Appliance for drawing in and delivering a fluid, especially a liquid

摘要

The addition relates to the general technical area of pumping devices. The appliance has at least one indexing device 2c-2d capable of interacting with at least one complementary part 1e-5 formed directly on or attached to the female tubular element 1 being shaped to ensure blocking of the tube 2 heightwise as required according to a position corresponding to a predetermined and calibrated quantity of the product to be sampled. <IMAGE>