Pfeiffer Vacuum OKTA 250 Operating Instructions Manual
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Summary of Contents for Pfeiffer Vacuum OKTA 250
- Page 1 OPERATING INSTRUCTIONS Translation of the Original OKTA 250 | 250 M | 500 | 500 M Roots pump...
- Page 2 Dear Customer, Thank you for choosing a Pfeiffer Vacuum product. Your new roots pump should support you in your individual application with full performance and without malfunctions. The name Pfeiffer Vacuum stands for high-quality vacuum technology, a comprehensive and complete range of top-quality products and first-class service.
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Page 3: Table Of Contents
Product usage limits Proper use Foreseeable improper use Personnel qualification 2.7.1 Ensuring personnel qualification 2.7.2 Personnel qualification for maintenance and repair 2.7.3 Advanced training with Pfeiffer Vacuum Product description Functional description Identifying product Product features Scope of delivery Transportation and Storage... - Page 4 Recycling and disposal General disposal information Dispose of Okta roots pumps Malfunctions Service solutions by Pfeiffer Vacuum Spare parts 12.1 Set of seals for version with RSSR 12.2 Set of seals for version with magnetic coupling 12.3 Maintenance kit for version with RSSR 12.4 Maintenance kit for version with magnetic coupling...
- Page 5 Tbl. 9: Conversion table: Pressure units Tbl. 10: Conversion table: Units for gas throughput Tbl. 11: Technical data Okta 250 Standard | M Tbl. 12: Technical data Okta 500 Standard | M Tbl. 13: Dimensions Okta 250 Standard | M Tbl.
- Page 6 Fig. 11: Replacing sealing oil for radial shaft seal rings Fig. 12: Overflow valve Fig. 13: Installation instructions gear rim coupling Fig. 14: Dimension diagram Okta 250 Standard | M Fig. 15: Dimension diagram Okta 500 Standard | M 6/54...
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Page 7: About This Manual
Keep the manual for future consultation. 1.1 Validity This operating instructions is a customer document of Pfeiffer Vacuum. The operating instructions de- scribe the functions of the named product and provide the most important information for the safe use of the device. The description is written in accordance with the valid directives. The information in this op- erating instructions refers to the product's current development status. -
Page 8: Conventions
About this manual 1.3 Conventions 1.3.1 Instructions in the text Usage instructions in the document follow a general structure that is complete in itself. The required ac- tion is indicated by an individual step or multi-part action steps. Individual action step A horizontal, solid triangle indicates the only step in an action. ►... -
Page 9: Abbreviations
About this manual Warning hot surface This sticker warns of injuries caused by high temperatures as a result of contact without protection during operation. Warning of magnetic field This sticker warns of injuries to people with pacemakers. Tbl. 1: Stickers on the product Fig. -
Page 10: Safety
Safety 2 Safety 2.1 General safety information The following 4 risk levels and 1 information level are taken into account in this document. DANGER Immediately pending danger Indicates an immediately pending danger that will result in death or serious injury if not observed. ►... - Page 11 Safety Risks during installation DANGER Danger to life from electric shock Touching exposed and voltage-bearing elements causes an electric shock. Improper connection of the mains supply leads to the risk of touchable live housing parts. There is a risk to life. ►...
- Page 12 Safety WARNING Risk of crushing on rotating parts when reaching into the open flange The pistons continue to run in the vacuum after switching off the motor, and can trap fingers and hands within their reach. ► Wait until the vacuum pump comes to a complete standstill. ►...
