NEEDLE VALVE GAYATRI's needle valves are especially suitable where both a reliable cut and a steady fluid flow are required. They have been designed to satisfy multiple industrial applications: Back-seat valves (CP-01, CP-12), compact design integral bonnet valves (CP-15), gas valves with no-maintenance required (RG-90) and the strongest valves, capable of withstanding the harshest conditions (CP-20) or the most corrosive environments (AC-02).