Needle Valve is a kind of can accurate adjustment valve, use a wide, such as flame cutting with cutting distance, it is used in adjusting the flame temperature knob. Instrument needle type valve is an important part of instrumentation piping system basically include the globe valve and ball valve, its function is used for opening or shutting off pipeline path, disc for needle valve is very pointed cone, as the same as the needle type plug into the seat, hence the name

The type of connection for the needle valve include the FNPT NPT, sleeve, etc.

Needle valve owned installed, remove convenient, connection fastening, its advantage's is beneficial to the prevention of fire, explosion and high pressure ability, the good seal performance, it is an advanced mode of connection of valve used for power station, oil refining, chemical industry equipment and instrument measuring line. Needle type valve sealing is good, long service life, even after sealing surface damage, and only needs to replace vulnerable parts, can continue to use. installation needle type valve should make medium flow in direction of arrow on valve body. Manual cut-off valve, ball valve can be installed in the line of any position. Needle type valve is a kind of can accurate adjustment valve, it uses a wide, such as flame cutting with cutting distance, adjust the flame temperature knob.