BM40F Liner Vented (Pack of 4) The BM40F Liner Vented is a high-quality milking liner designed to deliver reliable and consistent performance in compatible milking systems. Manufactured to precise specifications, these liners help support efficient milk extraction, stable vacuum levels, and smooth pulsation during the milking process. Featuring a vented design , the BM40F Liner Vented allows controlled air admission during milking. This ventilation helps maintain balanced vacuum conditions within the cluster, improving liner movement and supporting consistent milk flow. Proper vacuum balance also contributes to effective teat massage and enhanced cow comfort throughout the milking cycle. The BM40F Liner Vented has an orifice diameter of 23.0mm and a total length of 301mm , ensuring a secure fit within compatible cluster shells. Correct liner sizing is essential for maintaining efficient cluster performance and ensuring the liner operates as intended during milking. Manufactured from durable materials designed for demanding dairy environments, the BM40F Liner Vented is built to withstand daily milking routines and repeated wash cycles. Its robust construction supports long service l
