| 摘要 |
A nipple for a coaxial coupling, the nipple comprising a housing 40, and a nipple tube 30 arranged in the housing 40. The nipple comprises a first passage 42 between the housing 40 and the nipple tube 30, and the nipple tube 30 comprises a second passage 32 within the nipple tube 30. A relief valve 20 is slideably arranged in the nipple tube 30, the relief valve 20 comprising sealing means 24, 26 for sealing against the nipple tube 30. The nipple tube 30 further comprises a relief passage 34, the relief passage 34 forming a fluid passage between the first passage 42 and the second passage 32. The relief passage 34 being arranged so that the sealing means 24, 26 seals the relief passage (34) when the nipple is fully coupled. The coupling may furthermore be attached to a swivel component (300) comprising first (100) and second parts (300), the swivel further comprising first (120) and second (130) fluid channels for supply and return fluids (see fig 7). |