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Page 13: Safety Precautions
Safety WARNING Health hazard and environmental damage from toxic contaminated lubricant Toxic process media can cause lubricant contamination. When changing the lubricant, there is a health hazard due to contact with poisonous substances. Illegal disposal of toxic substances causes environmental damage. ►... -
Page 14: Product Usage Limits
► Adhere to the installation, commissioning, operating, and maintenance instructions. ► Use only accessory parts recommended by Pfeiffer Vacuum. 2.6 Foreseeable improper use Improper use of the product invalidates all warranty and liability claims. Improper use is any, even unin- tended, use, which is contrary to the product purpose;... -
Page 15: Personnel Qualification
2.7.2 Personnel qualification for maintenance and repair Advanced training courses Pfeiffer Vacuum offers advanced training courses to maintenance levels 2 and 3. Adequately trained individuals are: ● Maintenance level 1 ─ Customer (trained specialist) ●... -
Page 16: Advanced Training With Pfeiffer Vacuum
Safety 2.7.3 Advanced training with Pfeiffer Vacuum For optimal and trouble-free use of this product, Pfeiffer Vacuum offers a comprehensive range of courses and technical trainings. For more information, please contact Pfeiffer Vacuum technical training. 16/54... -
Page 17: Product Description
9 Drain screw, motor side Overflow valve 3.2 Identifying product To ensure for a clear identification of the product when communicating with Pfeiffer Vacuum, always keep all of the information on the rating plate to hand. The following information is shown on the rating plates: ●... -
Page 18: Product Features
Okta 250 290/350 DN 63 ISO-F DN 63 ISO-F 4 × G 3/8" 2 × G 3/8" Okta 250 M Okta 500 560/670 DN 100 ISO-F DN 100 ISO-F 4 × G 3/8" 2 × G 3/8" Okta 500 M... -
Page 19: Transportation And Storage
● Fill the gear and bearing chambers with lubricant only once the final installation posi- tion is reached. Preparations for transport Pfeiffer Vacuum recommends keeping the transport packaging and original protective cov- General information regarding safe transport 1. Observe weight specified on the rating plate. -
Page 20: Storing Vacuum Pump
Neither the suction chamber nor the pistons in the roots pump in the roots pump interior are provided with corrosion protection. Storage Pfeiffer Vacuum recommends storing the products in their original transport packaging. Procedure 1. Vacuum-seal both connection flanges. 2. Store the roots pump only in dry, dust-free rooms, within the specified ambient conditions. -
Page 21: Installation
Pfeiffer Vacuum are excluded. ► Use only lubricants approved by Pfeiffer Vacuum. ► Use alternative, application-specific lubricants only following consultation with Pfeiffer Vacuum. The type of lubricant specified for the gear and bearing chambers, and the fill quantity for the entire roots pump are shown on the rating plate. -
Page 22: Filling With Sealing Oil
Installation Required tools ● Open-end wrench, 17 mm WAF ● Calibrated torque wrench (tightening factor ≤ 2.5) max. min. Fig. 4: Filling up lubricant 1 Lubricant filling plug O-ring 2 O-ring Sight glass, motor side 3 Lubricant filling plug Sight glass, gearbox side Procedure 1. -
Page 23: Connecting Vacuum Side
Installation Fig. 5: Filling sealing oil for radial shaft seal rings 1 Oiler Procedure 1. Open the filler flap on the oiler. 2. Fill the oiler with lubricant to max. halfway. 3. Close the filler flap. 4. Always make sure that the lubricator is screwed tightly to the vacuum pump. 5.4 Connecting vacuum side WARNING Risk of crushing from rotating parts... -
Page 24: Connecting The Fore-Vacuum Side
Installation 5.5 Connecting the fore-vacuum side WARNING Risk of crushing from rotating parts Fingers and hands may be caught by rotating pistons within the connection flange. This results in se- vere injuries. ► Keep limbs out of the reach of the roots pump. CAUTION Danger of injury from bursting as a result of high pressure in the exhaust line Faulty or inadequate exhaust pipes lead to dangerous situations, e.g. -
Page 25: Connecting Three Phase Motor With 6-Pin Terminal Board
► Route the mains connection in accordance with locally applicable provisions. ► Always provide a suitable mains fuse to protect the motor and supply cable in the event of a fault. – Pfeiffer Vacuum recommends the circuit breaker type "K" with slow tripping characteristic. NOTICE Motor damage from overheating Limited motor fan cooling capacity, caused by low speeds, causes the motor to overheat. -
Page 26: Checking The Direction Of Rotation
