Watts / Socla Flanged RPZ Valve with Isolation Valves, Strainer & Tundish

Watts / Socla Flanged RPZ Valve with Isolation Valves, Strainer & Tundish

Watts / Socla

Watts / Socla is a globally recognised manufacturer of valves and flow control solutions, supplying reliable products for plumbing, HVAC, water distribution, industrial, and process applications. With a strong reputation for quality engineering and dependable performance, the brand is known for producing durable, high-quality components designed to meet the demands of commercial and industrial systems. Watts / Socla products are widely specified across a broad range of applications where long service life, efficient operation, and consistent reliability are essential.

Key Information

The Watts / Socla flanged RPZ valve assembly with isolation valves, strainer, and tundish is designed to provide advanced backflow prevention and contamination protection for potable water systems. Engineered to protect drinking water networks against Fluid Category 4 risks in accordance with EN1717 and EN12729 standards, the valve prevents contamination caused by back pressure or back siphonage, helping to maintain the integrity and safety of water supplies.

Manufactured with a durable epoxy coated cast iron body, the assembly incorporates two independent check valves with an intermediate reduced pressure zone and integrated relief valve. In the event of backflow or internal contamination, the relief valve automatically discharges to atmosphere via the tundish, providing reliable protection between the potable water supply and downstream systems.

The complete assembly includes upstream and downstream isolation valves together with a strainer, simplifying installation and maintenance while helping to protect the internal components from debris. Modular internal sub-assemblies and removable check valve components allow for easier servicing, reduced downtime, and simplified maintenance procedures.

Designed for use in demanding commercial, industrial, and technical applications, the RPZ valve is commonly specified for hospitals, laboratories, water treatment systems, heating and air conditioning installations, irrigation networks, fire protection systems, and industrial process applications where reliable backflow prevention is essential.

Suitable for horizontal installation, the valve features flanged connections to EN1092 standards and is rated for operating pressures up to 10 bar with temperatures up to 65°C. High-quality internal materials including stainless steel springs, EPDM/silicone seals, and bronze or PPO seating components ensure dependable long-term performance in critical water protection systems.