Functions of Pipeline Joints
Aug 07, 2019
Pipeline joint is also called malleable cast iron threaded pipe fittings (abbreviated as pipe fittings) and malleable cast iron pipe fittings. It is a kind of connection fittings for connecting pipes and pipes and pipes and valves. It is suitable for pipes with nominal pressure PN not exceeding 1.6 MPa and working temperature not exceeding 200 degree C in neutral liquids or gases. Galvanized pipe fittings (white iron pipe fittings) are mostly used to transport water, gas and air pipelines. Non-galvanized pipe fittings (black iron pipe fittings) are mostly used in pipelines for transporting steam and oil products. The threads in the pipeline must be 550 except locking nuts and threads.
| Nominal path | 6mm | 8mm | 10mm | 15mm | 20mm | 25mm | |
| Thread Code | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | |
Pipeline joints (GB32 "87-3289-82) include external wire vomiting, Non-diameter external joints, live joints, internal joints, internal and external screws, locking nuts, elbows, Non-diameter elbows, meniscus and external meniscus, 450 elbows, three-way, three-way, four-way, Non-diameter four-way, Non-diameter four-way, external pipe blockage and pipe cap types. The above table lists some common specifications of malleable cast iron pipe connectors.
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