AVK DOUBLE ECC. BUTTERFLY VALVE, LONG, PN16
IP67 gearbox w. act. flange/pos. ind., SS seal/seal ring, Duplex shaft, A4 fasteners, 300µm EP coating,
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Double eccentric butterfly valve to EN 593 for neutral liquids like drinking water and treated waste water free from solids and fibrous impurities to max 70°C.
AVK 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 756/102-030 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile iron |
| DN: | DN300 - DN400 |
| PN: | PN10/16 |
| Closing direction: | Clockwise to Close |
Features
- 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
- Disc seal profile and rubber quality ensure low closing torque
- All rubber parts drinking water approved by multiple institutes
- Fasteners in stainless steel, A4
- Shaft in duplex stainless steel and seal retainer ring in AISI 316 stainless steel
- Replaceable seat ring in stainless steel 1.4401/AISI 316 pressed into the body and sealed with an O-ring
- All threaded connections are sealed with O-rings for protection against medium and environment
- Radial bearings in self-lubricating PTFE/bronze composite
- Shaft ends fitted with an end cover that keeps the shaft in position against system pressure and seals the disc interior against corrosion
- Replaceable shaft seals with two EPDM O-rings; gaskets to the exterior in hydrocarbon resistant NBR
- Coated with blue RAL 5017 FBE to DIN 3476, GSK and approved by WRAS-DVGW/W270/UBA, 300µm
- Drinking water approved by DVGW and WRAS, drinking water approved by KIWA
Downloads
Datasheet
Certificate(s)
Reference nos. and dimensions:
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| AVK ref. no. | DN mm |
Flange drilling |
D1 mm |
L mm |
L1 mm |
L2 mm |
H2 mm |
W1 mm |
W2 mm |
W3 mm |
W4 mm |
W5 mm |
A mm |
B mm |
C mm |
Actuator flange |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 756-0300-1-1430207 | 300 | PN16 | 20 | 270 | 1 | 12 | 293 | 242 | 374 | 6 | 114 | 313 | 263 | 312 | 240 | F10 |
| 756-0400-1-1430207 | 400 | PN16 | 20 | 310 | 33 | 39 | 349 | 302 | 431 | 216 | 232 | 313 | 263 | 369 | 260 | F10 |
Enquiry
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Components
| 1. | Body | Ductile iron GJS-500-7 (GGG-50) |
| 2. | Shaft, drive | Stainless steel, duplex |
| 3. | Bearing | Bronze/PTFE comp. on SS back |
| 4. | Cover | Stainless steel |
| 5. | Key | Stainless steel A4 |
| 6. | Set screw | Stainless steel A4 |
| 7. | End cover | Stainless steel |
| 8. | Disc | Ductile iron GJS-500-7 (GGG-50) |
| 9. | Shaft, stub | Stainless steel, duplex |
| 10. | Spacer | Bronze |
| 11. | Thrust bearing | Bronze |
| 12. | End plate | Ductile iron GJS-500-7 (GGG-50) |
| 13. | Washer | Stainless steel A4 |
| 14. | Bolt | Stainless steel A4 |
| 15. | Screw | Stainless steel A4 |
| 16. | O-ring | EPDM rubber |
| 17. | Gasket | EPDM rubber |
| 18. | Nut | Stainless steel A4 |
| 19. | Seal retainer ring | Stainless steel 1.4404 (AISI 316L) |
| 20. | Seal ring | EPDM rubber |
| 21. | Gearbox | Cast iron |
Test/Approvals
- Hydraulic test according to EN 1074-1 and -2 / EN 12266
- Approved according to KIWA Certificate K 6320
- Approved for drinking water according to WRAS Certificate No. 2206003, max. 23°C (DN200-600)
Standards
- EN 593
- Face-to-face dimension according to EN 558, Series 14
- Flange drilling to EN1092, PN16
