Equipped with a nitrile rubber O-rings seal, this needle valves ensuring a connection that significantly minimizes the risk of accidental leakage The valves features a knob, crafted to facilitate precise setting of flows rates This hydraulic needle valves showcases an opening pressure of 7.25PSI and a maximums flows rating of 40L/Min, ensuring adaptability across various hydraulic setups and applications This needle valves is make of brass and zinc alloy to ensuring durability. Supports long-term use and reduces the need for frequent maintenance This hydraulic flows control needle valves incorporates a versatile 1/2inch or 3/8inch port, designed to regulate flows efficiently in Single Direction, whilst also offering the capability to shut off flows when necessary, Manufacturer: Oxxggkao