Rubber O-rings are widely used in our lives and are clo […]
Rubber O-rings are widely used in our lives and are closely related to their performance advantages. So what are the advantages of rubber O-rings compared with other types of sealing rings? Follow ZHEJIANG JIACHENG NEW MATERIAL CO., LTD .Let's find out together!
1. Suitable for a variety of sealing forms: static sealing, dynamic sealing,
Suitable for all kinds of materials, the size and groove have been standardized, and the interchangeability is strong
2. Suitable for a variety of motion modes: rotary motion, axial reciprocating motion or combined motion (such as rotary reciprocating combined motion)
3. Suitable for a variety of different sealing media: oil, water, gas, chemical media or other mixed media
Through the selection of appropriate rubber materials and appropriate formulation design, an effective sealing effect on oil, water, air, gas and various chemical media can be achieved. The temperature range is wide (-60 ℃～+220 ℃), and the pressure can reach 1500Kg/cm2 (used with reinforcing ring) in fixed use.
4. Simple design, compact structure, convenient assembly and disassembly
The cross-sectional structure of the rubber O-ring seal is extremely simple, and has a self-sealing effect, and the sealing performance is reliable. Since the structure of the rubber O-ring itself and the installation part are extremely simple and standardized, it is very easy to install and replace.
5. Variety of materials
You can choose according to different fluids: nitrile butadiene rubber (NBR), fluorine (FKM), silicone rubber (SIL), ethylene propylene diene rubber (EPDM), chloroprene rubber (CR), natural rubber (NR), hydrogenated butadiene rubber Clear rubber (HNBR), butyl rubber (IIR), fluorosilicone rubber (FLS), etc.
6. Low cost
The choice of the hardness of the rubber O-ring is more important. For example, the hardness of the water pump turbine of a power station is 70 (Shore) sealing ring, which often peels off or even cuts horizontally, and the 85-9 (Shore) sealing ring is used afterwards, and the effect is ideal.
Low hardness, easy to install, but prone to peeling, installation damage, extrusion and even pressure. The hardness is too high and the installation is inconvenient.
Usually rubber O-rings have a hardness of 40-90 IRHD, but in use, 70 IRHD is generally more suitable, with the exception of silicone rubber, 60 IRHD is generally used. Suitable for a variety of sealing forms: static sealing, dynamic sealing,
Suitable for all kinds of materials, the size and groove have been standardized, and the interchangeability is strong.