KDF Full Face Rubber Joint

KDF full face rubber joint is an improved version of KXT single sphere rubber joint according to the needs of users, which can relatively withstand greater displacement and pressure. More importantly, the pull-off condition of the single-sphere rubber joint under excessive pressure has been improved. The sealing surface of the improved large flanged rubber joint is the same as the outer diameter of the flat welding flange, and the sealing surface is also drilled. The rubber joint is connected with the pipeline as a whole, thereby improving the stability of the rubber joint. The product has high internal density, can withstand high pressure, and has good elastic deformation effect.

Technical parameters of full face rubber soft connection:

KDF flange type rubber joint product installation instructions:

1. When the rubber joint is in the pipeline construction, it must be in a natural state, and it is strictly forbidden to install it beyond the displacement limit.

2. When the pipeline medium is resistant to acid and alkali, oil, high temperature and other special materials, a joint that is higher than the working pressure of the pipeline should be selected.

3. When the rubber joint is installed on the ground, suspended or vertically, the actual working axial pressure of the rubber joint is less than the supporting force of the pipeline, otherwise an anti-pull-off device should be installed to prevent the product from running erratically during operation.

4. The flange connecting the rubber joint should be a valve flange or a flange conforming to GB/T9115.1-2000.

5. During vertical installation and overhead installation, corresponding fixing brackets and stress brackets should be installed at both ends of the product to prevent the work from being pulled off after being under pressure.

6. The installation should be kept away from heat sources, and the use of media that does not meet the requirements of this product is strictly prohibited.

7. After the rubber soft joint is under pressure for the first time (such as installation pressure test, etc.) or before it is reactivated after long-term disuse, the bolts should be re-tightened and put into operation.

8. When the displacement of the pipeline is greater than or equal to the large compensation amount of the joint, the number of joints should be increased to parallel the displacement. It is strictly forbidden to adjust the deviation of the pipeline, so that the joint is in a state of extreme flexural displacement and deviation, and cannot exceed the limit. (Extension, displacement, deflection, etc.), please refer to the table below for specific installation data.

9. For high-rise water supply or suspended water supply, the pipeline should be fixed on the hanger and bracket, and the joint should not be allowed to bear the weight and axial force of the pipeline, otherwise the joint should be equipped with an anti-pull-off device (the bearing force must be greater than the axial force of the pipeline) ).

10. When installing the rubber joint, the screw rod of the bolt should extend to the outside of the joint, and the bolts on the end face of each flange should be repeatedly and evenly tightened according to the method of diagonal pressure to prevent pressure deviation.