Threaded needle valve

First, the internal thread the needle valve Product Overview Haichuan Shanghai Valve Co., internally threaded needle valve is a valve can be accurately adjusted, wider use, such as flame cutting with the cutting distance, the flame temperature adjustment knob is pin type valve. Instrumentation needle valve instrument measuring pipeline system is an important part of the main shut-off valve and ball valve, its function is turned on or off for the pipeline path available. The valve needle valve is a very sharp cone, as if the same needle is inserted into the valve seat, hence the name. See: http: //www.zgchuanhu.com/shoudongzhenxingfa/zhenxingfa-j13w.html