Description
The 2902022211 is the Atlas Copco service stage kit for the 3.7 kW / 10 bar oil-free scroll platform, and 1616833682 is the air-end element that sits at the centre of it. The two numbers describe one piece of work: the element produces the air, and the kit is the set the parts desk releases for it, with the air filter element 1622065800 and the small parts that are renewed in the same stop.
The kit also carries the history of the position it fills. The 2902022211 replaces the earlier number 3001150250, so a machine file that still holds the older number reaches the same stage through the current set.
This article sets out what the 2902022211 contains, which machines are recorded with it, how a scroll air-end compresses air and where it wears, how the machine is read before the stage is exchanged, and how the order is confirmed.
What the 2902022211 Service Stage Kit Is
The 2902022211 is listed as Serv stage kit 3.7kW 10 OFSL in the Atlas Copco parts programme, under the rate group S3M Oil free scroll, Element. It is the exchange set for one service stage of a 3.7 kW scroll compressor running at 10 bar, and it carries the element together with the parts that sit in the air path around it.
An Exchange Set for One Service Stage
The item is a set rather than a loose element. The number 1616833682 identifies the air-end element itself, while the 2902022211 identifies the exchange set released for it, and the set is what the parts record shows against the machines.
The difference matters at the point the enquiry is placed. A plant holding the element number has the right part in hand, and the desk confirms it through the set number before the order is written.
The 1616833682 Element at the Centre
The element inside is the oil-free scroll air-end for the 3.7 kW / 10 bar stage. It is a serial-numbered part that carries its own nameplate with the part number, the serial number and the country of build, and it arrives in the kit with that plate on it.
The nameplate is the identity the workshop works from. The number stamped on it is read against the order line before the stage goes in, and the serial number is written into the machine file for that exchange.
The Number the Kit Replaces
The 2902022211 supersedes 3001150250, the number the same stage was released under before. A machine record built around the older number therefore leads to the same set, and the parts desk settles the change at the enquiry rather than at the bench.
Both numbers belong to the one position on the machine. Where a plant keeps the older number in its own file, quoting it alongside the model and the serial number is enough for the set to be confirmed.
What the 2902022211 Kit Carries
The set covers the element and the parts that are reached with it, so the unit returns to service in one stop rather than through a sequence of separate part orders.
The Scroll Air-End Element
One element, 1616833682, is the core of the 2902022211. It is the compression stage of the machine, the part that takes the drive and delivers the air, and it is renewed as a unit rather than rebuilt in place.
The scroll profiles, the coating and the running clearances are set at the works, so the element is fitted whole. That is why the position is served by an exchange set rather than by a list of internal parts.
The 1622065800 Air Filter Element
The air filter element listed as 1622065800 travels in the 2902022211. It is the first part of the air path, and the official part data gives it as 67 × 67 × 74 mm and 34 g, with Germany recorded as the country of origin.
It is renewed with the stage because it is reached in the same piece of work. A filter that has been in service long enough to load up is also the part whose condition is read most easily, and the two are replaced together so the inlet side is returned with the element it feeds.
The Seals and Small Parts
The set also carries the seals and the small parts the service calls for, which is what makes it a stage kit rather than an element on its own. They are supplied with the element so the air path is closed with the parts the release was built around.
Machines Recorded with the 2902022211 Kit
The stage is recorded against machines in the Atlas Copco SF range of oil-free scroll compressors. The two records below name the kit and the element directly, and each is held against the machine it belongs to.
The SF 15+ and the 2902022211 Kit
The 2902022211 is recorded against the SF 15+ at the 3.7 kW / 10 bar stage, where the kit number appears against the machine in its own service documentation. That record ties the set to the machine, which is why an SF 15+ enquiry starts from the 2902022211.
The SF 15 and the Element Number
The element 1616833682 is recorded against the SF 15. A plant running that machine therefore reaches the same set, because the kit is the release that carries the element.
Why the SF Range Is Checked Machine by Machine
The SF range is built in more than one size and in more than one pressure version, and the stage number differs across them. A model name on its own does not settle which air-end a machine was built with, and the same is true of the 3.7 kW and 10 bar figures taken on their own.
The machine record is the part that closes the gap. Model and serial number together identify the build, and the element number for that build is what the parts desk confirms. A stage from a neighbouring model is not the stage for the machine in front of the fitter.
