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AVK MODULATING FLOAT LEVEL CONTROL VALVE, PN10/16

Reduced bore, AISI304/DI trim, AISI304 pilot, brass fittings/accs., EPDM/WRAS rubber

Control valve, modulating float level, for drinking water or other neutral liquids to max. 70°C

AVK series 879 diaphragm actuated level control valves automatically control the water level in a tank or a reservoir by means of a float.

The float activates the pilot that controls the main valve to keep the level at the predetermined setpoint. Control mode is modulating.

Both full bore and reduced bore versions are available with the full bore having full capacity and the reduced bore having increased precision and smooth regulation at low flow rates..

Variant 879/005X99-002
Connection: Flanged
Material: Ductile iron
DN: DN65 - DN600
PN: PN10/16

Features

  • The lifted seat design controls the flow around the plug so that in case of cavitation this happens with minimal damage away from plug and seat
  • The parabolic shape of the plug creates a smooth regulating characteristic with low gain around the near-closed positions improving control performance at low flow
  • Non-symmetric axial position of rubber diaphragm results in low stretch stress when closed
  • Body and bonnet of ductile iron coated with fusion bonded epoxy, 300µm, GSK approved, RAL 5017, according to DIN 3476 and WRAS-DVGW/W270/UBA
  • All rubber parts approved for drinking water
  • All non-coated internals made of stainless steel or bronze
  • Seat and pilot in stainless steel AISI 304
  • A needle valve fitted between the upstream side and the control chamber allows for adjustment of the regulation reaction time
  • Closing the needle valve isolates the control chamber and fixes the position of the main valve allowing for service of the pilot valve
  • Fittings, pipes and accessories in Ni-plated brass
  • Adjustable float in stainless steel

Downloads

Datasheet
Related Datasheets
Tender Text
Certificate(s)
Installation, operation and maintenance manuals

Reference nos. and dimensions:

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Reference no. DN
mm		 Flange
drilling		 Rod length
mm		 D1
mm		 D2
mm		 D3
mm		 Dh
mm		 W
mm		 H3
mm		 L
mm		 Theoretical
weight/kg
879-0065-00-14400509999 65 PN16 500 118 145 185 19 244 339 290 19
879-0080-00-14400509999 80 PN16 500 132 160 200 19 257 362 310 23
879-0100-00-14400509999 100 PN16 500 156 180 220 19 276 376 350 28
879-0125-00-14400509999 125 PN16 500 184 210 250 19 296 395 400 33
879-0150-00-14400509999 150 PN16 500 211 240 285 23 302 429 480 75
879-0200-00-04400509999 200 PN10 500 266 295 340 23 410 588 600 92
879-0200-00-14400509999 200 PN16 500 266 295 340 23 410 588 600 92
879-0250-00-04400509999 250 PN10 500 319 350 395 23 510 706 730 152
879-0250-00-14400509999 250 PN16 500 319 355 405 28 510 706 730 152
879-0300-00-04400509999 300 PN10 500 370 400 445 23 555 782 850 217
879-0300-00-14400509999 300 PN16 500 370 410 460 28 555 782 850 217
879-0350-00-04400509999 350 PN10 500 429 460 505 23 605 872 980 322
879-0350-00-14400509999 350 PN16 500 429 470 520 28 605 872 980 322
879-0400-00-04400509999 400 PN10 500 480 515 565 28 710 996 1100 482
879-0400-00-14400509999 400 PN16 500 480 525 580 31 710 996 1100 492
879-0450-00-04400509999 450 PN10 500 530 565 615 28 780 1057 1200 627
879-0450-00-14400509999 450 PN16 500 548 585 640 31 780 1057 1200 627
879-0500-00-04400509999 500 PN10 500 582 620 670 28 929 1245 1250 927
879-0500-00-14400509999 500 PN16 500 609 650 715 34 929 1245 1250 927
879-0600-00-04400509999 600 PN10 500 682 725 780 31 1020 1355 1450 1262
879-0600-00-14400509999 600 PN16 500 720 770 840 37 1020 1355 1450 1262
Enquiry
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Components

1. Body Ductile iron EN-GJS-500-7
2. O-ring EPDM rubber
3. O-ring EPDM rubber
4. Plug sealing EPDM rubber
5. Hex nut Stainless steel A2
6. Washer Stainless steel AISI 304
7. Bolt Stainless steel A2
8. Diaphragm EPDM rubber
9. Spring Stainless steel AISI 304
10. Flat seal EPDM rubber
11. Flat seal EPDM rubber
12. Cover Ductile iron EN-GJS-500-7
13. Hex nut Stainless steel A2
14. Diaphragm support Ductile iron EN-GJS-500-7
15. Obturator Ductile iron EN-GJS-500-7
16. Regulating plug Stainless steel AISI 304
17. Seat Stainless steel AISI 304
18. Stem Stainless steel AISI 304
19. Pilot valve Stainless steel
20. Bush Brass
21. Ball valve Brass, Ni-plated
22. Y-strainer Brass

Test/Approvals

  • Tested according to EN 12266-1 |
  • Hydraulic test: 1.5 x PN
  • Approved according to ACS-France
  • Approved according to WRAS Certificate 2010005, max 50°C

Standards

  • EN 1074-5
  • Face-to-face dimension according to EN 558, series 1
  • Flange drilling to EN1092, PN10/16
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