A hammer union, also called WECO couplings, is basically a connection common in the oil industries which consists of two joints integrated with threaded nuts. They allow for quick connecting the pipelines and flexible hose assemblies in the oil and gas industry.
| Spec Item | Specifications | |||
| Type | Fig 50, Fig 100, Fig 200, Fig 206, Fig 207, Fig 400, Fig 602, Fig 1002, Fig 1003, Fig 1502 | |||
| Nominal pipe size | 1 1/2in, 2in, 3in, 4in, 5in. | |||
| Material | SC, SF, AS | |||
| Work pressure | 1500psi ~ 15000psi | |||
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