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AVK FIXED CONE DISCHARGE VALVE, PN10/16

Shaft and wormgear operated, PN16

CHAN

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Chan Chee Leong

Senior Manager, Sales and Marketing

Fixed cone shaft-worm gear-sleeve operated discharge valve for drinking water and neutral liquids to max. 70°C

The AVK fixed cone (Howell-Bunger) discharge valves are designed to safely dissipate the surplus energy from large amounts of rapidly flowing water. Installed at the outlet of dams or reservoirs and discharging directly into the atmosphere, they operate safely minimizing erosion or other damage to the suroundings.

Variant 857/1-002
Connection: Flanged
Material: Ductile iron
DN: DN400 - DN2200
PN: PN 10

Features

  • End of line installation, for high volume dam or reservoir discharge.
  • Hydraulic balance, no differential loads, low operating effort, small actuator.
  • Resilient seal for drop-tight shut off.
  • Effective dissipation of the flowing water kinetic energy before it strikes any boundary surface, minimum wear/erosion, no cavitation risk.
  • Acid proof stainless steel sleeve with epoxy coated ductile iron components for high corrosion resistance.
  • Single piece casted body for rigidity and strength, downstream end is formed as an inverted cone for dissipation of water energy.
  • The worm and double bevel gear units are all totally enclosed grease filled assemblies, designed for long periods of maintenance free service.
  • l Profile sealing ring replaceable without disassembling the valve from the pipeline.
  • Fine screw thread for slow speed operation and fine adjustment, good positioning and gradual flow change.

Downloads

Datasheet

Reference nos. and dimensions:

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AVK ref. no. Gross Price
MYR		 DN
mm		 Flange
drilling		 L1
mm		 L
mm		 H
mm		 H1
mm		 W
mm		 Theoretical
weight/kg
857-0400-1-1010000 price on request 400 PN16 1059 1135 381 770.5 1052 1200
857-0600-1-1010000 price on request 600 PN16 1351 1446 457 851 1259 1500
857-0700-1-1010000 price on request 700 PN16 1524 1619 550 807 1410 1900
857-0800-1-1010000 price on request 800 PN16 1524 1619 533 972.5 1412 2000
857-0900-1-1010000 price on request 900 PN16 1676 1808 610 1001.5 1592.5 2218
857-1000-1-1010000 price on request 1000 PN16 1796 1928 720 1075.5 1690 3800
857-1200-1-1210000 price on request 1200 PN16 2132 2264 838 1334.5 2074 4500
857-1400-1-1210000 price on request 1400 PN16 2414 2546 916 1456.5 2524 6000
857-1500-1-1010000 price on request 1500 PN16 2415 2521 916 1339 2286 6500
857-1900-1-1210000 price on request 1900 PN16 2803 2929 1344 1642 2894 11200
857-2200-4-3210000 price on request 2200 PN10 3347 3515 1350 2239 3492 15300
Enquiry
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Components

1. Stud bolt Stainless steel A4-70
2. Washer Stainless steel 1.4401
3. Lift bracket Stainless steel 1.4301
4. Bolt Stainless steel A4-70
5. Lock washer Stainless steel A4-70
6. Body Ductile iron GJS-500-7
7. Guide strip upstream Alu-bronze CW307G
8. Sealing strip Neoprene
9. Rivet pin Bronze PB102
10. Sleeve Stainless steel 1.4401
11. Face ring seal NBR rubber
12. Screw Stainless steel A4-70
13. Seal retainer ring Ductile iron GJS-500-7
14. Lift bracket Stainless steel 1.4301
15. Indicator plate Stainless steel 1.4401
16. Nipple Brass DZR CW602N
17. Gear unit Cast steel
18. Key Stainless steel 1.4401
19. Drive shaft, LH Alu-bronze CC333G
20. Bracket side gearbox Steel S275JR
21. Backing plate bracket Stainless steel 1.4401
22. Backing plate nut Stainless steel 1.4401
23. Drive nut, LH Stainless steel 1.4401
24. Lock nut Stainless steel 1.4401
25. Bushing Alu-bronze CW307G
26. Protection cover PVC
27. Gearbox housing Ductile iron GJS-500-7
28. Bracket main gearbox Steel S275JR
29. Universal joint 30/30 Stainless steel 1.4301
30. Jubilee clip Stainless steel 1.4401
31. Transfer shaft Stainless steel 1.4401
32. Universal joint 30/15 Stainless steel 1.4301
33. Cover Rubber

Test/Approvals

  • Test according to EN 12266-1, Leakage Rate A

Standards

  • Flange drilling to EN1092, PN10/16
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