Antidrainsbackväxlar
Antidrainsbackväxlar, often translated as anti-drainback valves or features, are common components in lubrication systems, particularly in engines and hydraulic machinery. Their primary function is to prevent the loss of oil or lubricant from the system when the equipment is shut down or at rest. This is achieved by holding a certain amount of oil within the system, such as in the oil filter or oil passages, thereby ensuring that lubrication is available immediately upon startup.
Without an antidrainsbackväxel, gravity would cause the oil to drain back into the sump or reservoir. This
These valves are especially important in applications where the oil filter is mounted above the oil level