How a Scroll Air-End Compresses Air
The element at the centre of the 2902022211 is a scroll stage, and its behaviour follows from the way that design traps and moves air.
Fixed Scroll and Orbiting Scroll
Two intermeshing spirals, one fixed and one orbiting, form the compression chamber. Intake air is trapped in crescent-shaped pockets between them, and as the orbiting scroll turns, those pockets shrink and travel inward toward the discharge port at the centre.
The compression chamber runs dry. That is what gives the machine its oil-free delivery, and it is why the inlet air is filtered before it reaches the element rather than after it.
What Wear Does to the Stage
The scroll surfaces carry a coating, and the clearance between the two spirals is set small at the works so the pockets seal as they travel. Over a long service life the coating and the sealing faces wear, the pockets no longer close as tightly, and the stage delivers less air for the same shaft power.
Wear shows in the readings before it shows as a failure. That is why the machine is logged at a fixed interval, and why the decision to renew the stage is taken on a trend rather than on a single reading.
Reading the Machine Before the Stage Is Exchanged
The decision to exchange a stage is taken on the readings of the machine and the hours it has run. The numbers are collected at a fixed interval so a trend is visible before the stage is opened.
The Readings That Carry the Decision
Free air delivery at the rated pressure, the discharge temperature at a steady load and the power drawn for each unit of air are the readings that carry the decision. On a scroll stage, delivery that falls while the power holds is the pattern that points to wear in the element.
Vibration and noise at the element and at the drive end are read at the same time. Taken together across a year of operation, the readings tell a plant whether the 2902022211 belongs in the next planned stop.
The Air Filter and the Air Path
The filter that arrives with the element has its own read-back. A restricted inlet filter shows in the pressure drop across it, and the loss of delivery that follows is charged to the stage unless the filter is checked at the same time.
Renewing both positions of the 2902022211 in one stop means the new element is not put behind a filter that is already loaded.
The Exchange in Outline
The work divides into three stages, and the 2902022211 covers the parts of all three. Each stage is planned into one stop, so the machine is out of service once rather than twice.
Taking the Stage Out
The machine is isolated and the pressure line vented before anything is opened. The element then comes off its mounts and is carried on its mounting faces from there to the bench, with the pipework and the drive disconnected as the unit is freed.
The old element is kept until the new one from the 2902022211 is confirmed against it. Its plate carries the serial number of the outgoing stage, which is the number that goes into the machine file for that exchange.
Fitting the New Element
The new 1616833682 goes in from the 2902022211, and the air filter element and the seals are fitted as the air path is closed up around it. The plate on the new element is checked against the order before the sealed package is opened.
Cleanliness carries the job at this point more than at any other. The scroll chamber runs to small clearances, and the parts from the kit stay in their packaging until each one is fitted.
Alignment, Coupling and the First Run
With the element in place, the mounting faces are cleaned and checked, the coupling is inspected, and alignment and direction of rotation are confirmed before the machine is turned. The machine is then run unloaded under observation.
Discharge temperature, pressure and the readings at the element and the drive end are watched through the first running period, and the log becomes the baseline for every later check on the 2902022211 job.
Handling the 2902022211 Kit in the Workshop
At 32.88 kg in a 440 × 570 × 470 mm package, the 2902022211 moves with ordinary workshop equipment. The contents are checked against the line before the job begins.
At the Bench
The 2902022211 stays closed until the machine is safe, the drive is isolated and the work area is ready, and the element is unwrapped at the bench rather than on the floor. The inlet and discharge openings are kept covered through the exchange.
Each part returns to its packaging until it is fitted. A scroll chamber that takes grit at the fitting stage carries that grit for the life of the element.
The Element Nameplate and the Serial Number
The element arrives with its own plate, and the serial number on that plate is written into the machine file when the element goes in. Plants that record the outgoing serial in the same way keep a traceable history of every 2902022211 job on the machine.
The plate also settles the identity of the element against the order at the bench, before a sealed package is opened. It is the last point at which a wrong-number stage is caught with the machine still together.
Ordering the 2902022211 Service Stage Kit
Two numbers settle the order: the element number held by the plant and the set number the exchange kit is released under. The parts desk works between the two with the machine record in hand.
