Siphon drain (water) cock in accord with TU U24607422.13-2000 is intended for discharge of tank water and bottom heel of oil product from the tank.

Siphon drain cock is mounted on the first ring of the tank in the place provided by design documentation.

The cock KC-50c is installed on tanks of up to 5000 cub. m capacity, whereas the cock KC-80 is provided on tanks of more than 5000 cub. m capacity.

Design and basic dimensions of siphon drain cock KC-50c (80c) are shown in Table and in Figure.

As the lock-up devices, the cocks meant for operation in the environment of light oil products and specified in the contract order.