01
API 609 Stainless Steel Triple Offset Butterfly Valve
Specification
Structre type: Triple-eccentric Butterfly Valve
Design standard: API 609
Flange connection dimension: ASME B16.5/16.47
Structure length: API 609
Pressure test: API 598
Application
1. The materials of parts are selected excelletly
2. This valve adopts triple-eccentric construction. Small friction of Seat and torque during opening orclosing.
3. The disk is trussframed with plates and flow resistant is lower.
4. It has reliable sealing structure for two-way stoping without leakage.
5. The rubberfly sealring could be replaced on pipeline without removing the valve( DN>700)
6. The axle sleeves are selflubricated beaing, oiling is out need and friction drag is small during operation.
Materials
| NO. | Part Name | Material |
| 1 | Bolt | A351 CF8M |
| 2 | End Cover | A351 CF8M |
| 3 | O-Ring | EPDM/NBR |
| 4 | Bushing | PTFE/Brass |
| 5 | Body | A351 CF8M |
| 6 | Down Stem | SS416/SS304 |
| 7 | Disc Pin | SS304 |
| 8 | Disc | A351 CF8M |
| 9 | Retaining Ring | A276 316 |
| 10 | Disc Sealing Ring | SS+Graphite |
| 11 | Body Seat | STL6 |
| 12 | Stuffing | EPDM/NBR/Graphite |
| 13 | Stuffing Box | Stainless Steel |
| 14 | Up Stem | 17-4PH |
| 15 | Manual Actuator | Assembly |