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Home > Needle Valves > 400 Series Hard Seat Needle Valves > Product Specifications
400 Series Hard Seat Needle Valves
Product Specifications
| SPECIFICATIONS | |
| Materials | Electroless nickel plated steel, electropolished stainless steel |
| Connections | 1/4", 3/8", 1/2", 3/4", 1", 1¼ & 1½ NPT 7/16"-20 UNF-2B (#4 SAE, J1926-1) M-F, F-F, in-line and angled configurations |
| Pressure Ratings | 10,000 psi @ 200°F |
| Orifice Size | 402-404: 0.187" 406-412: 0.438" |
| Flow Coefficient | 402-404: 0.44 406-412: 2.70 |
| Steam Seal & Type | All 316 stainless steel stems with Viton® O-Ring and Teflon® back up ring below the threads, Teflon® or Grafoil® packing optionsl |
All NOSHOK Valve Products conform to MSS SP-99 Instrument Valves Standards, and valves supplied with packing also conform to MSS SP-132 Compression Packing Systems for Instrument Valves Standard.