Secondary containment for operable valves

A secondary containment system for a primary pipe system having primary pipes connected by a connection point having a valve, said secondary containment system comprising:

• longitudinally divided first and second shells larger than and disposed around the connection point of the primary pipes;
• each shell having longitudinally extended edges on opposite sides and arcuate openings at opposite ends;
• a sealing gasket having arcuate end portions connected by longitudinally extending strips;
• and
• a series of removable clamps for clamping the edges of the first and second shells together, with the sealing gasket sandwiched between the two shells, the arcuate end portions of the sealing gasket serving to seal around the pipes and the longitudinally extending strips mating with the longitudinally extending edges of the first and second shells;
• and
• a valve extension adapter extending through one of the shells, the valve extension adapter being configured to move the valve;
• and
• wherein the sealing gasket includes arcuate end portions connected by longitudinally extending strips, the arcuate end portions being configured to engage outer surfaces of pipes in the primary piping system, the strips being sandwiched between edges of the first and second shells;
• and wherein the arcuate end portions of the sealing gasket are split and have interlocking ends.