In line fluid sampling port

A fluid sampling port for a housing through which fluid flows, the housing having an inlet and outlet defined in opposite sides to establish an elongated flow path through the housing with the housing defining an opening communicating with the flow path through the housing, the sampling port comprising;

• a cylindrical resilient valve body having a normally closed, through, axial slit and having an upper portion with a top surface and a reduced section lower portion with a bottom flange that is sized to rest on said housing surrounding and closing the opening in said housing and a shoulder defined between the upper portion and the lower portion;
• a planar disc securing member defining a central opening and having an upstanding rim surrounding its central opening of the same diameter as the reduced section of the resilient valve body for mounting in registry with the opening in the housing;
• said resilient valve body inserted into the central opening of the planar disc securing member with its upper portion above the planar securing member with the upstanding rim bearing against the shoulder between the upper portion and the lower portion reduced section of the resilient valve body and with the bottom flange and lower portion below the planar disc securing member;
• said planar disc securing member clamping the flange of the valve body to the housing and sealing the opening in the housing;
• with the upper portion of the valve body protruding upwardly through the central opening in the planar disc securing member;
• whereby a needleless connector can be introduced into the normally closed slit of the resilient valve body to stress the resilient valve and force it into the housing to establish a sampling port for withdrawal of a fluid sample.