Detailed Product Description Needle Valve needle valve professional manufactuer,forged SS or CS material,high pressure and leakage-proof,long life,reliable quality. Features: 1. Nominal pressure: 3000PSI,6000PSI. 2. Nominal diameter: 1/4",3/8",1/2",3/4",1"...2" 3. Applicable medium: W.O.G.,and some corrosive medium. 4. Applicable Temperature: PTFE packing ,Graphite Packing. 5. Materials: A105,SS304,SS316,strictly comforms to NACE MR-01-