2. If the direction of rotation is incorrect, exchange the 2 phases on the connection cable. 5.6.3 Connecting the PTC thermistor tripping unit Tripping units store the shut-down Pfeiffer Vacuum recommends connecting motors with PTC in the stator winding to a PTC resistor tripping device for protection against overload. 26/54... -
Page 27: Connection Example With Ptc Thermistor Tripping Unit
Installation F1 - F3 AC 220 ... 240 V T1...T3 Fig. 9: Connection example with PTC thermistor tripping unit Control voltage T1 – T3 PTC resistor sensor OFF button Tripping indicator ON button Motor, 3-phase RESET button For devices with two relay outputs only Contactor For MSR type (model) only F1 –... -
Page 28: Operation
70 °C. ► Provide suitable touch protection. Supplementary Information for Roots pumps with special overflow valves Upon request, you can obtain supplementary information PW0022 from Pfeiffer Vacuum Download Center. Procedure for open, non-blocked overflow valves 1. The customer must provide an appropriate start-up circuit (e.g., contactor circuit) for switching on the roots pump simultaneously with, or after, the backing pump. -
Page 29: Check The Lubricant Level
Operation 6.3 Check the lubricant level Check the lubricant level 1. Regularly check the lubricant level while the vacuum pump is running and at operating tempera- ture. 2. Make sure that the level is in the area at the center of the sight glass. 3. -
Page 30: Flushing Suction Chamber
Procedure ► Choose a suitable spray lance from the Pfeiffer Vacuum accessories range and follow the recom- mended cleaning procedure, as specified in the lance’s operating instructions. You can find this document in the Pfeiffer Vacuum Download Center. -
Page 31: Restarting
Operation 5. Vent the vacuum pump via the intake side. 6. Make sure that you do not vent the vacuum chambers through the vacuum pump. 7. Switch off the process- and pump-specific media supply (e.g. the sealing gas supply). 6.7 Restarting NOTICE Damage to the roots pump from significant temperature fluctuation If the housing cools down too quickly due to external influences, there is a risk of contact being made... -
Page 32: Maintenance
You can carry out maintenance work at Maintenance Level 1 yourself. We recommend Pfeiffer Vacuum Service for carrying out maintenance work of Maintenance Level 2 and Maintenance Level 3 (revision). If the required intervals listed below are exceeded, or if mainte- nance work is carried out improperly, no warranty or liability claims are accepted on the part of Pfeiffer Vacuum. -
Page 33: Tbl. 5: Maintenance Intervals
Maintenance Action Inspec- Mainte- Mainte- Mainte- Required material tion nance nance nance level 1 level 2 level 3 described in document Interval daily ≤ 1 year ≤ 1.5 ≤ 3 years years Inspection Visual and acoustic pump ■ check ● Checking lubricant level and color of the lubricant ●... -
Page 34: Changing Lubricant
The usable life may deviate from the reference value specified depending on thermic and chemical loads, or due to penetrating process media in gear and bearing chambers. Safety data sheets You can obtain the safety data sheets for lubricants from Pfeiffer Vacuum on request, or from the Pfeiffer Vacuum Download Center. -
Page 35: Filling Up Lubricant
Maintenance Draining lubricant 1. Shut down the vacuum pump and allow it to cool if necessary. 2. Vent the vacuum pump to atmospheric pressure via the intake side. 3. Unscrew the filler screws. 4. Place the collection receptacle underneath. 5. Unscrew both drain screws. 6. -
Page 36: Cleaning The Suction Chamber
A decreasing oil level, with no leaked oil visible below the roots pump, is due to a worn inner radial shaft seal ring. ► Should this occur, arrange for maintenance to be carried out by Pfeiffer Vacuum Service, during which all 3 radial shaft seal rings and the protective sleeve are replaced. -
Page 37: Cleaning The Overflow Valve
Maintenance NOTICE Property damage from incorrect cleaning procedure Flushing fluid and process media that enters the bearing and oil chambers will stick. ► During the cleaning processes, always protect all bearings with sealing gas in order to prevent a contamination of the lubricant and bearing chambers. The clearance between pistons and housing are within a tenth of a centimeter range. -
Page 38: Installing Coupling
Maintenance 6. Lightly rub the surface with emery cloth (grain size 180). – Never oil the guide pins, this has an adverse effect on damping. – If necessary, replace completely if there are pronounced traces of wear. 7. Clean the other parts. 8. -
