Figure 400 hammer union is designed of precision ball and cone sealing surface, making the alignment easier. And this kind of design ensures reliable pressure seal. It is recommended for manifold line connection. And it is also suitable for pump suction and mud service. It is also used for sour gas. It is threaded for pipeline and the butt weld is also available. It is often used for air, water, oil or gas service and its cold working pressure is 4000 psi. The test pressure is 6000 psi.

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