Flexible waterproof casing internal rubber ring selection

Flexible waterproof casing internal rubber ring selection
 
Flexible waterproof casing is sealed by rubber ring and the gap between the pipe, different forms of sealing and sealing ring material directly affect the sealing effect of flexible waterproof casing. In the selection of the following types of sealing rubber ring can be chosen.
 
Flexible waterproof casing rubber ring is divided into two kinds, one is the cross-section of the round, the working principle is to make their own deformation through the squeeze of the gland and short pipe, and the contact area of the pipe is larger, waterproof effect is also better, and itself has a very good elasticity and restore the prototype performance, and can be used for a long time without damage to the environment. There is a rubber ring cross-section for the trapezoid, the working principle and the round rubber ring, the difference is that this rubber ring sealing performance is better, because through the extrusion, trapezoidal contact surface will be larger than the round, so the cross-section for the trapezoidal rubber ring sealing performance is better, but these two rubber ring commonly used is indeed the cross-section of the round.
 
We will be a round cross-section of the rubber ring called I type of rubber ring, trapezoidal cross-section of the rubber ring called type II, different models have unique advantages, so choose the right one for their use, will be used for a longer period of time. In addition to the shape structure, the rubber ring material also has a variety of choices, the general use of natural rubber, but according to special areas can choose a variety of different special materials, such as: acid and alkali resistant neoprene rubber, oil-resistant nitrile rubber, wear-resistant butyl rubber, good overall performance of EPDM rubber and so on these.