When your pump stops, production can stop too.
Order by 4pm on working days for same-day despatch of in-stock vanes, subject to confirmation and carrier arrangements.
We’ll move heaven and earth to get your vanes on their way. Where possible, we can arrange urgent despatch after our normal cut-off.
Because getting your machinery running again matters to us.
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UK, European & Worldwide Supply
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Original Becker carbon vanes are commonly marked WN 124-120 on the vane edge. This marking can therefore be particularly useful when identifying a replacement vane removed from a pump.
WN 124-120 is a 63 × 36 × 4 mm carbon graphite vane used in a range of Becker DT, T and VT dry-running rotary vane pumps.
Becker OEM reference 90134700007 is a set of seven WN 124-120 vanes for the compatible Becker pump models listed on this page.
Check the vane dimensions and compatible pump models below. If you are unsure whether this is the correct vane for your Becker pump, contact VacAir with your pump model. |
WN 124-120 identification marking on a Becker carbon vane.
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Becker WN 124-120 vanes are used in the following Becker dry-running rotary vane pump models. Becker OEM reference 90134700007 is supplied as a set of 7 vanes.
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DT Series
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T Series
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VT Series
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TECHNICAL INFORMATION
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KEY FEATURES✓Replacement for Becker WN 124-120 carbon vanes
✓63 × 36 × 4 mm vane dimensions
✓Manufactured from premium-grade carbon graphite
✓Used across Becker DT, T and VT pump ranges
✓Technical support from experienced vacuum pump specialists
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The Becker WN 124-120 carbon vane is fitted to a range of Becker DT, T and VT dry-running rotary vane pumps. These carbon graphite vanes are normal wear components and should be inspected during routine maintenance to help maintain pump performance and reduce the risk of unexpected production stoppages.
A new WN 124-120 vane measures 63 × 36 × 4 mm, with an original vane height of 36 mm and a minimum wear height of 21 mm. As the carbon wears, its remaining height decreases. Vanes approaching the minimum wear limit should be replaced as a complete set, with any unusual wear patterns investigated before new carbon is installed.
The compatible Becker DT 3.16, DT 4.16, T 3.16 DSK, T 4.16 DV, VT 3.16 and VT 4.16 pumps listed on this page each require seven WN 124-120 vanes. The corresponding Becker OEM reference is 90134700007. Confirm the pump model and vane marking before fitting replacements, particularly where the equipment has been in service for many years.
WN 124-120 maintenance inspection checklist:
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✓ Remove and inspect all seven carbon vanes ✓ Measure each vane against the 21 mm wear limit ✓ Examine the carbon for cracks and chipped edges ✓ Compare wear patterns across the complete set ✓ Remove carbon dust from the rotor slots ✓ Inspect rotor and rotor shaft condition |
✓ Check the cylinder for scoring or damage ✓ Examine bearings for wear or abnormal movement ✓ Inspect the inlet filter and relief valve ✓ Look for overheating or contamination ✓ Investigate abnormal or premature vane wear ✓ Check that each vane slides smoothly into its rotor slot without binding |
CORRECT CARBON VANE ORIENTATIONWhen installing Becker WN 124-120 replacement carbon vanes, clean the rotor slots carefully and ensure that each vane moves freely throughout its working travel. Any remaining carbon fragments or deposits can restrict vane movement and contribute to premature wear or pump damage. The higher edge of the vane is the leading edge. The chamfer follows behind the leading edge, as illustrated in the adjacent VacAir fitting diagram. Confirm the vane profile and correct orientation for the particular pump’s direction of rotation before installation. Inspect the cylinder running surface, rotor slots, shaft and bearings before fitting the new seven-vane set. Where the previous vanes have broken, worn unevenly or suffered overheating, identify the underlying cause rather than simply replacing the carbon. Always follow the relevant Becker manufacturer’s fitting and maintenance instructions. VacAir’s engineering team can assist with vane identification, professional fitting, pump servicing and mechanical repairs when required. |
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VacAir Superstore supplies Becker WN 124-120 replacement carbon vanes from our Leeds premises to industrial customers, maintenance departments and specialist vacuum pump service companies throughout the UK, Europe and worldwide. We understand that a failed vacuum pump can interrupt production, delay deliveries and create significant costs. In-stock orders confirmed before 4pm on working days can qualify for same-day despatch, subject to order confirmation and carrier arrangements.
