01
Stainless Steel Butt-Welding 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 partsare selected excelletly
2. This valve adopts triple-eccentric construction. Small friction ofSeatandtorque 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 | WCB |
| 2 | End Cover | WCB |
| 3 | O-Ring | EPDM/NBR |
| 4 | Bushing | PTFE/Brass |
| 5 | Body | WCB |
| 6 | Down Stem | SS416/SS304 |
| 7 | Disc Pin | SS304 |
| 8 | Disc | CF8/CF8M |
| 9 | Retaining Ring | 304/316 |
| 10 | Disc Sealing Ring | SS+Graphite |
| 11 | Body Seat | SS304 |
| 12 | Stuffing | EPDM/NBR/Graphite |
| 13 | Stuffing Box | Stainless Steel |
| 14 | Up Stem | SS416/SS304 |
| 15 | Manual Actuator | Assembly |





