Ball valves.

http://www.yateson-stainless.com/yateson03.htmhttp://www.yateson-stainless.com/yateson03.htm

Scroll down the centre panel for some pdfs.

Watch out for the opening torque ratings for these ball valves ...youll need a DECENT actuating ram to get the valve to open QUICKLY!

http://www.valves-online.co.uk/acatalog/Three_Way_Ball_Valve.htmlhttp://www.valves-online.co.uk/acata...all_Valve.html

(Message edited by woody on October 26, 200