Detailed Product Description Product DescriptionForged Steel Needle Valve Size:1/2 "-4" Pressure:Class150LB-2500LB Material:A105,LF2,F304,F316,F304L,F316L Design & Manufacture Std.:API608,ASME B16.34 Threaded End:G, NPT, BSP, BSPT, DIN259/2999 Mounting pad:ISO5211 Test Standard:API598 Operated way:Handwheel