Hengtai SSQ-A-type casing expansion joints, within a certain range of axial stretching

Casing expansion joints, also known as expansion joints, expansion joints, compensators. Expansion joints within a certain range of axial stretch, but also to overcome the pipeline butt different axial offsets generated within a certain angle, can greatly facilitate the installation and removal of the pipeline valve in the pipeline to allow the amount of stretching can be freely scalable, once past its maximum amount of stretching would play a role in the limit, to ensure the safe operation of the pipeline. Details: 1. casing expansion joints of the products for a variety of water supply and drainage, water towers, water pumps, water meters, installation of removable valve provides a great convenience to the long-distance pipeline due to temperature played a good telescopic adjustment effect. 2. The casing expansion joints within the product into the cast iron pipe (HT), galvanized (DX) and steel (SF) three. Working pressure points PN6, PN10, PN16 three. 3. Loosen casing expansion joints must be installed before the pressure plate bolts to pull the product installation length, then tighten the diagonal method, do not press bias, such as overhead use, the ends must install the appropriate mounting bracket. 4. flange using GB4216.3 - 4126.5 standard. 5. The use of other specifications can be production. Connection: flanged, welded two, Buried expansion joints (non-trench, located well when installed) commonly used welding. Installation Notes: 1, sleeve-type expansion joints in the installation should be preceded by checking its models, specifications and pipeline configuration must meet the design requirements. 2, with the inner sleeve of the expansion joints should pay attention to the direction consistent with the medium flow inner sleeve son, hinge-type expansion joints hinge rotation plane should be consistent with the displacement of the plane of rotation. 3, the need for "cold tight" expansion joints, auxiliary members predeformation should only be used after removal of the pipe is installed. 4, is strictly prohibited to use expansion joints deformation method to adjust the piping installation tolerance, so as not to affect the normal function of the expansion joints, reducing the life and increase the piping, equipment, load bearing member. 5, the installation process is not allowed to slag splashing waves shell surface, allowed to wave shell by other mechanical damage. 6. After installation, piping, should be removed as soon as the mounting wave of expansion joints on the transport of yellow secondary positioning member and fasteners, according to the design requirements to limit device transferred to a predetermined position, the tube system at ambient conditions adequate compensation capabilities. 7, all active components casing expansion joints shall be external component stuck or limit its scope of activities, should ensure the normal operation of the various moving parts. 8, hydrostatic testing, response times fixed tube frame fitted with expansion joints to reinforce the ends of the pipe so that the pipe does not occur to move or turn. For expansion joints for gas medium and connecting pipe, pay attention to the need for additional water-filled temporary support. Hydrostatic test water cleaning fluid chloride ion content of not more than 96 25PPM.