Brass spring non-return valves are use to prevent back-flow, back siphoning and cross contamination of water supplies. Ideal for use as pump foot valves (with a suitable filter) or on pump manifolds due to the cone-shaped design of the internal valve disc, ensuring a smoother flow than a flat disc. They have female BSP threaded connection either end.

NB. There are legal requirements regulating water installations in domestic, commercial and heath care premises. These requirements make it a criminal offense for any person, whether owner or occupier, to allow the wholesome (potable) water supply within their premises to become contaminated, wasted, misused or unduly consumed.