Compatible Delaval Diaphragm 56mm HP87 SAC 12328 The Compatible Delaval Diaphragm 56mm HP87 SAC 12328 is a precision-engineered replacement part designed to restore smooth, accurate pulsation in DeLaval HP87 pulsators and SAC systems using part number 12328. Manufactured to closely match original performance, it delivers responsive vacuum switching that supports consistent milk flow, calm milking behaviour, and good teat condition throughout every milking. Pulsation reliability is critical to milking efficiency and cow comfort. When a diaphragm becomes worn, cracked, or sluggish, pulsation can weaken or become uneven, leading to liner slip, slower milk-out, increased noise, and unnecessary stress on the udder. Fitting the Compatible Delaval Diaphragm 56mm HP87 SAC 12328 restores correct pulsation timing and stability, helping protect milk quality and maintain consistent parlour performance. Made from durable, dairy-grade materials , this diaphragm is built to withstand constant cycling, hot wash routines, and the daily demands of busy milking systems. Its flexibility ensures accurate movement over time, while the precise 56mm design allows it to integrate smoothly into existing pul