NEED VANES URGENTLY AFTER 4PM? CALL US ANYWAY.
At VacAir, we don’t simply stop trying to help when the normal despatch cut-off has passed. We’ll move heaven and earth to get your replacement vanes on their way and help get your machinery running again as quickly as possible. Where circumstances allow, we can make special arrangements for urgent despatch outside our normal cut-off time. For urgent requirements, FedEx Express and DHL Express services can be arranged wherever available, including next-day and timed delivery options. Replacement vanes may also be collected from our Leeds trade counter, with same-day courier services available by arrangement for particularly urgent UK breakdowns. For urgent assistance or a delivery quotation, call 0113 2088501 or email sales@vacair-superstore.com. Quote WN 124-120 or Becker 90134700007 when contacting us. |
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Since 1996
Vane Supply
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40+ Years
Former Becker UK Agent Experience
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ISO 9001:2015
Quality Management
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OEM-Trained
Engineers
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Replacement carbon vane specialists since 1996. VacAir has been supplying replacement vacuum pump vanes, spare parts and technical assistance for three decades. We support manufacturers, engineering departments, maintenance businesses, distributors and end users who rely on dependable vacuum equipment. Our focus has always been on supplying the right components at competitive prices, backed by genuine product knowledge and responsive service.
Becker WN 124-120 replacement vanes available from UK stock. VacAir stocks the 63 × 36 × 4 mm replacement carbon graphite vane identified by WN 124-120, under our own reference VA901347. We understand that the associated Becker OEM 90134700007 identifies a seven-vane set for the compatible DT, T and VT pump models listed on this page. Our experience helps customers obtain the correct quantity without the uncertainty sometimes associated with older pump models and part references.
More than 40 years of combined former Becker UK agent experience. Our senior team brings substantial first-hand knowledge of Becker vacuum pumps, their applications, internal components and maintenance requirements. We can help customers understand vane wear, filtration, fitting considerations and potential causes of abnormal pump operation. VacAir is a specialist vacuum pump business, not a generic catalogue seller with little knowledge of the machinery behind the part number.
Competitive prices and our genuine Price Promise. We aim to offer excellent value on high-quality replacement carbon vanes while retaining the benefits of specialist technical support. Our Price Promise allows qualifying lower prices from other UK suppliers to be considered for genuinely comparable replacement carbon vanes, subject to our published terms and conditions. Customers should not have to choose between competitive pricing and dealing with a knowledgeable supplier.
Customer satisfaction backed by externally audited ISO 9001:2015 systems. VacAir operates an ISO 9001:2015 certified quality management system, with externally audited processes supporting customer satisfaction, consistent service and continual improvement. We value accurate information, straightforward communication and honest trading practices. Our reputation has been built over decades through real customer relationships and dependable support.
We do not fabricate product reviews, invent customer ratings or display artificial review scores on our website or provide them to search engines.
We have no need to. Our products, expertise and reputation have supported customers across the pump industry for decades.
OEM-trained engineers and dedicated Becker pump repair facilities. Our expertise extends well beyond supplying carbon vanes. VacAir’s engineers can fit replacement vanes, inspect rotor and cylinder condition, investigate mechanical problems and carry out servicing or repairs. Our Becker pump repair and refurbishment workshop provides customers with professional fitting, maintenance and mechanical repair support at highly competitive rates.
Becker spare parts, replacement alternatives and complete pump support. We stock a wide range of Becker vacuum pump spare parts, including OEM components and quality replacement alternatives. Customers can discuss additional maintenance requirements with a company that understands the complete vacuum pump, rather than dealing with separate suppliers for vanes, spares and technical assistance.
Reliable supply for planned maintenance and urgent breakdowns. Whether a customer is servicing a single Becker DT 3.16, maintaining multiple VT 4.16 pumps or carrying out repairs on older T-series equipment, our aim is to make the process straightforward. We combine UK vane stock, correct set quantities, practical technical knowledge, competitive quotations and UK or international delivery arrangements to help keep essential equipment operating.
Trust VacAir Superstore for all your vacuum pump needs.
Contact us today to learn how we can help you save money and keep your operations running smoothly.