AVK KNIFE GATE VALVE, PN10
Rising stem and handwheel, replaceable top packing gland, DN50-600
Knife gate valve with rising stem and handwheel for wastewater treatment 0°C to +80°C
Description
Key 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
Information
AVK lug/wafer knife gate valves are bi-directional with full and plane bore. The protected sealings and high quality materials bring about a great performance and a long service life. 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 702/20-103 | |
---|---|
Connection: | Flanged |
Material: | Ductile Iron |
DN: | DN200 – DN600 |
PN: | PN 10 |
1. | Plate | Carbon steel |
2. | Stem | Stainless steel 316 |
3. | Bolt | Stainless steel A4 |
4. | Top packing gland | Ductile iron GJS-400-15 |
5. | Bolt | Stainless steel A4 |
6. | Packing | NBR + PTFE |
7. | Body | Ductile iron GJS-400-15 |
8. | Gate | Stainless steel 316 |
9. | U-shaped seal | NBR encaps. steel |
10. | Bolt | Stainless steel A4 |
11. | Handwheel | Steel |
12. | Washer | Stainless steel A4 |
13. | Bolt | Stainless steel A4 |
14. | Bearing | Carbon steel |
Standards
- Face to face according to DIN/EN 558-1, series 20 (K1), up to and incl. DN 350
- Standard flange drilling to EN1092 (ISO 7005-2), PN 10/16
- Drinking Water Inspectorate Regulation 31 compliant
- Wimes 8.09 compliant
Additional information
Reference No. | 702-0200-10-0000026, 702-0250-10-0000026, 702-0300-10-0000023, 702-0350-10-0000026, 702-0400-10-0000016, 702-0450-10-0000022, 702-0500-10-0000015, 702-0600-10-0000015 |
---|---|
Brand | AVK |
PN | PN10 |
Reference Nos. and Dimensions
Reference Number | DN
mm |
Flange
Drilling |
D
mm |
L
mm |
H3
mm |
HC
mm |
HO
mm |
W
mm |
Test Pressure
Bar |
Working Pressure
Bar |
Theoretical
Weight kg |
702-0200-10-0000026 | 200 | PN10 | 300 | 60 | 989 | 623 | 824 | 326 | 15 | 10 | 44 |
702-0250-10-0000026 | 250 | PN10 | 300 | 68 | 1179 | 729 | 980 | 395 | 15 | 10 | 62 |
702-0300-10-0000023 | 300 | PN10 | 400 | 78 | 1386 | 858 | 1160 | 451 | 15 | 10 | 85 |
702-0350-10-0000026 | 350 | PN10 | 400 | 78 | 1560 | 951 | 1303 | 518 | 9 | 6 | 124 |
702-0400-10-0000016 | 400 | PN10 | 400 | 90 | 1749 | 1059 | 1461 | 576 | 9 | 6 | 159 |
702-0450-10-0000022 | 450 | PN10 | 500 | 90 | 1977 | 1206 | 1664 | 560 | 6 | 4 | 227 |
702-0500-10-0000015 | 500 | PN10 | 500 | 95 | 2139 | 1308 | 1816 | 698 | 6 | 4 | 278 |
702-0600-10-0000015 | 600 | PN10 | 500 | 105 | 2518 | 1497 | 2105 | 817 | 6 | 4 | 382 |
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