Flexible joint is a connector with flexible function, but in reality, it mostly refers to steel flexible joint, namely, clamp flexible joint and rubber flexible joint.
Flexible joints, as the name implies, are connectors with flexible functions, but in reality, they mostly refer to steel flexible joints, namely, clamp flexible joints and rubber flexible joints.
Steel flexible joint
Installation method
A. Welding
Before installing the joint, weld the end pipe at both ends of the pipeline. The method is: remove the bolt, open the clamp, fix the end pipe according to the installation length of the technical parameters corresponding to the pipe point, and adjust the parallelism of the pipes at both ends before welding.
B. Install rubber ring and bolt
After the end pipe is installed according to the above method, after cooling, install the sealing ring in the middle of the pipes at both ends according to the figure. The method is as follows: first turn the rubber ring over, that is, turn the inner sealing surface over to the outside, then put it on either end of the pipe, adjust it to the appropriate position, then pull up the outer edge of the rubber ring, buckle it on the other end of the pipe, and adjust the position of the seal ring on both ends of the pipe, so that the seal ring is in the middle of the two end pipes. In order to facilitate the smooth installation of the rubber ring, you can try to turn up the rubber ring edge and apply Vaseline lubrication. Then buckle the clamp on the end pipe in segments and fix the outer clamp with bolts. Attention should be paid to the following: the bolts should be tightened by diagonal method at the same time and gradually alternately. When tightening the bolts, the outer clamp should be hammered, so that the sealing ring can be evenly covered and the deformation of the outer clamp at the interface to the sealing ring can be avoided. After welding, burrs, bumps, scratches and dirt on the sealing surface shall be removed or repaired, and then anti-rust paint shall be sprayed.
C. Install the external card
Finally, wrap the outer card with the rubber sealing ring, make the sealing ring fully embedded in the sealing chamber of the outer card, press the bolts in turn (it must be pressed in order to avoid damage to the sealing ring due to excessive pressure on one side), and after installation, connect water for pressure test
D. Accidental leakage treatment
1. Loosen the bolts in turn, and then press them tightly. During the process, the hammer can be used to correct the external position. 2. If the method 1 is invalid, remove the outer card, check whether the sealing ring is broken during installation, and replace the sealing ring for solution. 3 If the above methods are invalid, contact the manufacturer for guidance
Simple description
The dismanting joint also named gibault joint ,large tolerence flexible joint .It consists of the main body, the sealing ring, the gland, the telescopic short pipe and other main parts. It is a new product that connects pumps, valves and other equipment with pipelines. It connects them into a whole through full bolts, and has a certain displacement. In this way, it can be adjusted according to the installation size on site during installation and maintenance, and the axial thrust can be transferred back to the whole pipeline during work. This not only improves work efficiency, but also plays a certain protective role for pumps, valves and other equipment.
Features
● Cost effective installation and dismantling with only a few tie-rods
● Compensates for axial displacement of the pipe during installation and dismantling as the telescopic action between the inner and outer flange body allows for longitudinal adjustment
● Designed with a gland ring arrangement to apply compression on the seal
● Standard axial adjustment of ±60 mm
● Angular deflection:
● DN700 & 800 is +/- 3°
● DN900 & 1200 is +/- 2°
● Mild steel with fusion bonded epoxy coating to WIS 4-52-01
● Studs, nuts and tie-rods of zinc plated and passivated steel 4.6
● Optionally with studs, nuts and tie-rods of stainless steel A2 or acid-resistant stainless steel A4
● Optionally PN 25
● Option of any drilling within design tolerance● Notice: Tie-rods provide end load capabilities for maximum working pressure / maximum unbalanced pressure up to max 16 bar.
Post time: Jul-19-2022
