Reducing rubber joint, also called eccentric size, is also a kind of rubber soft joint, only the specifications of the two sides are different, it is one of the more common types of pipe. To be applied in the pipe diameter is different or need to change the diameter of the pipeline, the larger bearing capacity of 1.5MPa, with good ductility, offset, lower pipeline generator resonance noise, easy installation, compensation pipeline offset, to make up for the field of large and medium-sized eccentric reducer pipeline coupling vacancy. Installation and use instructions when its attention to the following aspects. First draw the elbow side projection according to specific specifications. Include the seam joint line. By the line to each closed line graphic split into separate drawings. Take a sample diagram, (set the axis vertical) drawn on another sheet of paper, along the sample diagram height to width ratio to draw two horizontal lines on the left and right parallel surfaces and vertical with the axis, the length is exactly the circumference of the sample diagram diameter. Make an equal division of the vertical orientation of the sample drawing and mark it well, then draw such equal division vertically into the square just drawn to proceed, noting that the points on the unfolded drawing must match the points on the projected sample drawing. Make an equal division of the diagonal bar on the sample drawing along the horizontal direction. Drag the parallel surface to the sample drawing and match the corresponding points. The intersection points obtained from the unfolded sample are connected roundly, and the unfolded curve is the unfolded graph. When installing the concentric reducer rubber joint, make both sides of the sphere to raise the ring (highlighting part of the inner steel wire rope) all stuck into the flange groove to avoid the sphere and flange pulling off when the pipe is under pressure. When putting on the foot bolt, twist the symmetrical bolts (six or four) first to ensure that the sphere in the flange When the concentric reducer rubber soft joint is connected to the pipe flange, the bolt fillet should be extended to one end of the pipeline flange to avoid the external threads will be pressurized expansion of the rubber soft joint when the arch part of the squeeze or zap, each end of the bolt must be symmetrically filled with pressure and torqued, so that all the ground bolts are tight and loose, the application of standard sites, in addition to lifting the flat washer, should also lift the spring washer to prevent the nut from loosening flange specifications DN250, while the other side is DN300. reducer rubber conductive soft connection for reducer pipeline, to deal with different specifications of the problem, the size of the head rubber conductive soft connection whose main feature is to deal with metal material pipeline connection when different specifications of the problem, and at the same time have shock and noise reduction effect, can save the pipeline construction parts, cost savings.
