794 npt threads needle valve products are offered for sale by suppliers on Alibaba.com, of which needle valves accounts for 79%.
A wide variety of npt threads needle valve options are available to you, such as pressure, manual and pneumatic.You can also choose from normal temperature, medium temperature and high temperature npt threads needle valve,as well as from water, gas, and oil npt threads needle valve, and whether npt threads needle valve is steel, stainless steel, or iron.