12: Technical Data
Instruction Book Technical data Operating and storage conditions NOTE To comply with EN 61010 and CSA standards, the pump must be installed and used indoors and within the operating conditions specified in Table 1 below. Table 1 – Operating and storage conditions Parameter Data Ambient temperature range (operation) -
Page 13: Performance
2, measurements were taken using an untrapped total pressure capacitance diaphragm gauge on a header, as specified by Pneurop standards. Table 2 – Performance data Data Parameter GVD 18 Maximum displacement 50 Hz electrical supply 20.5 m 60 Hz electrical supply 25.0 m... -
Page 14: Mechanical Data
Table 4 – Lubrication data Recommended oil TIGOL 48 Maximum oil capacity GVD 18 1.05 litres To operate the pump when the ambient temperature is outside the range specified in Section 2.1 or to optimise pump performance when processing condensable vapours, a different oil may be required. -
Page 15: Electrical Data
Instruction Book Electrical data Refer to Table 5 and 6. The motor start-up current is drawn for less than one second, so slow-blow fuses must be used to prevent unnecessary fuse failure when the pump starts. Fuses should be to EN60269 Section 2.2. -
Page 16: Dimensional Data
Instruction Book Dimensional data Figure 2 – Dimensions (mm) 6996 0220 30 Issue B... -
Page 17: Installation
25%, there is a risk of fire or explosion in the oil-box of the pump. WARNING Do not use the GVD 18 pump to pump hazardous substances. WARNING Obey the safety instructions listed below and take note of appropriate precautions. -
Page 18: System Design
Section 6.1. Table 7 – Checklist of items Quantity Description Check ( GVD 18 rotary vacuum pump Fitting pack containing the following: DN25 ISO-KF centring-ring O-ring for centring-ring 6996 0220 30 Issue B... -
Page 19: Locate The Pump
Instruction Book Locate the pump WARNING Use suitable lifting equipment to move the pump. Failure to do so can result in injury to people or damage to the pump. Refer to Section 2.3 for the mass of the pump. The pump can be either free-standing on its box section skids, or be fixed by bolts through the four fixing holes in the box section skids, or be used with vibration isolators. -
Page 20: Motor Connection Details
Instruction Book 3.6.1 Introduction NOTE The pump will restart automatically when the electrical supply is restored after an interruption and when the pump cools after it has overheated. If the pump is not required to restart automatically, use electrical control equipment which must be reset manually. -
Page 21: Motor Voltage Selection: Single-Phase Motors, 110/200-240 V 50 Hz And 115-120/200-230 V 60 Hz
Instruction Book Figure 3 – Motor voltage selection: single-phase motors, 110/200-240 V 50 Hz and 115-120/200-230 V 60 Hz Reference Designation Reference Designation Top view of motor Terminal box cover Internal view of top of motor Electrical inlet socket ON/OFF switch On/Off switch Voltage selector switch Position 'I' (on) -
Page 22: Electrical Installation: Three-Phase Motors
If the pump is not required to restart automatically, use electrical control equipment which must be reset manually. Atlas Copco recommend that you connect the electrical supply to the motor through a starter or circuit breaker which has thermal over-current protection which can be adjusted to suit the full... -
Page 23: Connect The Pump Inlet
Instruction Book 6. Ensure that the gasket seal for the terminal box cover is correctly positioned, then refit the cover to the terminal-box and secure with the screws. 3.7.2 Check the direction of rotation CAUTION Ensure that the motor rotates in the correct direction. If it does not, the pump and the vacuum system can become pressurized when the pump is in operation. -
Page 24: Electrical Supply Connection, Three-Phase Motors: 200-220 V 50 Hz And 200-230 V 60 Hz
Instruction Book Figure 4 – Electrical supply connection, three-phase motors: 200-220 V 50 Hz and 200-230 V 60 Hz Figure 5 – Electrical supply connection, three-phase motors: 380-415 V 50 Hz and 460 V 60 Hz 6996 0220 30 Issue B... -
Page 25: Connect The Pump Outlet
0.5 bar gauge (1.5 bar absolute, 1.5 x 10 Pa) at full pump throughput. Atlas Copco recommend fitting an oil mist filter to the pump outlet in the following circumstances: When using the pump with the gas-ballast control open. -
Page 26: Leak Test The System
Instruction Book 3.11 Leak test the system Leak-test the system and seal any leaks found after installation of the pump to prevent leakage of substances out of the system and leakage of air into the system. 6996 0220 30 Issue B... -
Page 27: Operation
Turn the gas-ballast control by up to two turns anti-clockwise to introduce an additional oil-feed to the pump mechanism. Atlas Copco recommend doing this when pumping high throughputs of dry gases. Turn the gas-ballast control from two to six turns anti-clockwise to increase the gas-ballast from zero flow. -
Page 28: To Achieve Ultimate Vacuum
2.2, make sure that this is not due to the system design before you contact the supplier or Atlas Copco for advice. In particular, the vapour pressure of all materials used in the vacuum system (including pump oil, refer to below) must be much lower than the specified ultimate vacuum of the pump. -
Page 29: To Decontaminate The Oil
The pump is designed for unattended operation under the normal operating conditions specified Section 2.1. However, Atlas Copco recommend checking the pump at a regular interval of not more than 14 days; check the pump more frequently if pumping high volumes of gas or if operating the pump with the gas-ballast control open. - Page 30 Instruction Book 2. Close the vacuum system isolation-valve (if not already closed). 3. Close gas-ballast (that is, turn the gas-ballast control clockwise). 4. Switch off the electrical supply to the pump. 6996 0220 30 Issue B...
