CPC F16L 29/02 (2013.01) [F16L 41/16 (2013.01)] | 12 Claims |
1. A connection fitting (102) for detecting operating pressures of fluid media, comprising:
an opening pin (114) with a substantially circular, closed contact surface for a spring-loaded and mechanically actuatable non-return valve (32), said valve (32) having a valve body (18) that is supported on a valve seat (52) when in a non-actuated state, said valve (32) being arranged in a drilled hole (10) of a connecting part (16) of a coupling bushing (6) which is under operating pressure,
wherein the opening pin (114) has at least one passage hole (118) which runs laterally to the contact surface and through which a connection between the connection fitting (102) and a valve coupling or measuring coupling (2) for fluid systems can be established;
wherein the connection fitting (102) is configured to be screwed onto a connecting part (16) of the valve coupling or measuring coupling (2),
wherein the valve coupling or measuring coupling (2) comprises a sealing ring (50) that is arranged in a groove (44) of the valve body (18), and
wherein the groove (44) has a trapezoidal cross section that tapers in the radial direction.
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