AVK KNIFE GATE VALVE, CTC
Quick operation lever, replaceable top packing gland
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Knife gate valve with quick operation lever for wastewater treatment 0°C to +80°C
AVK lug/wafer knife gate valves are bi-directional with full and plain bore. The protected sealings and high quality materials bring about a great performance and a long service life. The valves can be re-tightened during service. AVK knife gate valves are available with lever, non-rising stem and handwheel, rising stem and handwheel, pneumatic actuator, ISO top flange for actuator or complete with electric actuator.
| Variant 702/30-103 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile Iron |
| DN: | DN50 - DN150 |
| PN: | PN 10 |
Features
- Replaceable top packing gland enables sealing replacement without disassembly of the valve
-
The valve is self cleaning as particles will be pushed off the gate when opening the valve. For extra protection of the packing gland a scraper is available as an optional extra.
-
Bi-directional, can be installed independent of the flow direction
- Full bore with no reduction of the flow
- Plane bottom prevents sediment from being accumulated
- No cavity in the body and thus no risk of clogging
- U-shaped one-piece NBR sealing between the body parts makes up for tolerances in coating and casting. It is reinforced with a steel insert to protect it from being damaged during operation.
- Encaged stem with yokes prepared for mounting of micro switches and inductive censors
- Stem and gate connection is secured with self-locking nuts
- Supports integrated in the body casting protect the gate from deflecting under pressure
- Body of ductile iron with 150 μ fusion bonded epoxy coating. Optionally of acid-resistant stainless steel or duplex.
- Gate, stem, bolts and nuts of acid-resistant stainless steel
- Washers under the bolts protect the coating
- Slim design and low weight
- Approved according to the 97/23/CE European Pressure Equipment Directive
- Approved according to the 94/9/94EC, ATEX Directive
- Available in larger dimensions
- Optionally in higher PN class
Downloads
Reference nos. and dimensions:
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| Ref. no. | DN mm |
Flange drillling |
L mm |
H3 mm |
W mm |
W1 mm |
HC mm |
HO mm |
Test pressure bar |
Working Pressure bar |
Theoretical weight/kg |
Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 702-050-30-134 | 50 | PN10/16 | 43 | 656 | 130 | 400 | 363 | 591 | 4.5 | 3 | 9.5 | |
| 702-065-30-134 | 65 | PN10/16 | 46 | 734 | 143 | 500 | 394 | 662 | 4.5 | 3 | 12 | |
| 702-080-30-134 | 80 | PN10/16 | 46 | 849 | 184 | 600 | 430 | 757 | 4.5 | 3 | 17 | |
| 702-100-30-134 | 100 | PN10/16 | 52 | 933 | 204 | 700 | 475 | 831 | 4.5 | 3 | 20 | |
| 702-125-30-134 | 125 | PN10/16 | 56 | 1013 | 188 | 800 | 507 | 892 | 4.5 | 3 | 22 | Without a replaceable top packing gland |
| 702-150-30-134 | 150 | PN10/16 | 56 | 1278 | 233 | 1000 | 601 | 1143 | 4.5 | 3 | 29 | Without a replaceable top packing gland |
3D drawings
Enquiry
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Components
| 1. | Plate | Carbon steel |
| 2. | Stem | Stainless steel 316 |
| 3. | Bolt and nut | Stainless steel A4 |
| 4. | Top packing gland | Ductile iron GJS-400-15 |
| 5. | Bolt | Stainless steel A4 |
| 6. | Packing | EPDM |
| 7. | Body | Ductile iron GJS-400-15 |
| 8. | Gate | Stainless steel 316 |
| 9. | U-shaped seal | |
| 10. | Bolt | Stainless steel A4 |
| 11. | Lever | Carbon steel |
| 12. | Guide | Carbon steel |
| 13. | Drag link | Carbon steel |
| 14. | Lever bracket | Carbon steel |
| 15. | Lock | Steel |
Standards
- Standard flange drilling to EN1092, PN 10/16
