AVK AUTOMATIC AIR VENT VALVE, 1" FEMALE BSP
SS 304L float, EPDM seal, A2 bolts, GZ coated A4 nuts, 250µm blue WRAS EP
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AVK Valves India Pvt Ltd
117 & 118, 1st Floor, Road Number 3 Vijayanagar, EPIP Phase I, Whitefield, Bengaluru, Karnataka 560066, India
Automatic air vent valve for clean water (not sewage or waste water) and other neutral liquids to max. 70°C
AVK series 851 automatic air venting valves are designed for automatic discharge of accumulated air during normal working conditions. Corrosion protection is ensured by coating all ductile iron components with drinking water approved, fusion bonded epoxy and having all other components made by a drinking water approved stainless steel. The seals are made of drinking water approved EPDM rubber featuring an excellent compression set and ability to regain the original shape.| Variant 851/4A-004 | |
|---|---|
| Connection: | Internal Thread |
| Material: | Ductile iron |
| DN: | DN25 |
| PN: | PN 16 |
Features
- 1 inch female BSP thread for connection to pipe system
- The resilient seals are made of drinking water approved EPDM
- All composite materials in contact with the medium are approved for drinking water
- Stainless steel A2 bolts with DeltaSeal GZ coated A4 nuts
- Iron parts with contact to the water are corrosion protected with epoxy, RAL 5017, 250 µm, drinking water approved by WRAS
Downloads
Datasheet
Certificate(s)
Installation, operation and maintenance manuals
Reference nos. and dimensions:
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| Reference no. | DN mm |
L mm |
W mm |
H3 mm |
Theoretical weight/kg |
|---|---|---|---|---|---|
| 851-025-4A-91C000 | 25 | 138 | 138 | 149 | 4.0 |
Enquiry
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Components
| 1. | Body | Ductile iron EN-GJS-500-7 |
| 2. | Float | Stainless steel AISI 304L |
| 3. | Split pin | Stainless steel A2 |
| 4. | O-ring | EPDM rubber |
| 5. | Bonnet | Ductile iron EN-GJS-500-7 |
| 6. | Gasket | EPDM rubber |
| 7. | Orifice bracket | Polyamide |
| 8. | Orifice cover | Polyamide |
| 9. | Seal | EPDM rubber |
| 10. | Bolt | Stainless steel A2 |
| 11. | Washer | Stainless steel A2 |
| 12. | Nut | Stainless steel A4 |
Test/Approvals
- Hydraulic test according to EN 1074-1 / EN 12266
- WRAS approved materials
- Licensed by BIS acc. to IS 14845, CM/L 6300011673
Standards
- EN 1074-4
