Main Diaphragm Cover for Servac/Gascoigne Melotte Vacuum Regulator The Main Diaphragm Cover for Servac/Gascoigne Melotte Vacuum Regulator is a replacement component designed to correspond with compatible Servac and Gascoigne Melotte vacuum regulators used within dairy milking vacuum systems. The cover forms part of the regulator assembly and helps locate and protect the main diaphragm during operation. The Main Diaphragm Cover for Servac/Gascoigne Melotte Vacuum Regulator is suitable for replacing an existing cover that has become cracked damaged distorted or worn through regular use. The diaphragm is an important part of the vacuum regulator mechanism so the surrounding components must remain correctly positioned to allow the regulator to respond accurately to changes in system vacuum. This replacement cover is particularly useful during vacuum regulator servicing repairs and refurbishment . When dismantling the regulator it is also advisable to inspect the condition of the main diaphragm seals and associated internal components for signs of wear or deterioration. Replacing individual service parts can help restore reliable regulator operation without requiring replacement of the