Belphi
O-Ring sEals
Belphi Products offers a large variety of O-Rings, from custom sizes and materials to AS568 and ISO 3601 Standard O-Rings.
Oring Profiles
V-Ring
U-Ring
X-Ring
D-Ring
H-Ring
K-Ring
R-Ring
Square-Ring
Rectangle-Ring
Standard O-Ring Sizes
Belphi maintains extensive inventory of industry-standard O-Ring sizes for immediate delivery. Our stock encompasses both American and international sizing standards
Rubber Materials
Belphi supplies O-Rings in a comprehensive range of elastomer compounds, each formulated for specific environmental conditions, chemical compatibility, and temperature requirements.
Nitrile (NBR)
Excellent resistance to petroleum oils, fuels, and hydraulic fluids. Cost-effective general-purpose compound suitable for most industrial applications.
Silicone
Extreme temperature range from -100°F to 450°F. Biocompatible and FDA-compliant options available for food, pharmaceutical, and medical applications.
Viton® (FKM)
Superior chemical and heat resistance up to 400°F. Ideal for aggressive chemical environments, high-temperature applications, and automotive fuel systems.
Neoprene (CR)
Balanced resistance to oils, chemicals, and weather. Good physical toughness and flame resistance make it suitable for diverse applications.
EPDM
Outstanding weather, ozone, and UV resistance. Performs well with water, steam, alcohols, and brake fluids. Excellent for outdoor applications.
Butyl
Exceptional gas impermeability and resistance to phosphate ester fluids. Excellent for vacuum applications and chemical resistance to acids and bases.