Dairymaster ACR relay diaphragm disc The Dairymaster ACR Relay Diaphragm Disc is a genuine Dairymaster replacement component designed to deliver reliable pneumatic performance within your automatic cluster removal (ACR) relay system. This precision-moulded diaphragm disc ensures smooth and accurate air control, allowing the ACR unit to respond precisely when clusters need to be detached — improving milking efficiency and protecting teat health. Manufactured from high-quality, flexible, and chemical-resistant materials , the diaphragm disc provides excellent durability and airtight sealing, even under constant use in demanding dairy environments. Its precision-engineered fit ensures consistent performance, maintaining vacuum stability and optimal air pressure across the ACR system. When installed correctly, the diaphragm disc helps your system to: Maintain accurate air pressure for reliable ACR function Deliver smooth and consistent cluster removal Prevent air leaks that could reduce vacuum efficiency Enhance cow comfort by ensuring gentle detachment timing Extend the service life of ACR components through stable operation Key Features: Genuine Dairymaster replacement part Designed