ISO63 Series O-Rings

ISO63 Replacement O-Rings
Fits ALL ISO63 (LF63) Centering Ring
• Replacement Elastomer O-Rings

Available O'Rings (Gaskets)
• Buna-N (Nitrile, NBR):
100°C Max
• Viton (Fluorocarbon, FKM): 200°C Max
• Silicone (Chemical Series): 200°C Max

ISO63 Buna O-Ring <br> (ISO63-250-OB)
ISO63 Silicone O-Ring <br> (ISO63-250-OS)
ISO63 Buna O-Ring

Price: $14.45
Sale: $1.00
ISO63 Silicone O-Ring

Price: $17.65
Sale: $4.00
ISO63 Viton O-Ring <br> (ISO63-250-OV)
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ISO63 Viton O-Ring

Price: $22.65
Sale: $4.00
Centering Ring Assemblies

ISO63, All Types

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Click to enlarge
ISO63 Series Hardware

ISO Center Only Rings

Viton® (Fluorocarbon, FKM) O-Rings:
200°C Maximum
• Viton® (Fluorocarbon, FKM)
is normally used in vacuum service. Viton® has a low porosity to most gases and withstands high temperatures up to 200°C for short periods.

Silicone O-Rings:
200°C Maximum, Chemical Applications
• Silicone
is used in chemical applications and can withstand temperatures of 200°C for short periods, but silicone tends to harden to prolonged high temperature service, sticking to the metal surfaces and making the o-ring difficult to be replaced. Silicone is also very porous to helium.

Buna-N O-Rings:
100°C Maximum
• Buna-N
is low cost, but their maximum operating temperature of 100°C makes them unacceptable for many high temperature vacuum applications.

Contact LDS Vacuum with any questions:
Phone (407)862-4643 via Fax (407)862-8723 or

LDS Vacuum Products is a 100% woman owned company and
certified Woman Owned Small Business (WOSB)
The logos and/or trademarks appearing on this page are not owned by or registered to LDS but, rather, designate products sold by LDS, and are owned and/or registered to the manufacturers or suppliers of the products.
Viton® is a registered trademark of DuPont Dow Elastomers