Valve assembly of interchangeable parts

Claim 1

IN A FLUID-PRESSURE CONTROL A VALVE MEMBER ASSEMBLY FOR USE IN A SECTIONALIZED VALVE CASING HAVING RADIALLY INWARDLY PROJECTING SPACED ANNULAR VALVE SEATS IN AN ELONGATED VALVE-CHAMBER, SAID ASSEMBLY COMPRISING AT LEAST ONE DISC-FORM VALVE MEMBER RECIPROCABLY DISPOSED IN SAID CHAMBER BETWEEN OPPOSING VALVE-SEATS AND HAVING A THREADED STUD EXTENDING CENTRALLY FROM ITS OPPOSITE FACES RESPECTIVELY, AND COUPLING RODS EACH HAVING AN INTERNALLY THREADED SOCKET AT EACH END THEREOF TO COOPERATIVELY RECEIVED SAID STUDS, ONE OF SAID RODS BEING CONNECTED TO A STUD OF EACH VALVE MEMBER, RESPECTIVELY, TO FORM A SUPPORTABLE VALVE-STEM THEREFOR, WHEREBY ANOTHER IDENTICAL VALVE MEMBER MAY BE CONNECTED TO THE OTHER ENDS OF SAID COUPLING RODS TO FORM A TANDEM UNITARY MULTI-VALVE MEMBER ASSEMBLY.