A105 full coupling refers to a permanently fixed and non-disassembled connection method, typically achieved through welding, adhesive bonding, or riveting. Its core advantages lie in high sealing performance and structural strength, making it suitable for the following scenarios:
High-pressure pipeline systems: Such as oil and natural gas transmission pipelines requiring pressure resistance above 10 MPa, where full-joint welding prevents leakage risks.
Permanent mechanical structures: Examples include bridge steel structures and building frameworks, where full-joints ensure long-term stability. In a cross-sea bridge project, full-joint welding accounted for 85% of the connections.
Electronic device sealing: Like spacecraft circuit board encapsulation, full-joint adhesive bonding provides dust and moisture resistance, meeting IP68 protection standards.
However, full-joints also have drawbacks: they are difficult to repair and often require complete replacement when damaged, resulting in higher costs.
Specification
Product Name: ASTM A105 Full Coupling, Reducing Coupling
Design Standard: ASME B16.11
Material: ASTM A105, Forged Carbon Steel
Size: 1 * 1/2 Inch, DN25*DN15
Pressure Rating: Class 3000 LB (PN400)
End Connection: Threaded
Surface Treatment: Galvanized
