First, the product structure features of the imported shaft revolving ring GRS.
It consists of a PTFE wear ring with a rotary lip and a rubber O ring that acts as a pretightening element. It is a rotary seal ring which can bear two sides pressure or alternating pressure.
Rotary motion form: double shaft seal.
Speed: Max1m/s;
Pressure range: 0-35MPA;
The temperature range is -60~200 degrees (depending on the material of the O ring).
Applicable media: petroleum-based hydraulic oil, non-flammable hydraulic oil, environmental protection and safety hydraulic oil (bio-oil), water and other.
Commonly used materials: polytetrafluoroethylene PTFE, NBR butadiene rubber, FKM fluorine rubber.
Two, imported shaft rotary grill ring (GRS) specification material
NBR Ding Qing, FKM fluorine glue, EPDM, SIL, PU, HNBR and other materials O type circle use matters needing attention
The O ring is widely used in industrial seals. It is widely used in automobile, bathroom, pump and valve, machinery, food, medicine and so on. It has high and low temperature resistance, oil resistance, ozone resistance, chemical resistance, cold resistance, chemical solvents and so on, especially acid resistance, aliphatic hydrocarbons, aromatic hydrocarbons and animal and vegetable oils. But if you don't pay attention to it, nothing good will be achieved.
1) the size of O-ring should be matched with the groove size, and the size is not suitable.
2) the old and old sealing rings can not be reused.
3) the O-ring with over service life should be checked and replaced in time.
4) when changing the sealing ring, we must strictly check the cleanliness of the grooves and clean up in time.
5) ensure that the assembly direction is correct and the lip protection is not damaged during installation.
6) the replacement process should be carried out according to the operation rules.
Three. Incoming inspection procedures for rubber seals such as rotary ring and O ring for imported shaft.
Rubber products such as O-rings are in a series of processes such as inquiry, order, delivery, receiving and use, among which the receiving link is also a very important part. It actually checks the products ordered before they are used. Here, Taiwan's XOK is sealed by the following recommendations:
1/ visually inspect the packaging if there is any damage so that the sealing ring will not be damaged.
2/Check whether the dimension, material hardness, quantity and color indicated on the outer packing of sealing rings are in conformity with the sales list.
3/ are there any burrs, such as burrs, bad flashes, bump and breakage, etc.
4/Check the number: If the size is large and the number is small, the number of points can be used; if the size is small and the number is large, it is recommended to check the number of sealing rings by weighing the electronic balance.
5/Size and tolerance confirmation: Vernier calipers can be used to measure the size of sealing rings, which can be carried out in the form of spot checks. Suggestions for sampling rules are as follows: 500-1000 samples, 5% samples; 1000-5000 samples, 3% samples; 5000-10000 samples, 2% samples; 10000 samples, 1% samples.
Our company extends the ring to Beijing, Shanghai, Tianjin and other parts of the country, and is popular around the world. It has good electrical insulation.