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Page 31: Maintenance
More frequent maintenance may be required if the pump is used to process corrosive or abrasive gases and vapours; in these circumstances, Atlas Copco recommend replacing the pump seals every year. If necessary, adjust the maintenance plan according to experience. -
Page 32: Check The Oil-Level
Instruction Book When carrying out maintenance on the pump, use Atlas Copco spares and maintenance kits; these contain all of the components necessary to complete maintenance operations successfully. The Item Numbers of the spares and kits are given in Section 7.3. -
Page 33: Replace The Oil
Instruction Book 2. If the oil-level is near to or below the MIN level mark, remove the oil filler-plug (1) and pour more oil into the reservoir until the oil reaches the MAX level mark. If the oil-level goes above the MAX mark, remove the oil drain-plug (11) and drain the excess oil from the pump. -
Page 34: Inspect And Clean The Inlet-Screen
Instruction Book Inspect and clean the inlet-screen Refer to Figure 1. Unscrew the inlet adaptor (1) and remove the O-ring (2), circlip (3) and inlet-screen (4). 2. Wash the screen in a suitable cleaning solution. Allow the screen to dry. 3. -
Page 35: Clean The Gas-Ballast Filter
Instruction Book Clean the gas-ballast filter NOTE The gas-ballast filter may have been removed to connect a gas supply or valve to the gas-ballast inlet. Refer to Figure 1. Remove the retainer circlip (3). 2. Remove the protective wire meshes (2) and filter elements (1). 3. -
Page 36: Clean The Motor Fan-Cover And Enclosure
Replace the run capacitor as described in the instructions supplied with the capacitor kit. Test the earth (ground) continuity and the insulation resistance of the pump-motor, in accordance with local regulations for periodic testing of electrical equipment. Atlas Copco recommend that: The earth (ground) continuity is less than 0.1 ... - Page 37 Instruction Book 5.11.2 The pump has failed to start The electrical supply fuse has failed. The motor is incorrectly wired. The operating voltage does not match that of the motor. The exhaust filter or exhaust line is blocked. ...
- Page 38 Instruction Book The oil is contaminated with solid particles. One of the pump blades is sticking. 5.11.5 The pump surface temperature is above 100°C The ambient temperature is too high. The cooling-air supply is insufficient or is too hot. ...
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Page 39: Storage And Disposal
Instruction Book Storage and disposal Storage CAUTION Observe the storage temperature limits stated in Section 2.1. Storage below these limits will permanently damage the pump seals. NOTE If storing a new pump in conditions of high humidity, remove the pump from its cardboard packaging box;... -
Page 40: Service, Spares And Accessories
Atlas Copco products, spares and accessories are available from Atlas Copco Customer Centres and a world-wide network of distributors. Order spare parts and accessories from the nearest Atlas Copco Customer Centre or distributor. When ordering, state for each part required: Model and Item Number of the equipment ... -
Page 41: Accessories
Instruction Book Accessories 7.4.1 Introduction A range of accessories is available for the GVD 18 pumps. The accessories are briefly described in the following sections. Refer to Table 10 for the Item Numbers of these accessories. Table 10 – Accessory item numbers... - Page 42 Instruction Book This page has been intentionally left blank. 6996 0220 30 Issue B...
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- Page 44 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...
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