Flanged Needle Valve Flanged Needle Valve Flanged needle valve is that needle valve with flange connection end. Request a Quote Flanged Needle Valve Introduction 1. Working pressure: ≤ 16MPa;Service temperature: – 29 ℃ ~ + 570 ℃;Specification and size: dn10 ~ DN25;Connection type: flange type;Structural features: conical seal;Valve body material: carbon steel, stainless steel;Applicable media: corrosive and non corrosive media such as water, oil and gas;Manufacturing standard: ASME B16.34;Valve inspection and test standard: API 598;