3/8" 600 WOG ball valve 5 psi natural gas/150 psi steam. Maxitrol ball valves are designed primarily for gas, water, oil, and steam applications. They have a forged brass body, hard chrome plated ball, anticorrosion Dacromet-treated handle, and female NPT inlet and outlet. Suitable for natural and manufactured gas, fuel oil No. 1-6 (260°F), air, acetylene, nitrogen, carbon dioxide, and inert gases.