ANKA Foot Valves are spring loaded and can be installed at any angle. They come complete with a filter cage which can be taken off. Foot Valves are used at the suction end of pump lines to prevent loss of water. Manufactured of glass fibre reinforced nylon body with BSPT threads, includes 316 stainless steel spring, acetyl plunger, nitrile rubber seat and O-ring, and polypropylene filter cage. Maximum Working Pressure is 16 bar (1600 psi - 230 psi) @ 20°C.