Description
Double Block and Bleed(DBB) Top Entry Ball Valve Conform to API 6D 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 Reduce Port |
| - One Piece Body |
| - Top Entry |
| - Floating or Trunnion Mounted |
| - Bolted Bonnet with spiral-would gasket |
| - Fire Safe Design |
| - Anti-static Design & Blow-out proof stem |
| - Screwed Ends to ASME B1.20.1 |
| - Socket Weld Ends to ASME B16.11 |
| - Butt Weld Ends to ASME B16.25 |
| - Flanged Ends to ASME B16.5 |
2. Main Part & Materials | Part Names | Part Materials |
| Body | WCB/A105 | LCB/LF2 | WC6/F22 | CF8/F304 | CF8M/F316 | CF3/F304L | CF3M/F316L |
| Bonnet | WCB/A105 | LCB/LF2 | WC6/F22 | CF8/F304 | CF8M/F316 | CF3/F304L | CF3M/F316L |
| Ball | A105+ENP | SS304 | F22 | SS304 | SS316 | SS304L | SS316L |
| Stem | A105 | F304 | F6a | F304 | F316 | F304L | F316L |
| Seat/Seat Ring | PTFE/PPTFE/NYLON/DEVLON/PEEK OR METAL |
| Packing | Graphite/PTFE |
| Gasket | SS304+Graphite/SS304+Graphite |
| Bolts/Nuts | B7/2H | L7/4 | B16/4 | B8/8 | B8M/8M | B8/8 | B8M/8M |
| Suitable Medium | W.O.G etc. | HNO3, CH3OOH etc. |
| Suitable Temperature | -29~425 °C | -46~340 °C | -46~340 °C | -196~427 °C | -196~427 °C | -196~427 °C | -196~427 °C |
3. Normal Pressure RatingPN10~PN420, CLASS150~2500
4. Normal Size RangeDN15~DN600, 1/2"~24"
5. PicturesFinal Inspection
Shipment
Complaint
