API 599 Full or Reduced Bore Plug Valve
Product Range
Sizes: NPS 2 to NPS 60
Pressure Range: Class 150 to Class 2500
Flange Connection: RF, FF, RTJ
Materials
Casting: (A216 WCB, A351 CF3, CF8, CF3M, CF8M, A995 4A, 5A, A352 LCB, LCC, LC2) Monel, Inconel, Hastelloy,UB6
Forged (A105, A182 F304, F304L, F316, F316L, F51, F53, A350 LF2, LF3, LF5,)
Standard
| Design & manufacture | API 599, API 6D, ISO 14313 |
| Face-to-face | ASME B16.10,EN 558-1 |
| End Connection | ASME B16.5, ASME B16.47, MSS SP-44 (NPS 22 Only) |
| - Socket Weld Ends to ASME B16.11 | |
| - Butt Weld Ends to ASME B16.25 | |
| - Screwed Ends to ANSI/ASME B1.20.1 | |
| Test & inspection | API 598, API 6D |
| Fire safe design | API 6FA, API 607 |
| Also available per | NACE MR-0175, NACE MR-0103, ISO 15848 |
| Other | PMI, UT, RT, PT, MT |
Design Features
1. Full or Reduced Bore
2. RF, RTJ, or BW
3. Sleeve Type or Pressure Seal Balance
4. 2 Way, 3 Way, 4 Way
API599 plug valve is a rotary valve with a closing piece or a plunger shape. By rotating 90 degrees, the channel port on the valve plug and the channel port on the valve body are connected or separated to realize opening or closing.
The shape of its valve plug can be cylindrical or conical. In cylindrical valve plugs, the channels are generally rectangular; in conical valve plugs, the channels are trapezoidal. These shapes make the structure of the plug valve lighter. It is most suitable as a cut-off and connection medium and shunt, but depending on the nature of the application and the erosion resistance of the sealing surface, it can sometimes be used for throttling.
According to the structure, it can be divided into four types: tight-fitting plug valve, self-sealing plug valve, plug valve and oil injection plug valve. According to the channel form, it can be divided into three-way plug valve, three-way plug valve and four-way plug valve. There is also a compression plug valve.
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