subject: Flexible Rubber Joint Classified Introduction [print this page] JGD type can be flexible synthetic flexible rubber joint curve, JGD-type A song can be flexible double sphere flexible rubber joint, JGD-A1 type strengthen type can scratch music double ball flexible rubber joint, JGD-A2 type curve ball silk scratching can double even flexible rubber joint, JGD-type B elastic pipeline shock absorber (different-diameter joint), JGD-C fan coil flexible rubber joint, JGD-D type rubber isolation cushion, WTX type curve of synthetic rubber can be flexible elbow, ZT, ZTB, ZTG type damping spring vibration isolators, HTXDJ elastic suspension type, etc, and at the same time the basic product use rules are as follows:
1 must according to the pipeline working pressure, the connection mode, medium and compensation to choose the appropriate mount model, the quantity according to reduce noise displacement asked to choose.
2 when the pipe produces pressure and greater than working pressure moment when should choose higher than work pressure a gear coupling. (such as: pipe start-up pressure > 1.0 MPa moment, elected labor as 1.6 MPa joint > 1.6 MPa pressure. Instantly, should choose 2.5 MPa joint).
3 when piping medium for acid and alkali, oil, high temperature and other special material should be higher than work pressure pipeline choose a gear coupling.
4 rubber joint of the flange connection should be the valve flange or conforms to GB/T9115.1 (RF) of the flange.
5 but the bend rubber joint normal applicable medium is at 0 temperature 60 of the plain water, special medium such as: oil, acid, high temperature and other corrosive and quality of a material is solid, should choose corresponding resistance materials, rubber joint, not blind or general with string.
6 but flexible rubber joint use in music pump import and export, should be located near the water pumps a side, and water pump shall be installed between metal diameter changes joints, and the installation of diameter changes in large diameter place.
7 when piping displacement of the biggest compensation quantity quartile joints, should increase the number of joint to parallel displacement, forbidden to adjust the pipeline of super difference and make joint in the limits of the song about the displacement and deviation state, more can't super limit (telescopic, displacement, deflection, etc), use specific installation data see the table below.
8 senior water supply or impending water, pipe should be fixed in the hanger, bracket or anchor rack, and can't let joints under its own weight pipe and axial force, or joint shall be equipped with the pulled off device (its holding capacity than the pipe must axial force).
9 install rubber joint. Bolt screw should be the joint outside, each end of the flange bolts according to the method of uniform compression diagonal repeatedly tightened to prevent partial pressure. Silk mouth should be using standard wrench joint force and tighten, don't use strong stem to live joint slippery silk strength, slippery edges and fracture, and regular inspection, lest cause loose of the disk or ooze water.
10 rubber joint in the first under pressure (such as: installation test, etc.) or long-term discontinuation opened again before bolt to tighten pressure should be put into operation again.
