AVK SWING CHECK VALVE, METAL SEATED
Right side lever and weight, stainless steel shaft (AISI316), DN50-300, PN10/16
Contact
AVK Saudi Valves
Jeddah Industrial City, Phase 4, Street no 45 P.O. Box 10830, 21443 Jeddah 24/7 Leakage Repair Service +966 50 595 5166
Metal seated swing check valve with lever and weight for drinking water and neutral liquids to max. 70°C
AVK series 41 swing check valves come with both metal and resilient seats. Installed in pumping applications to prevent back flow they can be used for drinking water as well as waste water. The disc is connected to the shaft via a flexible bush that allows disc and valve seat to adjust exactly. All interior parts are stainless steel or coated with drinking water approved epoxy or EPDM. The series 41 valves are available with either closed bushings or protruding shaft end where a lever with a weight or a spring can be fitted to mitigate pressure surges.
| Variant 41/36-002 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile iron |
| DN: | DN50 - DN300 |
| PN: | PN 16 |
Features
Clear way and full bore for low head loss and easy pig-cleaning
Metal seat in gunmetal bronze for high durability
Shaft fitted in the bonnet allowing for easy maintenance without removing valve from pipeline
Shaft, bolts and washers in 1.4404 (AISI 316L) acid resistant stainless steel
Position indicating lever with an adjustable weight that aids the disc in closing quickly to reduce water hammer
Hinge of stainless steel for sizes ≤ DN 200; ductile iron coated with drinking water approved epoxy for larger
Ductile iron disc covered with drinking water approved EPDM
Bonnet gasket lying in a groove between bonnet and body prevents blow-out
All seals and coatings with contact to the fluid are approved for drinking water - coating is blue, 300µm fusion bonded epoxy
Disc mounted in a flexible rubber bushing allowing it to tilt slightly in all directions and adjust exactly to the valve seat
Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.
Downloads
| AVK_swing_check_valve_animation.mp4 |
Reference nos. and dimensions:
| AVK ref. no. | DN mm |
Flange drilling |
L mm |
H mm |
H3 mm |
W mm |
W1 mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|---|---|
| 41-050-36-0180106 | 50 | PN10/16 | 203 | 125 | 210 | 250 | 155 | 13 |
| 41-080-36-0180106 | 80 | PN10/16 | 241 | 140 | 240 | 245 | 145 | 19 |
| 41-100-36-0180106 | 100 | PN10/16 | 292 | 155 | 265 | 270 | 170 | 24 |
| 41-150-36-0180106 | 150 | PN10/16 | 356 | 220 | 360 | 340 | 205 | 42 |
| 41-200-36-0180106 | 200 | PN16 | 495 | 250 | 420 | 395 | 230 | 74 |
| 41-250-36-0180106 | 250 | PN16 | 622 | 347 | 560 | 712 | 409 | 140 |
| 41-300-36-0180106 | 300 | PN16 | 699 | 395 | 650 | 715 | 405 | 195 |
Components
| 1. | Bolt/nut | Stainless steel A4 |
| 2. | Body | Ductile iron GJS-500-7 (GGG-50) |
| 3. | Washer | Stainless steel A4 |
| 4. | Disc | Ductile iron, EPDM encapsulated |
| 5. | Hinge | Stainless steel / ductile iron |
| 6. | Gasket | EPDM rubber |
| 7. | Face ring | Bronze CC491K |
| 8. | O-ring | NBR rubber |
| 9. | Seat ring | Bronze CC491K |
| 10. | Washer | Copper |
| 11. | Air plug | Stainless steel 1.4401 (316) |
| 12. | Bonnet | Ductile iron GJS-500-7 (GGG-50) |
| 13. | Connector | Stainless steel CF8M (1.4408) |
| 14. | Bushing, closed | Brass CW614N |
| 15. | Shaft | Stainless steel 1.4401 (316) |
| 16. | O-ring | NBR rubber |
| 17. | O-ring | NBR rubber |
| 18. | Spacer | Stainless steel 1.4401 (316) |
| 19. | Key | Stainless steel 1.4401 (316) |
| 20. | O-ring | NBR rubber |
| 21. | Bushing, open | Brass CW614N |
| 22. | Lever | Ductile iron GJS-500-7 (GGG-50) |
| 23. | Weight | Ductile iron GJS-500-7 (GGG-50) |
| 24. | Screw | Stainless steel A4 |
Test/Approvals
- Hydraulic test according to EN 1074-3. |
- Seat: 1.1×PN (in bar), Body: 1.5×PN (in bar).
- Approved by SASO
Standards
- Designed according to EN 1074 - 3
- Face to face according to EN 558 Table 2 Basic Series 10
- Flange drilling to EN1092-2 (ISO 7005-2), PN10/16
