Double Eccentric Butterfly Valve Monel Seat Exchangeable For Petro Chemical
- Availability: In Stock
- Product Model: D372F
Exchangeable Seat Double Offset Monel Seat Double Eccentric Butterfly Valve For Petro Chemical
Two Eccentric Butterfly Valve
The two eccentric shaft/disc design ensures bi-directional sealing throughout the full pressure range of the valve. The cam-like action produced by the eccentric stem and stem, effectively lifts the disc off the seat during the initial opening of the valve, reducing sea wear and eliminating seat deformation at the top and bottom. When the disc is in the open position, there is no contact between the disc and seat. Operating torques are reduced and seat life is extended.
Bill of Material
| NO | Part | Q’ty | Material |
| 1 | Valve Body | 1 | Carbon Steel A216 Gr WCB SS304 A351 Gr CF8 SS316 A351 Gr CF8M |
| 2 | Seat Retainer | 1 | Carbon Steel A216 Gr WCB SS304 A351 Gr CF8 SS316 A351 Gr CF8M |
| 3 | Seat | 1 | PTFE RPTFE Metal |
| 4 | Disc | 1 | SS304 A351 Gr CF8 SS316 A351 Gr CF8M |
| 5 | Disc Pin | 2 | SS304 A276 Tp 304 17-4PH SS316 A276 Tp 316 |
| 6 | Stem | 1 | SS304 A276 Tp 304 SS316 A276 Tp 316 17-4PH A564 G4 630 |
| 7 | Packing Gland | 1 | SS304 A351 Gr CF8 |
| 8 | Packing Follower | 1 | SS304 A351 Gr CF8 |
| 9 | Bottom Cover | 1 | Carbon Steel A576 Gr 1045 SS304 A276 Tp 304 SS316 A276 Tp 316 |
| 10 | Retainer Bolt | 1 set | SS304 A193 Gr B8 SS316 A193 Gr B8M |
| 11 | Stem Bearing | 2 | Stainless Steel & RTFE |
| 12 | Gland Bolt | 2 | SS304 A193 Gr B8 |
| 13 | Packing | 1 set | PTFE/GRAPHITE |
| 14 | Packing Retainer | 1 | Viton |
| 15 | Shaft Retainer | 1 | SS304 A276 Tp 304 SS316 A276 Tp 316 |
| 16 | Bottom Packing | 1 | PTFE |
| 17 | Bottom Bolt | 4 | SS304 A193 Gr B8 |
| 18 | O Ring | 1 | Nitrile |
| 19 | Stem Ball | 1 | Stainless Steel |
Typical Service
Vacuum Service
The bubble tight sealing TEKO double eccentric butterfly valve are excellent for vacuum service. Soft seated standard valves are suitable for vacuum service to 20 microns. Please advise when ordering.
Dead End Service
Lug body for dead-end service are offered as standard. Drilling are fully in accordance with ANSI 150Lb, 300Lb and 600Lb.
Stem Service
Standard valves are ideally suited for saturated steam applications to 120 psig steam (RPTFE seat). Carbon filled TFM seats and high temperature graphite stem packing can handle pressure up to 200 psig steam