Disadvantage exists needle valve

Disadvantage exists needle valve
(1) easy to damage, especially easy to turn the valve head.
(2) because of the small structure, small channels, it is easy to be blocked.
With cut-off valve should pay attention to the mounting direction of the needle valve installation. And medium flow must coincide with the stainless steel needle valves is installed to maintain the packing at the needle valve closed when not affected by media pressure and leakage. In connection with the fermentation tank installation. We must pay attention to the fermentation tank being installed, to prevent the broth from the packing seal leakage and contamination.
Industrial production in the fermentation process, the needle valve is widely used in fuel control valve, red depending on the mirror steam valve, the steam control valve manifold material, the air blowing port on each valve, as well as sampling tubes on each control valve. These places need both easy maintenance and replacement, at the same time they need to withstand high temperatures and pressure. Controlling the flow rate, the valve flow. Needle valve just adapted to these requirements.