The Number the Parts Desk Records
The element 1616833682 is recorded in the programme with the instruction to order the 2902022211, so the set number is what goes on the order line. A plant that sends the element number reaches the same set, because the two numbers are held as one entry.
What to Send with the Enquiry
Send Seadweer the compressor model and serial number together with whichever of the numbers is at hand. The team confirms the stage for the machine and the pressure version, and the number the kit replaced is settled in the same pass.
The 2902022211 is then quoted with the contents line the workshop will check in, so the set that arrives matches the machine it was confirmed against.
Technical Specifications
The tables below collect the identification, the contents and the physical data of the 2902022211 and the parts it carries, as the item data and the official part records state them.
Part Identification
| Kit number | 2902022211 |
| Element number | 1616833682 |
| Description | Serv stage kit 3.7kW 10 OFSL |
| Rate group | S3M Oil free scroll, Element |
| Pressure | 10 bar(e) / 145 psig |
| Supersedes | 3001150250 |
| Country of origin | Belgium |
| Tariff code | 8414900090 |
Kit Contents
| 1616833682 | Scroll air-end element — OFSL 3.7 kW / 10 bar |
| 1622065800 | Air filter element |
The 1622065800 Air Filter Element
| Part number | 1622065800 |
| Description | Air filter (element) |
| Dimensions (L × W × H) | 67 × 67 × 74 mm |
| Weight | 34 g |
| Country of origin | Germany |
| Tariff code | 84219990 |
Dimensions and Weight
| Kit dimensions (L × W × H) | 440 × 570 × 470 mm |
| Kit weight | 32.88 kg |
Machine Coverage
| SF 15+ | 2902022211 service stage kit |
| SF 15 | 1616833682 air-end element |
The figures above are the item data of the 2902022211 and of the parts it carries, kept in one place for handling and for the machine file. The 2902022211 is the number to quote for the exchange set, and the numbers it replaced remain in the record for machines built under them.
FAQ
What is the difference between the 2902022211 and the 1616833682?
The 1616833682 is the oil-free scroll air-end element on its own, and the 2902022211 is the service stage kit released for it. The kit carries the element together with the 1622065800 air filter element and the small parts the service calls for.
Which machines are recorded with the 2902022211 kit?
The 2902022211 is recorded against the SF 15+, and the element 1616833682 is recorded against the SF 15. Every other machine in the range is confirmed from its own record, because the stage number differs between builds.
What is inside the 2902022211 kit?
The set holds the scroll air-end element 1616833682, the air filter element 1622065800 and the seals and small parts released with the stage. All of them are reached in the same piece of work, so the machine returns to service in one stop.
Does the 2902022211 replace the 3001150250?
Yes. The 2902022211 supersedes 3001150250, which is the number the same stage was released under before. A machine record that still holds the older number reaches the same set.
What does the 1622065800 air filter do in the kit?
It sits at the front of the air path and cleans the air before it reaches the scroll element. It is renewed with the stage so the new element is not put behind a filter that is already loaded.
How is the 2902022211 service stage kit ordered?
The element number is held in the programme with the instruction to order the set number, so the 2902022211 is what goes on the order line. Send Seadweer the compressor model and serial number and the desk confirms the stage for the machine.
More Maintenance Kits Available
We can also supply further Atlas Copco maintenance kits on request. Take a look at the table below, or send us your requirement and we will follow up.
