KNIFE GATE VALVE, PN10
Rising stem and handwheel, replaceable top packing gland
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AVK Singapore Pte. Limited, 40 Gambas Crescent Nordcom 2 757018 Singapore Singapore
Knife gate valve with rising stem and handwheel for wastewater treatment 0°C to +80°C
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 |
| 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 100-150 μm UV resistant polyester coating, RAL 5017. Optionally of acid-resistant stainless steel or duplex
- Yokes of carbon steel with coating 100-150 μm of plascoat PPA 571 Aqua
- 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 2014/68/UE Pressure Equipment Directive
- Approved according to the 2014/34/EU ATEX Directive
- Available in larger dimensions
- Optionally in higher PN class
Components
| 1. | Plate | Carbon steel |
| 2. | Stem | Stainless steel AISI 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 AISI 316 |
| 9. | U-shaped seal | Steel / NBR |
| 10. | Bolt | Stainless steel A4 |
| 11. | Handwheel | Steel |
| 12. | Washer | Stainless steel A4 |
| 13. | Bolt | Stainless steel A4 |
| 14. | Bearing | Carbon steel |
Test/Approvals
- ISO 45001 certified - SAI Global Certification
- ISO 14001 certified - SAI Global Environment
- ISO 9001 certified - SAI Global Quality
Standards
- Face-to-face dimension according to EN 558, basic series 20
- Flange drilling to EN1092, PN10/16
