MUD TANK UNIONS
Hammer seal™ Unions are designed to join drilling mud tanks quickly and without leaks. The external threaded male portion of the UNION welds to a pipe stub at the tank wall. A smaller O.D. connecting pipe extends though the female portion, the o-ring, and then the male portion of the union.

When the internally threaded female component is tightened onto the male component, the o-ring between the components is squeezed to an oblong cross-section. The o-ring then seals against the O.D. of the connecting pipe. Hammerseal™ unions are offered in sizes 3" through 20”.