Mechanical Seal 25mm Shaft Carbon/SiC/Viton
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Product Description
John Crane SEAL-MECH-25-FKM Mechanical shaft seal 25mm with FKM/Viton elastomers. Carbon vs Silicon Carbide faces. For hot water, oil, and chemical service pumps. Used across marine engine-room, cargo transfer, ballast, bilge, cooling and process fluid transfer duty.
Technical Specifications
- Material
- Carbon/SiC/FKM/SS316
- Standard size
- 25mm Shaft
- Pressure rating
- 16 bar
- Temperature range
- -20C to +180C
- Approval
- API 682 4th Edition, ISO 21049, ATEX, CE, FDA 21 CFR 177.2600 (elastomer variants)
- Standards
- API 682, ISO 21049, EN 12756
- Approvals
- CE, ATEX
- HS code
- 8484.20
Standards & Compliance
- Size / Series
- 25mm Shaft
- Material
- Carbon/SiC/FKM/SS316
- Pressure Rating
- 16 bar
- Temperature Range
- -20C to +180C
- Classification / Approval
- API 682 4th Edition, ISO 21049, ATEX, CE, FDA 21 CFR 177.2600 (elastomer variants)
- HS Code
- 8484.20
Compatibility & Fitment
Part number shown for quick reference. Fits listed model. For other models or if unsure, contact us with pump type and serial number to verify compatibility.
Product Documentation
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Catalogue entry last verified: 2026-08-20. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy SEAL-MECH-25-FKM?
- SEAL-MECH-25-FKM can be ordered from cballast.com as a John Crane catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this John Crane product?
- The manufacturer part number is SEAL-MECH-25-FKM.
- What is the HS code for SEAL-MECH-25-FKM?
- The customs tariff (HS) code for SEAL-MECH-25-FKM is 8484.20.
- Who manufactures SEAL-MECH-25-FKM?
- SEAL-MECH-25-FKM is a John Crane product in the Pumps range.
- Is a datasheet available for SEAL-MECH-25-FKM?
- Yes — the SEAL-MECH-25-FKM datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for SEAL-MECH-25-FKM?
- The minimum order quantity is 1.
- Is SEAL-MECH-25-FKM available?
- Yes — SEAL-MECH-25-FKM is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).