What Is The General Application Of The Seal Ring? What Are The Requirements For The Installation Of The Seal Ring?
Seals are widely used in hardware and plastic, water supply and drainage, fire fighting, shipbuilding, pharmaceutical, household appliances, toys, electronics, sports equipment and bathroom and other industries.
1. The hardness of the shore of the seal ring is 45~50度, otherwise it will fail to explode. The layered side of the seal ring should be directed toward the wiring cavity, otherwise it is not intact (except for coal drills).
2), the size of the sealing ring should meet the following requirements, if one of the requirements are not met the failure of the explosion.
A, the outer diameter of the seal ring is less than or equal to 20mm, the outer diameter of the seal ring and wiring device diameter difference is less than or equal to 1mm
b, the outer diameter of the seal ring is less than 60mm or greater than 20mm, the outer diameter of the seal ring and wiring device diameter difference is less than or equal to 1.5mm
c, the outer diameter of the seal ring is larger than 60mm, the outer diameter of the seal ring and wiring device is less than or equal to 2mm
The difference between the ② seal circle diameter and the cable diameter is less than 1mm.
The width of the ③ seal ring is not less than 0.7 times times the diameter of the cable and not less than 10mm.
④ seal RING thickness is not less than 0.3 times times the cable diameter (except for 70mm2 cable), and not less than 4mm.
3), seal ring without breakage, not cut open use. No other object shall be bandaged between the cable and the sealing ring.
4), not through the cable connection nozzle with a sealing ring and thickness of not less than 2mm steel baffle plugging pressure. The sealing ring is placed in the steel baffle.
5 The line mouth pressure to be more than the amount, the line mouth and the seal ring between the installation of metal washers.