Product Changes
Swagelok has earned a reputation for unmatched quality and consistency at the component level. We are committed to maintaining this reputation while continuing to grow and improve our product offering. At times, this requires changes to the form, fit or function of our core products.
A Level 1 - Notification of Change sets forth changes to one or more of the products you may have purchased from Swagelok or an authorized Swagelok sales and service center. Prior to release, each change listed is carefully evaluated in accordance with the Swagelok Quality System, to minimize impact to our end customers.
A Level 1 Notification relates to an applicable* change impacting Form, Fit and/or Function ("FFF") or the cosmetic appearance of a standard product. "Standard product" is any product that does not include a customer specified product or process attribute and can be purchased by any customer. This includes off-catalog product that can be assembled through designators, assemble to order ("ATO"), make to order ("MTO"), product produced by other means.
Unless otherwise noted, all changes are rolling changes and will take some time to flow through our global inventory. If you have questions regarding the impact of these changes on your applications, please contact your local authorized Swagelok sales and service center representative. They, along with regional technology centers, and trained field engineers, are available to assist you.
The following Level 1 Changes and other availability changes have been communicated in 2025.
Product Name: Design Changes Regarding SAE/MS Straight Thread (ST) Ends
Description and Reason for Change:
Shoulders are used on ST fittings when the hex size is notably larger than the ST male connection size. The shoulder reduces the connection area and provides clearance between the larger hex and the mating surface of the female ST, allowing for proper sealing. The shoulder will also facilitate the installation process as it better shows the metal-to-metal contact per SCS-00634 (Installation Instructions of Swagelok Fittings). It will not affect the product's rating.
This design change will take effect August 1, 2025. Products manufactured after August 1, 2025, will feature a turned shoulder and extended length as designated above. Customers must prepare to receive this slightly different design as of August 1, 2025. After August 1, 2025, customers may receive products with and without this turned shoulder and increased length, as inventory is depleted.
Product Name: Lubricant Change for CPA Series Check Valves and F Series Filters
Description and Reason for Change:
Swagelok has transitioned to an alternative molybdenum disulfide-based lubricant on the threads of our CPA check valves and F series filters. This dry lubricant is applied to wetted threads on these products and may be subject to system media exposure. This change will ensure the availability of these products for Swagelok customers.
Please contact your Swagelok Southern California account manager to review potential impact on your applications and corresponding requirements.
Effective Date: February 13, 2025
Product Name: Select Hose Cutter and Tube Cutter Obsolescence
Description and Reason for Change:
Due to supplier discontinuation, MS-HC-SC-A is no longer available, effective immediately. An alternative offering exists and should be ordered in place of the obsoleted part number.
MS-TCR-308 will continue to be offered until stock is depleted. When that is fully consumed, the alternative part number will replace it.
| Current Part Number | Alternative Part Number |
| MS-HC-SC-A | MS-HC-SC-1A |
| MS-TCR-308 | MS-TCRB-308-KIT |
Effective Date: January 27, 2025
Product Name: Select Carbon Steel and Brass Fitting Maritime Certification Non-renewal
Description and Reason for Change:
Due to low applicability, Swagelok will not be renewing select carbon steel and brass fitting maritime certifications. These are NK (Nippon Kaiji Kyokai), Lloyd’s Register, and ABS (American Bureau of Shipbuilding) certifications. Inventory manufactured prior to the specified change effective date will still carry the maritime certification(s). Anything manufactured after the specified change effective date will no longer carry the maritime certification(s)
Change Effective Date & Sizes Effected:
| Certification | Change Effective Date | Carbon Steel Sizes | Brass Sizes |
| Nippon Kaiji Kyokai | January 31, 2025 | 1/8~2B, 3~38A fittings | 1/8~1B, 3~25A fittings |
| Lloyd’s Register | March 15, 2025 | 1/16 to 2 in fittings | 1/8 to1-1/8 in fittings |
| American Bureau of Shipbuilding | November 1, 2025 | 1/16 to 2 in fittings |
1/8 to1-1/8 in fittings
|
Product Name: Marking Addition to Bellows Subassemblies
Description and Reason for Change:
In the spirit of continuous improvement and quality, Swagelok is adding character(s) to non-wetted surfaces of bellows assemblies. This additional laser marking is for factory traceability purposes, is cosmetic only, and is not readily visible on an assembled valve. The marking will be visible on kits. An example of a marking location is shown below. Note that marking locations may vary across different bellows offerings.
These running changes will start in the beginning of November 2025. During the transition, shipments may contain both versions until stock has been depleted.
Effective Date: August 1, 2025
Product Name: EC79 Certification and Part Marking Discontinuation
Description and Reason for Change:
As of January 1, 2026, Swagelok will no longer maintain EC79-type approvals. As a result, EC79-marked products will no longer be offered and will be removed from our catalogs.
A new specification, ISO-19887-1, has been released as of Q4 2024 and will serve as the new standard for on-vehicle fittings and valves. Swagelok’s impacted products will be tested to the requirements of ISO-19887-1 and the Clean Energy Letters of Attestation (LoA), which will be updated in 2025.
As of January 1, 2026, HV35 and HV70 products will no longer be available. The following products are also affected by this change:
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Swagelok® tube fittings
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Swagelok® AbT tube fittings
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Swagelok® FK series medium-pressure tube fittings
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SK® series valves
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AFS series valves
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CH series check valves
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TF and FW series filters
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XS series excess flow valves
A Technical Service Letter is available as needed.
Effective Date: January 1, 2025
Product Name: Fire Series GB (AGB) W3 and W20 rating change
Description and Reason for Change:
The pressure ratings for Fire Series GB Ball Valves with W3 and W20 suffix codes is changing from 6,000 psig to 4,000 psig. This change does not impact any previously sold products. The change has been made in the corresponding GB ball valve product catalog (MS-02-484).
* Applicable changes which would require notification to a Distributor or end user include changes which impact the form, fit or function of a product attribute or measurement as described in Swagelok data readily available to customers or when a change is made that is cosmetically detectable to the customer.
Effective Date: 6/1/17