AVK KNIFE GATE VALVE, SHORT WAFER TYPE, PN10

Cast CF8M (SS-316) body, SS-316 blade, PTFE packing, EPDM seal, handwheel/gearbox

Manually operated bi-directional knife gate valve for applications with abrasive slurries, pulp & paper, power plants, wastewater treatment plants, chemical plants, food & beverage, bulk handling, mining, etc. to max. 120°C, 6-10 bar

The AVK series 779/61 is a bi-directional wafer type knife gate valve, equipped with two metal reinforced rubber sleeves, designed for applications with abrasive slurries in industries such as pulp, mining, wastewater treatment, etc. The edge of the knife blade is machined to form a wedge that cuts perfectly through the fluid.
Variant 779/61-002
Connection: Wafer type valve
Material: Stainless steel
DN: DN50 - DN500
PN: PN 10

Features

  • Wafer style cast monoblock in high grade CF8M (SS-316) stainless steel, large sizes with reinforcing ribs providing the body with extra strength
  • Stainless steel stem
  • Internal body design allows the gate to be fully guided
  • Grease nipples allow the gate to be lubricated
  • Draining through the lower part, where a cover or a bottom splash guard can be installed
  • Rapid flow through the bottom of the valve during operation causes solids to be flushed from the body cavity ensuring the full stroke of the valve
  • Knife blade of rectangular shaped AISI 316 stainless steel, polished on both sides and machined to an edge to cut perfectly through the fluid
  • Valve seal consists of two highly resistant, long-lasting  EPDM sleeves in permanent contact with each other ensuring full bore flow
  • Easy replacement of damaged sleeves
  • No seat cavities to cause material build-up and no fluid contact with metallic parts
  • Bi-directional

Downloads

Datasheet

Reference nos. and dimensions:

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AVK ref. no. DN
mm
Flange
drilling
PN
Class
A
mm
B
mm
C
mm
D
mm
H
mm
Theoretical
weight/kg
779-0050-61-0000007 50 PN10 PN10 54 225 63 - 445 10
779-0080-61-0000006 80 PN10 PN10 57 225 90 - 495 15
779-0100-61-0000008 100 PN10 PN10 57 310 100 - 645 18
779-0125-61-0000006 125 PN10 PN10 64 310 122 - 700 24
779-0250-61-0000008 250 PN10 PN10 76 300 199 200 1060 75
779-0300-61-0000008 300 PN10 PN10 82 300 231 200 1460 84
779-0350-61-0000006 350 PN10 PN10 82 450 257 220 1530 108
779-0400-61-0000005 400 PN10 PN10 95 450 291 220 1640 200
779-0450-61-0000006 450 PN10 PN 6 95 450 317 220 1750 228
779-0500-61-0000014 500 PN10 PN 6 121 650 345 288 1930 286
Enquiry
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Components

1. Body Stainless steel CF8M
2. Gate Stainless steel AISI 316
3. Seal EPDM rubber
4. Packing PTFE
5. Gland follower Steel S235JR
6. Yoke Steel S275JR
7. Grease nipple Steel, zinc coated
8. Stem Stainless steel
9. Protection cover Steel S275JR
10. Gearbox

Standards

  • Flange drilling to EN1092, PN10
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