Xu Xinhua selection hydraulic O-ring simple description

 

Hydraulic O-ring is mainly used for static seals and reciprocating seals. Seal for rotary motion, the only low-speed rotary sealing device. Rectangular seals are generally mounted on the outer or inner circular cross-section from the seal rectangular groove. Y-ring is widely used in reciprocating sealing device.

A brief description of the hydraulic seal with a ring

Uses: This standard applies to pressure cylinder with O-rings used more than 10MPa. Operating temperature: -100 ~ 200 ?

Working medium: hydraulic oil, emulsion, water Material: PTFE according to: GB1235-76 J-type skeleton dust ring brief description adapted to the JB / ZQ4224-86

Application: reciprocating motion cylinder, the cylinder piston rod or stem from dust exposed at the role. Scope: TPU: construction machinery, general machinery, cylinder valves, and other species of all types. CPU: construction machinery cylinder, oil cylinder harsh working conditions. Material: Polyurethane, nitrile rubber Working temperature: -40 ~ 120 ? Hardness: HS 80 ± 5A according to:

Hydraulic seal sealing performance, high working life, dynamic pressure seal 5-10 times working life than conventional rubber seal products, up to several times, and under certain conditions can seal matrix with life.

Hydraulic O-ring friction is small, dynamic and static friction equal to "0" shaped rubber ring friction 1 / 2-1 / 4, to eliminate low-speed, low pressure campaign "crawling" phenomenon.

Hydraulic O-ring high wear and abrasion after sealing surface elasticity with automatic compensation function. ? ring good self-lubricating properties. Can be used for oil-free seal. ? ring structure is simple, easy to install.

Hydraulic O-ring Working pressure: 0 to 300MPa; Working speed: ≤15m / s; Operating temperature: -55-250 ?.

Hydraulic O-ring for the media: hydraulic oil, gas, water, mud, oil, emulsion, water - glycol, acids, alkalis, chemicals and the like.

Hydraulic O-ring tensile strength than ordinary rubber difference without having oil resistance. Apply to household appliances such as electric water heaters, electric irons, microwave ovens and the like. Also it applies to all kinds of contact with the human body supplies, such as water bottles, drinking fountains and the like. Not recommended for use in most concentrated solvents, oils, concentrated acid and sodium hydroxide.

Hydraulic O-rings in the general temperature range of -55 ~ 250 ? VITON fluorine rubber seals: high temperature resistance than silicone rubber, has excellent weather resistance, ozone resistance and chemical resistance, cold resistance is bad. For most of the oil and solvent resistance have, especially acids, aliphatic hydrocarbons, aromatic hydrocarbons and animal and vegetable oils. Suitable for sealing demands of diesel engines, fuel systems and chemical plants.

Hydraulic O-ring manufacturer is not recommended for use in ketones, low molecular weight esters and a mixture containing nitrate. The general temperature range of -20 ~ 250 ?. CR neoprene seals: resistance to sunlight, weathering performance is particularly good. Not afraid of dichlorodifluoromethane and ammonia refrigerant, resistant to acid, resistance to grease-based lubricants but large expansion in the low aniline point of mineral oil.