AVK CLEARWAY UNDERGROUND HYDRANT
DN80 PN16. For Smart Water
Anthony Whittam
Head of Smart Water and Pressure Management
AVK Clearway Underground hydrant, PN16, for water and fire protection: -10° C to +70° C. Insulation essential for temperatures of 0° C and below.
The Series 29/91 is the dimensional equivalent of a squat hydrant but with a full, straight bore from inlet to outlet. This allows a greatly enhanced flow-rate and ease of introduction and retrieval of pipe maintenance and measurement equipment. It is suitable for use with water and neutral liquids to a maximum temperature of +70°C. Complies with requirements of BS 750:2012 and EN 14339:2005, underground hydrants. Also to BS EN 1074-6 for potable (drinking) water. Resistant to corrosion of other component parts. Resistant to disinfection products.
| Variant 29/91-004 | |
|---|---|
| Connection: | No connection type specified |
| Material: | Ductile Iron |
| DN: | DN80 - DN80 |
| PN: | PN 16 |
| Closing direction: | Clockwise to Close |
Features
- Communication: LoRa® (868MHz) or NB-IoT (Band 8&20)
- Detects the position of the valve and transmits data and alerts to the VIDI Cloud or a third-party software
- Fitted with an AVK status indicator - see product reference 3002/100-001
- Through bore. Bore Dimension full 80mm diameter with outlet removed.
- Exceeds standard flow requirements: Minimum specified flow 2000l/min @ 1.7 bar and Kv = 92. Actual flow 2538l/min @ 1.7 bar and Kv = 115.
- Fully maintainable in situ.
- Patented product.
- Type 2c. Screwed down type with screwed 2½” round thread outlet.
- Autofrost valve as standard.
- Corrosion resistant construction, ductile iron coated with WRAS approved epoxy coating Blue RAL 5017, to 250 microns min, holiday-free.
- Branch tapping – 1/8" BSP ball valve connections suitable for smart sensors such as VIDI Pressure / VIDI Temperature to enable informed decision making prior to operation.
- Options: Direct mounted quick fit connection. Outlet options: • Stainless steel (standard) or Gunmetal to BS 750 round thread • Instantaneous (Morris) • Belfast • London “V” thread • Internal screwed Norwegian • Bayonet (Dublin).
Downloads
Reference nos. and dimensions:
| Ref. no. | Communication |
DN mm |
D mm |
D1 mm |
L mm |
H3 mm |
H11 mm |
W mm |
W1 mm |
W5 mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 29-080-91-52034369025 | LoRa | 80 | 200 | 82 | 280 | 377 | 297 | 188 | 103 | 138 | 20 |
| 29-080-91-52034369026 | NB-IoT | 80 | 200 | 82 | 280 | 377 | 297 | 188 | 103 | 138 | 20 |
Components
| 1. | Outlet | Stainless steel |
| 2. | Bush | PA |
| 3. | O-rings | Rubber |
| 4. | Stem Cap | Ductile iron |
| 5. | Dust Cap | Polyethylene |
| 6. | Stem | Stainless steel |
| 7. | Retainer ring | Brass |
| 8. | Hinge Shaft | Stainless steel |
| 9. | Stem Bush | Brass |
| 10. | Bonnet gasket | Rubber |
| 11. | Auto-frost assembly | Stainless steel / EPDM |
| 12. | Body | Ductile iron |
| 13. | Bonnet | Ductile iron |
| 14. | Gland flange | Ductile iron |
| 15. | Thrust collar | Brass |
| 16. | Stem nut | Brass |
| 17. | Hinge | Stainless steel |
| 18. | Bolt | Stainless steel |
| 19. | Disc Lower Part | Ductile iron |
| 20. | Disc | |
| 21. | Disc, upper part | Ductile iron |
| 22. | Bolt | Stainless steel |
Test/Approvals
- Max operating pressure:16 Bar
- Hydraulic test to BS 750 Seat: 1.1 x PN. Body: 1.5 x PN. Operating torque test
- Resistance to operating load - MOT - 105NM - MST - 210NM
- Draining - Volume of retained water 12ml after 4 minutes
- WRAS approved Materials
- Kitemark™ approved
- UKCA / CE marked according to Construction Products Directive
- Made in Great Britain
- Drinking Water Inspectorate Regulation 31 compliant
Standards
- Designed according to BS750, Designed according to EN 1074 - 6, Designed according to EN 14339:2005
- Double drilled PN10/16 and BS10 table D (only DN80 and DN100)
- WIMES 8.09 Compliant
