Caravan pressure limiting valves with inbuilt check valves are essential components used to regulate water pressure and prevent backflow in caravan and RV plumbing systems. Designed to maintain a safe and consistent pressure—typically 350kPa—they protect hot water systems and other fixtures from damage caused by high water pressure. These valves feature standard 1/2" BSP female threads and are made from durable DR brass, ensuring long-lasting performance. Available in both 95mm and 112mm lengths, they are compatible with a wide range of caravans, including older and newer Jayco models, and meet Australian Watermark certification standards for quality and safety.
Besides the standard range of caravan pressure limiting valves, All Plumbing Online now offers external check valve or external ball valve options to address complaints of the tiny inbuilt check valve clogging up over time. By having 2 separate valves, this allows for easy disassembly to clean and replace individual parts. Parts can also be mixed and matched and 500kPa options become available too.
Furthermore, pressure reduction valve is now available too in the place of the pressure limiting valve, which is both more durable and enables for pressure adjustability to account for the low camp site water supply pressure.
