The ability to control the flow rate of fluids and/or to combine several fluids in a perfectly controlled manner is critical to most chemical manipulations, as well as medical applications. Our company has developed various mechanisms able to achieve such tasks with great precision. These devices, as well as the validation and quality tests listed hereafter were designed in our offices. Manufacturing and assembly are performed at our production facilities. The products are delivered with specific control and test protocols designed in collaboration with each customer to meet high end certification requirements.