BUTTERFLY VALVE, DOUBLE ECCENTRIC, SHORT, PN10/16
IP67 gearbox w. act. flange/pos. ind., welded SS seat, SS seal ret. ring, SS-4057 shaft, A2 fasteners, 250µm EP coating
Contact
AVK Philippines Inc.
70 West Avenue Brgy. West Triangle 1104 Quezon City, Philippines
Double eccentric butterfly valve for neutral liquids like drinking water, filtered raw water and filtered wastewater to max 70°C
AVK series 756 double eccentric butterfly valves with tilted disc are designed for easy operation and long service life. The disc seal is made of AVK's drinking water approved EPDM rubber featuring an excellent compression set and ability to regain the original shape. The high quality epoxy coating and fully encapsulated shaft/disc connection ensure optimal corrosion protection and durability.
| Variant 756/H02-005 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile iron |
| PN: | PN 16 |
| Closing direction: | Clockwise to Close |
Features
- Welded stainless steel 309L seat integrated in the body
- Rotork gearbox, IP67, with actuator flange and position indicator, shaft and bolts in stainless steel
- Double eccentric design releases seal compression after only few degrees of opening resulting in low operating torque
- Disc firmly fixed to the shaft to prevent fluttering and a slight tilt allows for precise adjustment of the closed position
- All threaded connections are sealed with O-rings for protection against medium and environment
- CSB self-lubricating radial- and thrust bearings
- Replaceable shaft seals with two EPDM O-rings
- Shaft fully encapsulated in disc and sealed by gasket and O-ring
- Coating DN≤1600: Blue RAL 5017 FBE to DIN 3476, GSK and approved by WRAS-DVGW/W270/UBA, 250µm. Coating DN≥1800: 2-pack EP, WRAS approved, RAL5017 externally and ribbon blue or cream white internally, 250µm
- Drinking water approved by DVGW (DN≤1200) and WRAS (DN200-1200)
Downloads
Components
| 1. | Key | Stainless steel A2 |
| 2. | Seal housing | Bronze CC331G (AB1) |
| 3. | O-ring | EPDM rubber |
| 4. | O-ring | EPDM rubber |
| 5. | Shaft, drive | Stainless steel 1.4057 |
| 6. | Bearing | Bronze/PTFE comp. on steel back |
| 7. | Disc cover | Stainless steel 1.4401 |
| 8. | Disc cover gasket | EPDM rubber |
| 9. | Disc | Ductile iron EN-GJS-500-7 |
| 10. | Shaft, stub | Stainless steel 1.4057 |
| 11. | Body | Ductile iron EN-GJS-500-7 |
| 12. | Thrust washer | Bronze/PTFE comp. on steel back |
| 13. | Bolt | Stainless steel A2 |
| 14. | End plate | Ductile iron EN-GJS-500-7 |
| 15. | Gearbox | Cast iron |
| 16. | Washer | Stainless steel A2 |
| 17. | Bolt | Stainless steel A2 |
| 18. | Bolt | Stainless steel A2 |
| 19. | O-ring | EPDM rubber |
| 20. | O-ring | EPDM rubber |
| 21. | Bolt | Stainless steel A2 |
| 22. | Seal retainer ring | Stainless steel 1.4301 |
| 23. | Rubber seal | EPDM rubber |
| 24. | Welded seat | Stainless steel AISI 309L |
| 25. | Bolt | Stainless steel A2 |
| 26. | Security plate | Stainless steel 1.4301 |
| 27. | Washer | Stainless steel A2 |
| 28. | Dowel pin | Stainless steel 1.4057 |
| 29. | O-ring | EPDM rubber |
| 30. | Thrust bearing | Stainless steel 1.4021 |
| 31. | Blanking flange | Ductile iron EN-GJS-500-7 |
| 32. | O-ring | EPDM rubber |
| 33. | O-ring | EPDM rubber |
Test/Approvals
- Approved for drinking water. WRAS Cert-2206003 (DN200-DN600) & WRAS Cert-2307007 (DN700-DN1200)
- EPDM rubber compound approved by WRAS for drinking water to 60°C
- Approved according to DIN-DVGW Certificate NW-6201BR0451 (DN ≤ 1200)
Standards
- Face-to-face dimension according to EN 558, basic series 13
- Flange drilling to EN1092, PN10/16
- Design to EN 593 except requirements for ‘end of line service only’ in which case the requirements of EN 1074 apply
- Flange drilling to EN 1092-2, except DN3000/16bar and DN3200 drilled to manufacturer's own standard.
- Face to face:
- EN 558 series 13 or 0.4xDN-80 for sizes not covered by this standard (DN ≥ 2200)
- Exception DN2500: 0.4xDN-120
