AVK MULTI HYDRANT, ABOVE GROUND, PN 16
Model N7, with traffic break-away design (Type C), double shut-off, in GGG
AVK UK
Gas & Water Sales
Above ground hydrant model N7 with traffic break-away design (Type C) - double shut-off for drinking water and neutral liquids to max. 60° C
AVK’s Multi hydrants are available with multiple configurations. The heavy duty materials with extra corrosion protection, the PUR coated disc with high memory effect and the high flow capacity ensure durability and good performance. Series 84/93 is designed with double shut-off system for a continued sealing of the hydrant during maintenance, and with traffic break-away design. The flanges connecting the upper and lower barrel are assembled with special stainless steel bushes designed to break if something hits the hydrant. These bushes are the only spare parts to be replaced in case of a breakdown.
| Variant 84/93-003 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile Iron |
| PN: | PN 16 |
Features
- Several Storz outlet configurations available eg. 2 x C, 2 x B, 2 x B + 1 x A, 2 x C + 1 x B, etc.
- Up to 4 outlets possible
- Valve seat of dezincification resistant brass
- Automatic drainage in flush proof design
- Integrated air valve of brass
- Disc with ductile iron core coated with PUR (Polyurethane) for maximum memory effect
- Additional ball shut-off for easy maintenance of the hydrant
- Stainless steel bushes in the upper barrel flange, protecting against damage at traffic knock down
- Kv value, DN 80: 1 x 65 outlet: 153 m3/h, 2 x 65 outlet: 153 m3/h
- Kv value, DN 100: 1 x 65 outlet: 210 m3/h, 2 x 65 outlet: 217 m3/h
- Drainage: Residual flow, DN 80/100: 17/22 ml – Time for drainage, DN 80/100: 120/215 sec/m.
- Operating force resistance: MOT = 125 Nm, MST = 250 Nm
- Externally and internally epoxy coated to DIN 30677-2, GSK approved and with a topcoat of UV resistant polyester
- Fully vulcanized ball sealing gasket
- The gear positioned in the lower part and a loosely plugged connection of the operation pipes, makes the main hydrant sealing remain fully functional at an accidental traffic knock down.
- Possibility of rotation in the upper barrel including the hydrant head by 360°
Components
| 1. | Operation nut | Aluminium |
| 2. | Straight pin slotted | Stainless spring steel 1.4310 |
| 3. | Washer | Stainless steel A2 |
| 4. | Hydrant head | Ductile iron GJS-400-15 |
| 5. | Wiper ring | NBR rubber |
| 6. | Bearing bush | Brass |
| 7. | O-ring | EPDM |
| 8. | Air valve | Brass |
| 9. | Coupling | Aluminium |
| 10. | O-ring | EPDM |
| 11. | Cover with wire | Aluminium |
| 12. | O-ring | EPDM |
| 14. | Washer | Stainless steel A2 |
| 15. | Socket head bolt | Stainless steel A2 |
| 16. | Upper stem rod | Stainless steel |
| 17. | Upper barrel | Ductile iron GJS-400-15 |
| 19. | Washer | Stainless steel A2 |
| 20. | Socket head bolt | Stainless steel A2 |
| 21. | Breakable bush | Stainless steel |
| 22. | Adaptor ring | Ductile iron GJS-400-15 |
| 23. | O-ring | EPDM |
| 24. | Lock ring | Ductile iron GJS-400-15 |
| 25. | Bolt | Stainless steel A2 |
| 26. | Washer | Stainless steel A2 |
| 27. | Drain pipe | PA |
| 28. | Clamp half | Ductile iron GJS-400-15 |
| 29. | Lower barrel | Ductile iron GJS-400-15 |
| 30. | Lower stem rod | Stainless steel 1.4021, GJS (GGG), PUR |
| 31. | Ring | Ductile iron GJS-400-15 |
| 32. | Helical roll pin | Stainless spring steel 1.4310 |
| 33. | Stem Guide | Ductile Iron GJS-500-7 |
| 34. | Stem | Stainless steel 1.4021 |
| 35. | Washer | POM |
| 36. | Stem nut | Brass |
| 37. | Locking segment | HDPE |
| 38. | Ball chamber | Ductile iron GJS-400-15 |
| 39. | Ball | PP |
Test/Approvals
- Hydraulic test according to EN 1074-6 / VP 325 (3321)
Standards
- Designed according to EN 1074 - 6
- Standard flange drilling to EN1092 (ISO 7005-2), PN 16
