Seals for Brines | McMaster-Carr

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147 Products

Packing Seals

Abrasion- and Chemical-Resistant Packing Seals

Aramid and PTFE fibers are blended for seals that resist chemicals and abrasion. Use these seals in pumps.

High-Speed Chemical-Resistant Packing Seals

Built for high-speed pump and valve applications, these super-tough seals are made of expanded-graphite yarn with carbon-yarn corners.

Chemical-Resistant Packing Seals

These lubricated PTFE fiber seals stand up to most chemicals. Use them in pumps and valves.

Heat-Shielding Chemical-Resistant Packing Seals

Also known as 100% GFO, these expanded PTFE seals contain graphite powder, which dissipates heat away from the shaft and allows pumps to run cool at high speeds.

Hard Chemical-Resistant Packing Seals

These seals are made of PTFE fiber without a lubricant, so they’re harder than other chemical-resistant packing seals to handle high-pressure valve applications.

Ultra-Sealable Oil- and
Water-Resistant Packing Seals

Our most compressible packing seals, these require less pressure than any other to make an effective seal. They’re made of lubricated PTFE-impregnated aramid fiber and are for use in pumps.

Low-Friction Oil- and Water-Resistant Packing Seals

Since they require lighter packing pressure than standard oil- and water-resistant packing seals, these seals cause less friction and reduce shaft wear. They are for use in pumps and valves.

Oil- and Water-Resistant Packing Seals

Made of PTFE-impregnated synthetic fiber, these seals are for use in pumps.

Abrasion-, Oil-, and Water-Resistant Packing Seals

The most abrasion resistant of all our packing seals, these are made of PTFE-impregnated aramid fiber that has been saturated in a lubricant. They are for use in pumps.

Heat-Shielding Oil- and
Water-Resistant Packing Seals

Synthetic yarn that’s comparable in strength to aramid is combined with graphite for soft seals that dissipate heat away from the shaft to extend the life of pumps.

Steam-Resistant Packing Seals

Use these graphite-impregnated graphite seals for steam applications in pumps and valves.

Water- and Salt-Water-Resistant Packing Seals

Made of flax fiber, these seals are excellent for marine applications since they resist salt water.

Packing Seal Tape

For use in valves and pumps, this thin, flexible tape is made from high-purity graphite with no fibers or binders that could contaminate your process line.

Packing Seal Lubricating Rings

Install between layers of packing seals to ensure lubricants are distributed evenly. These lubricating rings are also known as lantern rings.

Thread Sealants

Non-Hardening Thread Sealants with PTFE

PTFE provides a slippery surface that keeps threads from binding. These sealants never fully harden, remaining pliable enough to self-heal and stop leaks before they start.

High-Temperature Thread Sealants