Page 39: Installing The Coupling For Versions With Magnetic Coupling
► Attach the motor to the lifting gear with the eye bolt and pull the motor horizontally away from the vacuum pump. ► Use jacking bolts and guide pins. Supplementary information for work on the magnetic couplings of Roots pumps Upon request, you can obtain supplementary information PW0142 from Pfeiffer Vacuum Download Center. 39/54... -
Page 40: Decommissioning
The useful life of the lubricant is limited (max. 2 years). Prior to recommissioning, carry out the follow- ing operations following inactivity of 2 years or more: ► Observe the maintenance instructions – consult Pfeiffer Vacuum where necessary. ► Change the lubricant. -
Page 41: Recycling And Disposal
– Fluoroelastomers (FKM) – Potentially contaminated components that come into contact with media 9.2 Dispose of Okta roots pumps Pfeiffer Vacuum roots pumps from the Okta series contain materials that you must recycle. 1. Fully drain the lubricant. 2. Dismantle the motor. -
Page 42: Malfunctions
► Wear personal protective equipment if necessary. NOTICE Danger of property damage from improper maintenance Unprofessional work on the vacuum pump will lead to damage for which Pfeiffer Vacuum accepts no liability. ► We recommend taking advantage of our service training offering. -
Page 43: Tbl. 6: Troubleshooting
● Clean the overflow valve. ● Damage to motor bearing ● Switch off the vacuum pump immedi- ately. ● Change the motor. ● If necessary, contact Pfeiffer Vacuum Service. Only applies to vacuum ● Switch off the vacuum pump immedi- pumps with magnetic cou-... -
Page 44: Service Solutions By Pfeiffer Vacuum
We are always focused on perfecting our core competence – servicing of vacuum components. Once you have purchased a product from Pfeiffer Vacuum, our service is far from over. This is often exactly where service begins. Obviously, in proven Pfeiffer Vacuum quality. - Page 45 Service solutions by Pfeiffer Vacuum 5. Prepare the product for transport in accordance with the provisions in the contamination declaration. a) Neutralize the product with nitrogen or dry air. b) Seal all openings with blind flanges, so that they are airtight.
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Page 46: Spare Parts
Spare parts for service work are grouped into packs. These vary according to pump ver- sion. ● You can ask Pfeiffer Vacuum Service for spare parts pack order numbers. ● Have the full vacuum pump article number (with index where applicable) to hand. You can find it on the rating plate. -
Page 47: Accessories
PP 041 453 -T Setting Elements for Foot Mounting PP 041 454 -T Gear Box Evacuation (Plastic Hose) for Okta 250/M | Okta 500/M (DN ISO-F) PP 041 455 -T Gear Box Evacuation (Stainless Steel - Corrugated Hose) for Okta 250/M | Okta... -
Page 48: Tbl. 8: Okta 500 Accessories
Accessories Description Order number Setting Elements for Foot Mounting PP 041 454 -T Gear Box Evacuation (Plastic Hose) PP 041 455 -T Gear Box Evacuation (Stainless Steel - Corrugated Hose) PP 041 456 -T Temperature Sensor PP 041 457 -T Spray lance G3/8"... -
Page 49: Technical Data And Dimensions
Technical data and dimensions 14 Technical data and dimensions 14.1 General Basis for the technical data of Pfeiffer Vacuum roots pumps ● Specifications according to PNEUROP committee PN5 ● ISO 21360-1: 2016 “Vacuum technology - Standard methods for measuring vacuum-pump per- formance - General description”... - Page 50 Shipping and storage temperature -10 – 40 °C -10 – 40 °C Weight: with motor 95 kg 122 kg Tbl. 11: Technical data Okta 250 Standard | M Type designation Okta 500 Okta 500 M Version Standard with motor Standard with motor and...
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Page 51: Dimensions
70 H11 x 4,5 Ø Ø (4x M8-16/20) Ø Ø 70 H11 x 4,5 Ø Fig. 14: Dimension diagram Okta 250 Standard | M Dimensions in mm Type designation Okta 250 Okta 250 M 769 mm 799 mm 297 mm 327 mm... -
Page 52: Tbl. 14: Dimensions Okta 500 Standard | M
Technical data and dimensions DN 2 12 (4x) Ø Fig. 15: Dimension diagram Okta 500 Standard | M Dimensions in mm Type designation Okta 500 Okta 500 M 915 mm 950 mm 352 mm 382 mm 337 mm 298 mm 183 mm 183 mm Tbl. -
Page 53: Declaration Of Conformity
DIN EN 61000-6-4: 2011 ISO 21360-1: 2016 ISO 21360-2: 2012 The authorized representative for the compilation of technical documents is Dr. Adrian Wirth, Pfeiffer Vacuum GmbH, Berliner Straße 43, 35614 Asslar, Germany. Signature: Pfeiffer Vacuum GmbH Berliner Straße 43 35614 Asslar Germany (Daniel Sälzer) - Page 54 Notizen / Notes:...
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