High Pressure Stainless Steel Pipe

High Pressure Stainless Steel Pipe

high pressure stainless steel pipe High-pressure steel pipe is used for the manufacture of high-pressure containers and pipelines of high-quality carbon steel, alloy structural steel and stainless steel seamless tubes. Manufacturing methods are divided into hot-rolled (extrusion, expansion) and...
Product description

High Pressure Stainless Steel Pipe

High-pressure steel pipe is used for the manufacture of high-pressure containers and pipelines of high-quality carbon steel, alloy structural steel and stainless steel seamless tubes.

 

Manufacturing methods are divided into hot-rolled (extrusion, expansion) and cold (rolling) two kinds. Among them, hot-rolled (extruded, expanded) steel pipe diameter range of 22~530mm, wall thickness range of 2.0~70mm, Cold drawn (rolled) steel pipe outside the range of 10~108mm, wall thickness range of 2.0~13mm.


Application Range

High-pressure steel pipe has a good temperature and high temperature comprehensive mechanical properties, strict quality control, suitable for high-pressure conditions under a variety of work occasions. High-pressure steel pipe is mainly used in boilers, diesel high-pressure tubing, fertilizer equipment and pipelines and other fields.


Installation

High pressure stainless steel pipe installation with the requirements of middle and low pressure piping is much the same, but the requirements are higher and stricter, so, in addition to meeting the requirements of middle and low pressure piping installation, the following requirements should be carried out.


The high-pressure pipe sections, fittings, fasteners and valves for installation must be inspected and certified, accompanied by appropriate technical documents, and shall be properly kept, marked and neatly placed after delivery to the site. Before installation, the internal and external surface should be wiped clean, and check whether there is any foreign body in the channel, is unblocked. Check whether the roughness of the sealing surface and gasket of the nozzle meets the requirements, in the sealing surface can not affect the sealing performance of scratches (especially radial scratches), spots and other defects exist, in addition to the prescribed degreasing pipe, in the pipe mouth sealing surface and gasket on the oil or butter or white Vaseline protection. Through the inspection of qualified high-pressure pipe end thread part, in addition to the regulation of degreasing pipe, should be coated with molybdenum disulfide grease or graphite oil mixture protection.


Piping installation, should be used in the formal tube rack fixed, and high-pressure pipe, pipe fittings in contact with the tube, should be designed to install protective casing. The chamfer of the pipe end thread should be exposed when installing high pressure flange. When installing the gasket, do not use the wire to hang, in advance should be in the tube mouth and the mat besmear to butter, the soft metal high-pressure gasket should put in the seal seat accurately. Flange bolts should be evenly tightened, not excessive, bolts tightened, the two flanges should be kept parallel concentric, dew in the nut outside the thread should be $number buckle, at least not less than 2 buckle, and the exposed length of each bolt is basically consistent. In the installation process, can not be used strong pull, strong push, strong twist or modify the thickness of the gasket to make up for manufacturing or installation errors. If the pipeline installation work can not be carried out continuously and completed, should be closed in a timely manner open pipe mouth. The parts of the instrument sampling part of the pipe shall be installed at the same time as the pipe.


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