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Backup rings are used in sealing and are designed to limit o-ring clearance gaps. They are used in high-pressure sealing situations.

95A Durometer | Urethane Material | 80 MM Nominal Inner Diameter | 2.5 MM Cross Section | Backup Ring

Features

• High strength and abrasion resistance
• Wide temperature range
• Chemical resistance
• Low friction
• Easy installation

92A Durometer | Urethane Material | 3 in Nominal Inner Diameter | Wiper

92A Durometer | Urethane Material | 3 in Nominal Inner Diameter | Wiper

Utilizing a double lip of urethane bonded to a carbon steel case, this wiper prevents contaminant ingression at the wiping lip and around the outer case.

Urethane Material | 20 MM Nominal Inner Diameter | Wiper

Rubber Material | 5/8 in Nominal Inner Diameter | Wiper

Rubber Material | 5/8 in Nominal Inner Diameter | Wiper

Filled PTFE back-up rings primarily used with U-seals.

Filled PTFE Material | 56 MM Nominal Inner Diameter | 5 MM Cross Section | U-Seal Back-Up Ring

Features

• High strength and abrasion resistance
• Wide temperature range
• Chemical resistance
• Low friction
• Easy installation

Commonly used with metric o-rings, these back-up rings are made of virgin PTFE unless suffix specifies otherwise.

PTFE Material | 60 MM Nominal Inner Diameter | 2.5 MM Cross Section | Backup Ring

Features

• High strength and abrasion resistance
• Wide temperature range
• Chemical resistance
• Low friction
• Easy installation

Commonly used with metric o-rings, these back-up rings are made of virgin PTFE unless suffix specifies otherwise.

PTFE Material | 65 MM Nominal Inner Diameter | 2.5 MM Cross Section | Backup Ring

Features

• High strength and abrasion resistance
• Wide temperature range
• Chemical resistance
• Low friction
• Easy installation

Molded in PTFE with a rubber energizer, this seal absorbs the shock of pressure spikes to protect the rod seal.

70A Durometer | Filled PTFE Buffer Material | 20 MM Nominal Inner Diameter | Buffer Seal

This capped piston seal consists of a filled PTFE cap, a T-shaped NBR energizer, and two split nylon backup rings. It exhibits low friction, high sealability, and excellent resistance to extrusion and wear.

PTFE Material | 75 MM Nominal Inner Diameter | Piston Seal

Features

• Easy assembly
• Low friction capabilities

Molded in PTFE with a rubber energizer, this seal absorbs the shock of pressure spikes to protect the rod seal.

70A Durometer | Filled PTFE Buffer Material | 32 MM Nominal Inner Diameter | Buffer Seal