high pressure needle valve with weld end,Thread:NPT,BSPT,UNEF,PT Material SS316, SS304 Size 1/ ... 8" to 2" OD Features for weld end needle valve : Working Temp0-250degreeTesting Pressure42(MPa)Testing Pressure60(MPa ... handle.2. Metal-to-Metal Seal, Harden treatment to prevent high temp 2. Packing Cap realize packing outside.3. Flat Plate ...