What sealing ring material can be used for the cylinder

When purchasing cylinder seals, we should consider more about what materials the cylinder seals are made of, what characteristics (media resistance) the materials of the seals have, and how many degrees Celsius the working temperature can reach , and then consider whether this type of seal is suitable for combination with the product. do you know? Different material sealing rings have different properties (media resistance), working temperature and other properties. Today, Dongsheng Sealing will tell you how to purchase or order special sealing rings for cylinders!

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Nitrile rubber sealing ring NBR

·Working temperature: 55-90 -40℃~+120℃.

Properties: Petroleum-based hydraulic fluids, animal oils, vegetable oils and greases, flame retardant fluids (HFA, HFB, HFC), aliphatic hydrocarbons, silicone oils and greases, water and air

·Instructions for use: Standard material for hydraulic and pneumatic.

■EPDM rubber sealing ring

·Working temperature: 60-80 -40℃~+140℃.

·Characteristics: Hot water, steam, brake fluid, detergent, alcohol, ketone, industrial coolant, flame retardant phosphate base fluid, organic and inorganic acid, alkali, mineral oil intolerant.

Polyurethane seal AU(W)

·Working temperature: 85-95 -30℃~+110℃.

·High abrasion resistance and high extrusion resistance, small compression permanent deformation, high mechanical strength, hydraulic oil, petroleum-based grease, oxygen, ozone, flame retardant liquid.

PTFE seals PTFE

·Working temperature: 50-70(shore D) -200℃~+250℃.

·Characteristics: Air, Light, Ozone.

·Instructions for use: Excellent chemical resistance and heat resistance, can be used in almost all occasions.

HNBR Hydrogenated Nitrile Rubber Seals

·Working temperature 70-90 -30℃~+150℃.

·Characteristics: Good mechanical properties, high abrasion resistance, air ozone, hot water, freezing fluid, mineral oil.

Viton sealing ring FKM(V)

·Working temperature: 65-90 -30℃~+230℃.

·Characteristics: Mineral oil, grease, aliphatic hydrocarbon, aromatic hydrocarbon, chlorinated hydrocarbon, gasoline, diesel oil, flame retardant phosphate base fluid, silicone oil and grease, acid, alkali.

·Instructions for use: Small gas permeability, suitable for high vacuum applications.

Silicone rubber seal VMQ(S)

·Working temperature: 50-57 -60℃~+230℃.

·Characteristics: Hot air, oxygen, high temperature inert gases, ozone, ultraviolet radiation, aliphatic and transmission oils, animal and vegetable oils, greases, brake fluids.

·Instructions for use: Wide temperature range, extremely poor mineral oil resistance, limited to static sealing applications.

Cylinder sealing ring FAQ:

Q: What material (material) is used for the seal of the high-speed cylinder?

Answer: The commonly used materials for cylinder seals are nitrile rubber and blue polyurethane. If you choose a cylinder sealing ring suitable for high-speed reciprocating operation, you can choose a fluorine rubber cylinder sealing ring.