| 摘要 |
A push-fit connector for connecting a fluid supply to a body 16 comprises a tubular spigot 12 for connecting to the end of the pipe and a bore 14 in the body 16 for receiving the spigot 12. The spigot is a stepped cylinder having two axially spaced regions 22, 24 of different outside diameter, each region being formed with an annular groove 26, 28 receiving an O-ring 30, 32. The bore is a stepped bore 14 having two axially spaced sections 40, 42 of different inside diameter for receiving the regions of the spigot. The O-rings 30, 32 form axially spaced fluid-tight seals between the spigot 12 and the bore 14. The mouths of the two sections 40, 42 of the stepped bore 14 can be spaced apart by a distance that exceeds the length of the smaller diameter region of the spigot 12, and that is less than the distance between the O-ring receiving grooves 26, 28 in the different diameter sections of the spigot 12. The mouths of the sections of the bore 14 can be chamfered to assist in compressing the O-rings 30, 32 during insertion of the spigot 12 into the bore 14. |
