O-ring specifications and standards:
O-ring specifications are mainly UHSO ring specifications, UHPO ring specifications, UNO ring specifications, DHO ring specifications, piston rod O-ring specifications, high temperature O-rings, high pressure O-rings, corrosion resistant O-shape Ring, wear-resistant O-ring.
The standard of O-rings mainly includes: national standard GB1235-76, national standard GB3452.1-92; Japanese standard PTYPE, GTYPE, STYPE, SS/VTYPE, FTYPE; American standard AS568, British standard series; European standard series
O-ring technical requirements include appearance requirements, dimensional requirements, and material physical performance requirements.
Appearance requirements in line with
GB/T3452.2-2007
Material requirements are in line with
HG/T2579-2008
Dimensional requirements are in line with
GB/T3452.1-2005
O-ring application introduction:
YX type O-ring for hole
Product use: used for the sealing of pistons in reciprocating hydraulic cylinders. Scope of application: TPU: general hydraulic cylinder, general equipment hydraulic cylinder. CPU: Hydraulic cylinders for construction machinery and cylinders for high temperature and high pressure. Material: Polyurethane TPU, CPU, rubber.
Product hardness: HS85±2°A Working temperature: TPU: -40~+80°C, CPU: -40~+120°C Working pressure: ≤32Mpa Working medium: hydraulic oil, emulsion.
YX type hole with O-ring
Product use: This standard is applicable to the use of YX-type sealing ring when the working pressure of the cylinder is greater than 16MPa, or the function of protecting the sealing ring when the cylinder is eccentrically stressed. Working temperature: -40~+100 degrees. Working medium: hydraulic oil, emulsion, aquatic product hardness: HS92±5A Material: polytetrafluoroethylene.
YX type O-ring for shaft
Product use: For the piston rod of the reciprocating hydraulic cylinder, the scope of application: TPU: general hydraulic cylinder, general equipment hydraulic cylinder. CPU: Hydraulic cylinders for construction machinery and cylinders for high temperature and high pressure. Material: Polyurethane TPU, CPU, rubber Product hardness: HS85±2°A Working temperature: TPU: -40~+80°CCPU: -40~+120°C Working pressure: ≤32Mpa, working medium: hydraulic oil, emulsion.
O-ring sealing performance is excellent, working life is high, dynamic pressure sealing working life is 5-10 times higher than conventional rubber sealing products, up to several tens of times, under certain conditions can be the same life as the sealing substrate.
The O-ring has low frictional resistance and equal dynamic and static friction. It is 1/2-1/4 of the friction of the "0"-shaped rubber ring, which can eliminate the "crawling" phenomenon of low-speed and low-pressure movement.
The O-ring is highly wear-resistant and has an automatic elastic compensation function after the sealing surface is worn.
O-rings have good self-lubricating properties. Can be used as an oil-free lubrication seal.
The O-ring has a simple structure and is easy to install.
O-ring working pressure: 0-300MPa; working speed: ≤15m/s; working temperature: -55-250 degrees.
O-ring suitable medium: hydraulic oil, gas, water, mud, crude oil, emulsion, water-ethylene glycol, acid.
Welcome to: O-ring
O-ring application range:
O-rings are suitable for mounting on a wide range of mechanical equipment and function in a static or moving state at specified temperatures, pressures, and in different liquid and gaseous media. In the machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various types of instruments, a large number of types of seals are applied. element. O-rings are mainly used for static and reciprocating seals. For rotary motion seals, only for low speed rotary seals. O-rings are generally mounted in a groove with a rectangular cross section on the outer or inner circle to seal. O-ring seals still have good sealing and shock absorption in oil, acid, alkali, grinding and chemical corrosion. Therefore, O-rings are the most widely used seals in hydraulic and pneumatic transmission systems.
O-ring advantage:
O-rings have the following advantages compared to other types of seals:
-- Suitable for a variety of sealing forms: static seal, dynamic seal
Suitable for a variety of materials, sizes and grooves have been standardized, interchangeable
- Suitable for a variety of sports: rotary motion, axial reciprocating motion or combined motion (such as rotary reciprocating combined motion)
- Suitable for many different sealing media: oil, water, gas, chemical media or other mixed media
Effective sealing of oil, water, air, gas and various chemical media through the selection of suitable rubber materials and appropriate formulation design. The temperature range is wide (-60 ° C ~ +220 ° C), the pressure can be up to 1500Kg / cm2 when used in fixed use (combined with the reinforcing ring).
--Simple design, compact structure, easy to assemble and disassemble
The O-ring cross-section structure is extremely simple, and has a self-sealing effect, and the sealing performance is reliable.
Since the O-ring itself and the mounting structure are extremely simple and standardized, installation and replacement are very easy.
--More varieties of materials
Can be selected according to different fluids: nitrile rubber (NBR), fluororubber (FKM), silicone rubber (VMQ), ethylene propylene rubber (EPDM), neoprene (CR), butyl rubber (BU), poly Tetrafluoroethylene (PTFE), natural rubber (NR), etc.
--low cost
--The dynamic friction resistance is relatively small
material: NBR, FKM, EPDM, silicon rubber are available.
size:from 10mm to 2000mm,
custom-made is welcome.
small order is available
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