| Part Number | Part Name | Part-Number |
|---|---|---|
| 1124080417 | KIT 10 VITI 7011420000 | 1124-0804-17 |
| 1124080424 | KIT 10 VITI 7012120000 | 1124-0804-24 |
| 1124080427 | KIT 5 VITI 7012290000 | 1124-0804-27 |
| 1124080445 | KIT 3 DADI 7024070000 | 1124-0804-45 |
| 1124080459 | KIT 5 OGIVA X TUBO NYLON 6MM 7 | 1124-0804-59 |
| 1124080482 | KIT PRESS.SCS 6,3/10AMP.8/10BA | 1124-0804-82 |
| 1124080483 | KIT PRESS.SCS 10/16AMP.8/10BAR | 1124-0804-83 |
| 1124080489 | KIT GUARNIZIONI STS 800 | 1124-0804-89 |
| 1124080511 | KIT FILTRO ASPIRAZIONE F.114-F | 1124-0805-11 |
| 1124080519 | KIT TUBO ALIM.NUOVO SERB.ECU | 1124-0805-19 |
| 1124080523 | KIT PROMO AB100/268 M-T | 1124-0805-23 |
| 1124080524 | KIT PROMO AB100-200/360 M-T | 1124-0805-24 |
| 1124080525 | KIT PROMO AB200/415 T | 1124-0805-25 |
| 1124080526 | KIT PROMO AB200/515 T | 1124-0805-26 |
| 1124080527 | KIT PROMO AB300/598 T | 1124-0805-27 |
| 1124080528 | KIT PROMO AB300/678 T | 1124-0805-28 |
| 1124080529 | KIT PROMO AB300/858 T | 1124-0805-29 |
| 1124080620 | KIT SERVICE GM 142/143 | 1124-0806-20 |
| 1124080626 | KIT SERVICE VS 204 | 1124-0806-26 |
| 1124080629 | KIT SERVICE F-114 | 1124-0806-29 |
| 1124080634 | KIT SERVICE AB 550/800 | 1124-0806-34 |
| 1124080635 | KIT SERVICE AB 525 | 1124-0806-35 |
| 1124080637 | KIT SERVICE AB 671/851 | 1124-0806-37 |
| 1124080638 | KIT SERVICE AB 1000/1500 | 1124-0806-38 |
| 1124080639 | KIT SERVICE AB 901/951/981 | 1124-0806-39 |
| 1124080640 | KIT EL/VALV.PACK V75 VMC | 1124-0806-40 |
| 1124080645 | KIT ELETTROVALV.TEC 22 V.220/5 | 1124-0806-45 |
| 1124080647 | KIT SERBAT.LIV.OLIO AB 1000 X | 1124-0806-47 |
| 1124080648 | KIT SERVICE AB 360 | 1124-0806-48 |
| 1124080649 | KIT SERVICE AB 248/338 | 1124-0806-49 |
| 1124080651 | KIT SERVICE AB 415/515 | 1124-0806-51 |
| 1124080660 | KIT RICAM.MOT.VENT.220V 10W WH | 1124-0806-60 |
| 1124080664 | KIT FILTRI S.MAGNUM VX 362-SD- | 1124-0806-64 |
| 1124080679 | KIT FILTRI HOBBY/MAXIMAT | 1124-0806-79 |
| 1124080683 | KIT TAPPO OLIO AB 598/808 | 1124-0806-83 |
| 1124080695 | KIT SERVICE AB 268/348 | 1124-0806-95 |
| 1124080696 | KIT SERVICE AB 598/808 | 1124-0806-96 |
| 1124080697 | KIT SERVICE AB 678/858 | 1124-0806-97 |
| 1124080698 | KIT SERVICE AB 998 | 1124-0806-98 |
| 1124080699 | KIT NUOVO FILTRO AB 510/410/33 | 1124-0806-99 |
| 1124080700 | KIT FILTRO GMV NUOVI | 1124-0807-00 |
| 1124080781 | KIT VENTOLA F-245+VITE+RONDELL | 1124-0807-81 |
| 1124080782 | KIT ELETTROVALVOLA+STAFFE MSU | 1124-0807-82 |
| 1124080806 | KIT REFRIG.AB670/850+GUARNIZ. | 1124-0808-06 |
| 1124080820 | KIT RID.PRES.C/FILTRO MW-15BAR | 1124-0808-20 |
| 1124080821 | KIT FILTRO ARIA BASIC 270-300 | 1124-0808-21 |
| 1124080822 | KIT BASE+ANTIVB.SCS (RIC) | 1124-0808-22 |
| 1124080824 | KIT FILTRO X V40 | 1124-0808-24 |
| 1124080854 | KIT GUARNIZIONE AB 670 BLITZ | 1124-0808-54 |
| 1124080855 | KIT SERB.VERT.90LT.ROSSO-CE-S/ | 1124-0808-55 |
Marco Bellini –
Our machine file still carried the 3001150250 number from the last stage exchange, so the enquiry went out on that and came back as the 2902022211 set. Seadweer read the model and the serial number off the machine before the order was written and confirmed the element number inside the kit. The set arrived complete, with the air filter element on the contents line, and the plate on the element was checked against the order before the old stage came off. The stage went back in during a planned stop, and delivery and discharge temperature have held where we log them since.