Hansen Full-Flow* ball valves can be used anywhere the flow of fluid needs to be quickly and directly stopped and started. All valves have BSPT threads. *Hansen Full-Flow valves do not restrict pipe flow when fully open.Hansen Full-Flow* ball valves can be used anywhere the flow of fluid needs to be quickly and directly stopped and started. All valves have BSPT threads. Handles removable without tools. *Hansen Full-Flow valves do not restrict pipe flow when fully open.