AVK GATE VALVE, FLANGED, AWWA, ANSI 125/150
SS/alu-bronze stem, wrench nut, EPDM (NBR gasket), A4 bolts, brass wedge nut, 250 µm blue EP, UL/ULC/FM
Contact
Enquiries (Office)
AVK Singapore Pte. Limited, 40 Gambas Crescent Nordcom 2 757018 Singapore Singapore
Flanged gate valve with wrench nut for fire protection applications to max. 70°C/160°F, rated working pressure DN 50-300: 250psi/17bar, DN 350-400: 200psi/14bar
AVK series 45 gate valves are designed to US-standards. Valve body, bonnet and wedge core are made of ductile iron which ensures high strength and reliability. The wedge is fully vulcanized with AVK's own drinking water approved EPDM rubber compound featuring an outstanding ability to regain its original shape. Corrosion protection is excellent with all iron parts coated with fusion bonded epoxy, fasteners in stainless steel and stem in either copper alloy or stainless steel.
| Variant 45/59-025 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile iron |
| DN: | DN50 |
| PN: | AWWA C509 |
| Closing direction: | Clockwise to Close |
Features
- Integral wedge nut firmly fixed to the wedge prevents vibration
- Wedge fully vulcanized with EPDM rubber in a process that prevents creeping corrosion underneath the rubber
- Wedge sliding on guide rails gives smooth operation and low operating torque
- A large conical stem hole in the wedge ensures circulation and prevents stagnant water
- Stem of stainless steel AISI 304 with rolled threads (DN50-300) or high strength alu-bronze grade C63020 (DN350-400)
- Full circle thrust bearing keeps the stem firmly lined up and ensures low operating torque
- Stem sealing with a wiper ring, two upper O-rings in a polyamide bearing and one lower O-ring as the main stem seal
- Round bonnet gasket fixed in a recess to prevent blow-out
- Bonnet bolts in A4 stainless steel, counterbored, sealed with hot-melt and encircled by the bonnet gasket
- Full bore and clear way
- Fusion bonded epoxy coating blue RAL5017 in compliance with DIN 3476 part 1 and EN 14901
Downloads
Reference nos. and dimensions:
| AVK ref. no. | DN mm |
Flange drilling |
L mm |
H mm |
H3 mm |
W mm |
Theoretical weight/kg |
Notes |
|---|---|---|---|---|---|---|---|---|
| 45-050-59-02614 | 50 | CL. 150 | 178 | 293 | 383 | 152 | 23 | Not UL listed |
Components
| 1. | Bolt, hexagon head | Stainless steel A4 |
| 2. | Washer | Stainless steel A4 |
| 3. | Wrench nut | Cast iron GJL-250 (GG-25) |
| 4. | Wiper ring | NBR rubber |
| 5. | Gland flange bolt | Stainless steel A4 |
| 6. | Stem seal O-ring | NBR rubber |
| 7. | Washer | Stainless steel A4 |
| 8. | Bushing | Polyamide |
| 9. | Gland flange | Ductile iron GJS-500-7 (GGG-50) |
| 10. | O-ring | NBR rubber |
| 11. | Thrust collar | Brass DZR CW602N |
| 12. | Stem seal O-ring | EPDM rubber |
| 13. | Bonnet bolt seal | Hot melt glue |
| 14. | Bonnet | Ductile iron GJS-500-7 (GGG-50) |
| 15. | Bonnet gasket | NBR rubber |
| 16. | Bonnet bolt | Stainless steel A4 |
| 17. | Stem | Stainless steel AISI 304 |
| 18. | Wedge nut | Brass DZR CW602N |
| 19. | Boss | Ductile iron GJS-500-7 (GGG-50) |
| 20. | Wedge | Ductile iron, EPDM encapsulated |
| 21. | Body | Ductile iron GJS-500-7 (GGG-50) |
Test/Approvals
- Hydraulic tests according to FM and UL Standards
- Seat: 1.5 x PN (in Bar). Body: 2 x PN (in Bar). Closing torque test.
- FM Approved, UL listed
- Belgaqua approved material
Standards
- AWWA C509, FM 1120/1130, UL 262
- Face-to-face dimension according to ANSI B16.10
- Flange drilling to ANSI B 16.42, class 150
