For those who like to be equipped - Dr. Valve contains a complete set of square stem caps in all standard sizes. Suitable for all common valves. In the small and handy tool case, the 17 square stem caps made of hot-dip galvanised cast iron are neatly stowed away. They are easily attached to the valve stem or the extension by means of a notched pin or screw.
Complete set with square stem caps in all standard sizes

Channel penstock with rectangular opening, 3-sided sealing

Weir type channel penstock with rectangular opening, 3-sided sealing

Penstock with rectangular opening, 4-sided sealing

Penstock with round base, 4-sided sealing

Weir type penstock, 4-sided sealing

Penstock with flange connection, round opening, all-around sealing

Penstock with bottom for embedding and round opening, all-around sealing

Penstock with round opening, all-around sealing

Large penstock with rectangular opening, 3-sided sealing

Large penstock weir type rectangular opening, 3-sided sealing

Large penstock with rectangular opening, 4-sided sealing

Large penstock with semicircular opening, 4-sided sealing

Large penstock weir type, 4-sided sealing

Penstock with rectangular opening, 4-sided sealing