Thread, Screw and Flanged Forged Gate Valve with NPT, BPS, RF or RTJ Ends Conform to API 602, BS5352, and ASME B16.34.
They are tested according to API 598, and marked as per MSS SP-25
1. Construction is as follows
| - Full Port or Standard Port |
| - Outside Screw and Yoke(OS&Y) |
| - Bolted Bonnet with spiral-would gasket, threaded and seal welded bonnet and threaded and pressure seal bonnet |
| - Integral Backseat |
| - Loose solid disc |
| - Socket Weld Ends to ASME B16.11 |
| - Butt Weld Ends to ASME B16.25 |
| - Screwed Ends to ANSI/ASME B1.20.1 |
| - Flanged Ends to ASME B16.5 |
2. Main Part & Materials
| Part Names | Part Materials |
| Body | A105 | LF2 | F22 | F304 | F316 | F304L | F316L | B62 |
| Bonnet | A105 | LF2 | F22 | F304 | F316 | F304L | F316L | B62 |
| Disc/Ball/Wedge | A105 | SS304 | F22 | F304 | F316 | F304L | F316L | B62 |
| Stem | A105 | F304 | F6a | F304 | F316 | F304L | F316L | B62 |
| Seat/Seat Ring | 13%Cr | SS304 | 13%Cr | F304 | F316 | F304L | F316L | B62 |
| Packing | Graphite/PTFE |
| Gasket | SS304+Graphite/SS304+Graphite |
| Bolts/Nuts | B7/2H | L7/4 | B16/4 | B8/8 | B8M/8M | B8/8 | B8M/8M | B8M/8M |
| Suitable Medium | W.O.G etc. | HNO3, CH3OOH etc. | Sea Water etc. |
| Suitable Temperature | -29~425 °C | -46~340 °C | -46~340 °C | -196~427 °C | -196~427 °C | -196~427 °C | -196~427 °C | -29~220 °C |
3. Normal Pressure Rating
PN10~PN420, CLASS150~2500
4. Normal Size Range
DN15~DN50, 1/2"~2"