HEAVY DUTY KNIFE GATE VALVE, LUGGED, UNI DIRECTIONAL
Cast CF8M Body, SS-316 Blade, PTFE Packing, NBR Seat, Rising Stem, Handwheel, CC, PN10
Contact
AVK Australia Civil
559A Grand Junction Road Wingfield SA 5013 Sales and Technical enquiry
Manually operated unidirectional lugged knife gate valve for applications with abrasive slurries, Pulp & Paper, Power Plants, Mining, Chemical Plants, Wastewater Treatment, Food & Beverage, etc. Size range: DN50-600 (larger sizes upon request). Work pressure:10 bar.
The AVK series 779/20 is a unidirectional, heavy duty lugged knife gate valve, equipped with internal cast gate wedges and guides, designed for general industrial service applications, such as Pulp & Paper, Mining, Chemical Plants, Wastewater Treatment, etc. The gate body and seat assure non-clogging shut off on suspended solids.
| Variant 779/20-003 | |
|---|---|
| Material: | Stainless Steel |
| DN: | DN50 - DN600 |
| PN: | PN10 |
| Closing direction: | Clockwise Close |
Features
- Lug type one piece cast stainless steel body with internal cast-in gate wedges and guides, larger sizes with reinforcing ribs providing the body with extra strength
- Stainless Steel 316 stem
- Port design as per MSS SP-81
- Stainless Steel 316 gate polished both sides to avoid jamming and seat damage
- Long life PTFE impregnated synthetic fibre plus EPDM o-ring packing with easy access and adjustable gland follower. Wide range of packing materials available
- RAL-5015 blue epoxy-coating on all cast iron/carbon steel components
Downloads
Reference nos. and dimensions:
| AVK ref. no. | DN mm |
Product PN Class |
A mm |
B mm |
C mm |
D mm |
E mm |
F mm |
G mm |
H mm |
Theoretical weight / kg |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 779-0050-20-0000042 | 50 | PN10 | 48 | 124 | 100 | 98 | 136 | 47 | 225 | 420 | 8 |
| 779-0080-20-0000045 | 80 | PN10 | 51 | 149 | 100 | 119 | 162 | 47 | 225 | 470 | 10 |
| 779-0100-20-0000061 | 100 | PN10 | 51 | 169 | 100 | 139 | 187 | 47 | 225 | 519 | 13 |
| 779-0125-20-0000045 | 125 | PN10 | 57 | 169 | 100 | 150 | 223 | 47 | 225 | 613 | 16 |
| 779-0150-20-0000065 | 150 | PN10 | 57 | 197 | 100 | 165 | 237 | 47 | 225 | 642 | 20 |
| 779-0200-20-0000060 | 200 | PN10 | 70 | 247 | 122 | 203 | 309 | 67 | 310 | 820 | 32 |
| 779-0250-20-0000055 | 250 | PN10 | 70 | 298 | 122 | 233 | 345 | 67 | 310 | 986 | 47 |
| 779-0300-20-0000068 | 300 | PN10 | 76 | 349 | 122 | 273 | 390 | 69 | 410 | 1071 | 65 |
| 779-0350-20-0000066 | 350 | PN10 | 76 | 349 | 193 | 312 | 433 | 66 | 410 | 1245 | 95 |
| 779-0400-20-0000073 | 400 | PN10 | 89 | 439 | 193 | 347 | 478 | 66 | 410 | 1325 | 122 |
| 779-0450-20-0000071 | 450 | PN10 | 89 | 483 | 197 | 415 | 552 | 67 | 550 | 1510 | 160 |
| 779-0500-20-0000061 | 500 | PN10 | 114 | 542 | 197 | 450 | 611 | 67 | 550 | 1617 | 202 |
| 779-0600-20-0000069 | 600 | PN10 | 114 | 637 | 197 | 501 | 697 | 67 | 550 | 1883 | 290 |
Components
| 1. | Body | Stainless steel CF8M |
| 2. | Gate | Stainless steel 316 |
| 3. | Seat | NBR rubber |
| 4. | Packing | PTFE |
| 5. | Gland follower | Stainless steel CF8M |
| 6. | Stem | Stainless steel |
| 7. | Stem nut | Brass |
| 8. | Yoke | Stainless steel 316 |
| 9. | Seat ring | Stainless steel 316 |
| 10. | Handwheel | Ductile iron GJS-400-15 (GGG-40) |
| 11. | Cap | Plastic |
| 12. | Protection cover | Carbon steel, epoxy coated |
| 13. | Friction washer | Brass |
| 14. | Nut | Steel, zinc plated |
Test/Approvals
- Seat: 1.1 x PN. Body: 1.5 x PN.
Standards
- Flange drilling to AS/NZS 4087 B5
