Home / Valves / ANA Nylon Disc Brass Spring Check Valve ANA Nylon Disc Brass Spring Check Valve Spring Check Valve also known as Non-Return Valve. Material: Disc & Shaft – Nylon, Spring – Stainless SteelMinimum Pressure: 0.3 bar Size Choose an option15mm (1/2")20mm (3/4")25mm (1")40mm (1 1/2")50mm (2")80mm (3")100mm (4")15mm (1/2")20mm (3/4")25mm (1")40mm (1 1/2")50mm (2")80mm (3")100mm (4")Clear Related products Poly Float ANA 1/2″ Chrome Handle Mini Valve FF CITY Forging Brass Ball Valve PN25 CITY Forging Brass Float Valve MOH C/W Copper Ball VIP 1/2″ Mini Ball Valve MM ANA Aluminium Handle 3-Way Mini Valve MMM