Kosan Industries Pvt. Ltd. Manufactures Hand Wheel Operated LPG Cylinder Valve. Kosan Industries Pvt. Ltd. Is an ISO 9001:2000 registered company. Kosan Industries Pvt. Ltd. Is the supplier of valves and regulators of LPG in India. Hand Wheel Operated LPG Cylinder Valve is a screw on type valve which is provided with a ferrule. Hand Wheel Operated LPG Cylinder Valve is also available in ring type or non-repairable type.