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| Specification | NPS 2-56(DN150-1400) |
| Pressure rating | Class 150~2500（PN16~420） |
| Basic materials | ASTM A105,A350 LF2,A182 F304,A182 F316,A182 F6A,A182 F51,A182 F53,A182 F55,A564 630(17-4PH),Monel，Inconel. |
| Surface treatment | Electroless nickel plating, hard chromium, tungsten carbide, chromium carbide, Stellite, Inconel, special materials |
| Support type | Support plate |
| Drive | Rectangular groove |
| Circularity | 0.02-0.04 |
| Roughness | Ra0.2-Ra0.4 |
| Concentric circle | 0.05-0.10 |
| Packing | Wooden case, pallet, container |
| Apply to | Large and medium-sized industrial ball valves in the fields of petroleum, natural gas, water treatment, pharmaceutical and chemical industry, heating, etc |
| Can be produced according to the design and size provided by customers | |
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