Rotating the handle needle valve
2016-07-12 14:31:56
Rotating the handle needle valve is a precise adjustment of the valve, wider use, such as flame cutting by cutting away, the flame temperature adjustment knob is a rotary knob needle valve. Rotating the handle instrument needle valve instrument measuring pipeline system is an important part of the main shut-off valve and ball valve, its purpose is to make open or cut off the pipeline pathway used. Spool rotation handle needle valve is a very sharp cone, as if the same needle is inserted into the valve seat, hence the name.
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