Mechanical seals
Pump mechanical seals built to spec: standard, cartridge, double, metal bellows, split and custom, OEM-compatible to the major brands.
- Faces
- SiC, tungsten carbide, carbon, alumina
- Elastomers
- FFKM, FKM, EPDM, PTFE
- Standards
- API 682, ISO 3069, EN 12756, DIN 24960
- Build from
- The seal drawing, the seal’s model / part number, or a sample of the old seal
Seal types we manufacture
The core ranges.
We only list the core ranges here. Send the seal drawing, the seal model or a sample and we build to spec, including OEM-compatible and obsolete designs.
Cartridge seals
Pre-set, pre-assembled single and double cartridges to API 682. Drop-in fit with no field measurement.
View cartridge seals → Barrier / buffer fluidDouble seals
Back-to-back, tandem and face-to-face arrangements with barrier or buffer fluid for hazardous duty.
View double seals → No elastomer secondaryMetal bellows seals
Edge-welded and formed bellows for high-temperature, cryogenic and chemical service.
View bellows seals → Built to OEM dimensionsOEM-compatible seals
Drop-in equivalents for Grundfos, Burgmann, John Crane, Flygt and most other brands.
View OEM-compatible → Type 1 · 2 · 21 and moreStandard component seals
Single and multi-spring seals for general water and industrial pumps.
View single seals → Elastomer bellowsRubber bellows seals
Rubber (elastomer) bellows seals for water, utility and light process pumps, metric and inch.
View rubber bellows seals → Pusher sealsMulti-spring seals
Multi-spring pusher seals for process, chemical and hot-water pumps, balanced and unbalanced.
View multi-spring seals → Built from a sampleCustom & split seals
Custom-machined and split seals for obsolete, oversized or hard-to-service pumps.
Request custom →Find seals by application
Need a seal for a specific service?
Browse mechanical seals by application: chemical, HVAC, slurry and mining, pharmaceutical, food and beverage, power, wastewater and pool pumps.
Chemical processing
→Corrosive duty. Silicon carbide faces, Viton / FFKM elastomers.
Mining & slurry
→Abrasive slurry duty. Hard-faced, heavy-duty seals.
Power generation
→Boiler-feed and cooling-water pump sealing.
HVAC
→Chilled-water and condenser-water pumps in commercial buildings.
Food & beverage
→Sanitary, hygienic sealing for process and transfer pumps.
Pharmaceutical
→Clean-room and high-purity pump sealing.
Submersible & wastewater
→Double seals for Flygt, Grundfos, Tsurumi and most sewage and drainage pumps.
Swimming pool
→Shaft seals for Hayward, Pentair, Jacuzzi and most pool pumps.
Hot tub & spa
→Heat-rated shaft seals for Waterway, Balboa, Aqua-Flo and most spa pumps.
Send the seal drawing. We build the seal.
Send a seal drawing, the seal’s model or part number, or a sample of the old seal. As the manufacturer we quote OEM-compatible, custom and private-label seals at low minimums.