Abstract: A flat-face coupler assembly for releasably coupling a fluid conduit and operative to release residual fluid pressure when disconnected from the conduit. The coupler includes a housing having a central stem centrally located having at least one end fixed in order to inhibit relative movement between the central stem and the coupler housing. The central stem defines a flat-face on a distal end that is engageable with a nose member of a male fitting. A tubular stem seat is supported for reciprocal sliding movement that at least surrounds a portion of the central stem and movable between at least two positions. In one position, the tubular stem engages the central stem in order to block communication between a port that communicates with the male fitting, and a main fluid chamber defined at least partially between the tubular stem seat and central stem. In this one position, the main chamber is also communicated with drain.

Abstract: A decompression block assembly for coupling a source of hydraulic pressure to a hydraulically operated attachment. The assembly includes a valve body defining first and second ports that are fluidly connected to first and second couplers that are connectable to hoses of the attachment. The valve body includes a shuttle chamber having an opposed valve seats and a valve element engageable with the valve seats depending on residual pressure in fluid passages. A release member is operable to connect the shuttle valve to a drain port to discharge residual pressure in one or both fluid passages communicating with the attachment. The release member, when operated, opens a check valve in order to discharge residual pressure.