MK5 NRV Service Kit The MK5 NRV Service Kit is a replacement service kit designed for compatible MK5 non-return valve assemblies used in dairy parlour, wash or liquid handling systems. It provides the service parts needed to refresh the valve, helping maintain reliable one-way flow and reduce the risk of backflow during daily operation. Non-return valves help keep liquid or air moving in the correct direction through the system. Over time, seals and internal service parts can become worn, hardened, split or affected by pressure, heat, cleaning chemicals and regular wash cycles. Replacing these components with the MK5 NRV Service Kit helps restore dependable sealing, supporting smooth flow control and reducing avoidable faults in the wider setup. This kit is useful for farms and service teams carrying out planned maintenance, repairs or fault finding on compatible MK5 NRV assemblies. It is especially helpful where the valve body remains serviceable, but the internal parts need replacing to improve valve response and sealing. Servicing the valve can be a practical way to maintain system performance without replacing the full assembly. The MK5 NRV Service Kit is a reliable option for