PVC Female Overflow 40x50

PVC Female Overflow 40x50 (Reference: 100395) is a specialized fitting designed to equip your water storage installations with a reliable drainage system. This technical component ensures protection of your tanks against overflows while maintaining perfect sealing. Made from high-quality PVC, it meets the requirements of both individuals and professionals.

Applications and Benefits

This female PVC overflow finds its place in numerous water storage configurations. It effectively equips 1000L IBC tanks, rainwater collection cisterns, agricultural reservoirs and retention basins. Its female design allows direct connection with standard drainage pipes.

For individuals, it secures domestic rainwater collection installations by preventing any risk of overflow. Construction professionals use it on construction sites to equip temporary reservoirs, while farmers integrate it into their irrigation systems to control water levels in storage tanks.

Its dual 40mm and 50mm compatibility offers maximum flexibility when designing drainage networks. This versatility avoids sizing errors and simplifies stock management for professional installers.

Technical Specifications and Materials

The fitting consists of three essential elements: a smooth female PVC sleeve compatible with 40/50mm, a flat gasket ensuring sealing and a PVC nut for mechanical fixing. This modular design facilitates installation while guaranteeing durable sealing.

The PVC used presents excellent resistance to UV, thermal variations and corrosion. Its specific formulation gives it exceptional longevity even outdoors. The material maintains its mechanical properties in a temperature range from -10°C to +60°C.

The supplied flat gasket is sized to ensure perfect sealing on smooth or slightly textured walls. Its flexibility allows compensation for surface micro-irregularities while maintaining constant pressure. The PVC nut offers progressive tightening without risk of over-stress.

Installation and Implementation

Installing the overflow requires precise drilling of the tank wall. Use a hole saw suitable for the exact diameter of the sleeve to obtain a clean and calibrated hole. The quality of drilling directly conditions the effectiveness of sealing.

Position the flat gasket on the inside of the tank, then insert the female sleeve into the opening. Screw the PVC nut on the outside while gradually tightening to uniformly compress the gasket. Hand tightening followed by a quarter turn with a wrench is generally sufficient.

For pipe connection, use specific PVC cement. Clean and degrease contact surfaces, apply cement uniformly and fit firmly. Respect the setting time indicated by the cement manufacturer before filling with water.

The positioning height of the overflow determines the maximum water level in the tank. Provide a safety margin of 10 to 15cm below the top edge to avoid any overflow during rapid filling.

Expert Tips and Optimizations

To maximize the efficiency of your installation, orient the overflow outlet toward a drainage area or existing drainage network. Avoid 90° elbows that reduce drainage flow and favor 45° fittings or gentle curves.

Association with a non-return valve can be wise if your installation is connected to a collective network. This accessory prevents water or odors from rising back into your storage tank.

For seasonal installations, remember to drain the pipes before frost periods. Although PVC resists low temperatures, frozen water can cause cracking through expansion.

When using on food-grade tanks, check compatibility of cements and gaskets with food contact. Multitanks offers a complete range of certified accessories for these specific applications.

Professionals recommend installing multiple overflows on large tanks to distribute drainage flows. This redundancy improves safety and reduces hydraulic stress on each fitting.

Technical Characteristics