All four short milk tubes meet at the claw piece, and from there the milk mixes and goes into the '''long milk tube'''. All the long milk tubes from each individual cluster contribute to the milk transfer line which delivers the milk to the '''receiver vessel'''. Some parlours may have more than one receiver vessel. The location of the milk transfer line is important as this determines the vacuum level required to move the milk. In a '''low line parlour''', the milk transfer line runs below the level of the udder and requires a lower vacuum level of 38-40kPa. This compares to a '''high line parlour''' which has the milk transfer line above the level of the udder. In this scenario, extra energy is required to life the milk to this level so a greater vacuum is required at somewhere around 46-50kPa. Once the milk reaches the receiver vessel, often another smaller vacuum pump is present known as a '''milk pump''' to transfer the milk from the receiver vessel to the bulk tank. This pump is triggered when the milk level in the receiver vessel reaches a pre-determined level. | All four short milk tubes meet at the claw piece, and from there the milk mixes and goes into the '''long milk tube'''. All the long milk tubes from each individual cluster contribute to the milk transfer line which delivers the milk to the '''receiver vessel'''. Some parlours may have more than one receiver vessel. The location of the milk transfer line is important as this determines the vacuum level required to move the milk. In a '''low line parlour''', the milk transfer line runs below the level of the udder and requires a lower vacuum level of 38-40kPa. This compares to a '''high line parlour''' which has the milk transfer line above the level of the udder. In this scenario, extra energy is required to life the milk to this level so a greater vacuum is required at somewhere around 46-50kPa. Once the milk reaches the receiver vessel, often another smaller vacuum pump is present known as a '''milk pump''' to transfer the milk from the receiver vessel to the bulk tank. This pump is triggered when the milk level in the receiver vessel reaches a pre-determined level. |