FLUID COUPLER FOR USE IN THE TRANSFER OF LIQUEFIED GASES

摘要

A fluid coupler (50) connectable with a fitting (10) of a variety which extends from an externally-threaded forward coupling end to a rearward port end. The coupler includes a body having an internal fluid passageway and valve stem (60). A valve sleeve (80) is received coaxially over the valve stem to define a fluid flow path therebetween. The valve sleeve (80) is biased in a rearward first position wherein the second end thereof is received within the seating portion of the valve stem closing the fluid flow path and is movable to a forward second position opening the fluid flow path. A coupling nut member (108) is mounted over the coupling end of the valve body to be threadably engageable with the coupling end of the fitting for drawing the seal (104) into a fluid-tight adjacency with a land portion (42) of the fitting moving the valve sleeve from the first to second position, and for drawing the rearward surface of the valve stem into an abutting engagement with the poppet valve of the fitting which opens the valve.