High Pressure Series Severe Service Needle Valves

Hex bar stock body construction. Union bonnet or screwed bonnet connection. metal to metal or stellited seat for high pressure. Stem threads rolled and hard plated and tip stellited to prevent galling and extend life. Two-part stem tip arrangements. Packing below stem thread and non-rotating ball tip ensure bubble tight shut-off. Variety of end connections include male or female threaded NPT, BSP, ISO, DIN and JIS tapered pipe ends. One-piece body, without welds. Maximum Working Pressure: 6000 PSI (400 bar) at 200H. 10000 PSI (700 bar) at 120H. Each valve is tested with nitrogen gas at 1200 PSI (80 Bar) for leakage at seal and seat. Hydrostatic tests are performed with pure water at 1.5 times maximum working pressure. Optional tests including helium and temperature are available upon request.