The Pneumatically Actuated Two-Way Ball Valve by ASCO is a 1/4 inch NPT brass body valve with a stainless steel ball and stem. It has a maximum pressure rating of 150 psi and temperature rating of -20 to 180 degrees Fahrenheit. This normally closed valve shifts positions when approximately 60 psi of air pressure is applied. It can be used to control the flow of air, water, oil and inert gas in automation applications. The valve shifts from closed to open when pressure is applied, and returns to closed when pressure is removed.