TOP-FLO® SV2 In-Line Sample Valves are specifically engineered to be the finest in the industry and incorporate many features and benefits not found on other sampling valves. Low profile valves provide minimum dead leg areas and positive shut-off for sensitive fluids. Valves are available with butt weld or sanitary clamp end connections with hose barb discharge as standard. Standard connection sizes are 1/2” – 6” clamp end.