Performance specification
| Design and manufacture | API6D |
| Structural length | ASME B16.10 |
| Flange standard | ASME B16.5 |
| Butt welding end connection | ASME B16.25 |
| Inspection and testing | API598 |
| Nominal pressure | 150 | 300 |
| Test pressure | Shell test | 3.0 | 7.5 |
| High pressure seal | 2.2 | 5.5 |
| Low pressure seal | 0.4~0.7 |
| Applicable temperature | ≤425℃ |
| Applicable medium | Water, steam, petroleum, |
Major Component Materials
| Body, bonnet, gate | ZG1Cr18Ni, 9TiCF8(304), CF3(304L), ZG1Cr18Ni12Mo2Ti,CF8M(316) |
| Sealing surface | Noumenon(W),Cemented carbide(Y) |
| Stem | 1Cr18Ni9Ti, 0Cr19Ni9(304),2Cr13, 00Cr19Ni11(304L),1Cr18Ni12Mo2Ti, 0Cr17Ni12Mo2(316) |
| filler | Flexible graphite |
| Shim | Stainless steel winding gasket |
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