Spiral seam high-frequency welded steel pipe SY5038-2000 for pressure fluid transport, welded by high-frequency lap welding method, for high pressure welded steel pipe with spiral seam for pressurized fluid transport. Steel tube has strong pressure bearing capacity and good plasticity, which is convenient for welding and processing;
General low-pressure fluid transmission, with spiral submerged arc welded steel pipe SY5037-2000, using two-sided automatic submerged arc welding or single-sided welding method for the general use of water, gas, air and steam and other low-pressure fluid transport submerged arc welded steel pipe.
Spiral steel pipe commonly used standards are generally divided into: SY/T5037-2008 (parts, also known as common fluid transmission pipeline with spiral seam submerged arc welded steel pipe), GB/T9711.1-2008 (GB, also known as the oil and gas industry transport steel pipe Technical conditions for delivery Part I: Grade A steel pipes (required strictly GB/T9711.2 Grade B steel pipes)), API-5L (American Oil Institute, also called pipeline steel pipes; which are divided into two grades of PSL1 and PSL2), SY/T5040-2008 (Spiral welded steel pipe for piles).
SY/T5037-2008 is the Ministry of Petroleum set up standards are generally called the standard
GB/T9711.1-2008 National spiral pipe, oil and gas industry transmission steel pipe, Grade A general low pressure fluid conveying spiral seam high frequency welded steel pipe (SY5039-2000) is a hot rolled steel strip coiled tube, regular temperature spiral molding High-frequency lap welding is used to weld high-frequency spiral welded steel pipe for general low-pressure fluid delivery.
Spiral welded steel pipe for piles (SY5040-2000) is made of hot-rolled steel strips as tube blanks, and is usually thermo-screwed. It is made by double-sided submerged arc welding or high-frequency welding. It is used for civil construction structures, piers and bridges. Basic pile steel pipe
Guide Ring is a mechanical seal, also known as a guide ring. It is usually made of metal or plastic and used to support and position pistons or rods. Guide Ring has excellent wear resistance and corrosion resistance, which can effectively reduce leakage and friction, thereby extending equipment life. Guide Ring is widely used in the hydraulic, pneumatic, mechanical, and automotive industries as an important mechanical seal.
The classification of Guide Ring can be divided by material, structure, and purpose. According to material classification, Guide Rings are mainly divided into metal Guide Rings and plastic Guide Rings. Metal Guide Rings are usually made of metals such as copper, iron, and stainless steel, which have high strength, wear resistance, and high-temperature resistance; The plastic Guide Ring is usually made of polytetrafluoroethylene (PTFE), nylon, polyimide and other materials, with good corrosion resistance and low friction coefficient.
According to structural classification, Guide Rings are mainly divided into unidirectional Guide Rings and bidirectional Guide Rings. A unidirectional guide ring can only withstand pressure in one direction and is typically used in hydraulic and pneumatic systems; The bidirectional guide ring can withstand bidirectional pressure and is typically used in the mechanical and automotive industries.
According to usage classification, Guide Rings are mainly divided into piston Guide Rings and rod Guide Rings. The piston guide ring is usually used to support and position the piston, preventing friction and leakage between the piston and the cylinder liner; The rod guide ring is used to support and position the rod, preventing friction and leakage between the rod and the seal.
Wearing,Guide Ring,Guide Strip
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