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AVK MODULATING FLOAT LEVEL CONTROL VALVE, PN10/16

Full bore, AISI304/DI trim, AISI304 pilot, brass fittings/accs., EPDM/WRAS rubber, protected pos. ind., ECO float

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 879/105X99-001
Connection: Flanged
Material: Ductile iron
DN: DN50 - 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
  • ECO 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		 D1
mm		 D2
mm		 D3
mm		 Dh
mm		 W
mm		 H3
mm		 L
mm		 Theoretical
weight/kg		 Notes
879-0050-10-14400559999 50 PN16 99 125 165 19 237 321 230 34
879-0050-10-144005599A0 50 PN16 99 125 165 19 237 407 230 34 Incl. position indicator
879-0065-10-14400559999 65 PN16 118 145 185 19 245 352 290 39
879-0065-10-144005599A0 65 PN16 118 145 185 19 245 436 290 39 Incl. position indicator
879-0080-10-14400559999 80 PN16 132 160 200 19 260 367 310 43
879-0080-10-144005599A0 80 PN16 132 160 200 19 260 451 310 43 Incl. position indicator
879-0100-10-14400559999 100 PN16 156 180 220 19 280 390 350 52
879-0100-10-144005599A0 100 PN16 156 180 220 19 280 474 350 52 Incl. position indicator
879-0150-10-14400559999 150 PN16 211 240 285 23 410 523 480 98
879-0150-10-144005599A0 150 PN16 211 240 285 23 410 607 480 98 Incl. position indicator
879-0200-10-04400559999 200 PN10 266 295 340 23 510 677 600 154
879-0200-10-044005599A0 200 PN10 266 295 340 23 510 774 600 154 Incl. position indicator
879-0200-10-14400559999 200 PN16 266 295 340 23 510 677 600 154
879-0200-10-144005599A0 200 PN16 266 295 340 23 510 774 600 154 Incl. position indicator
879-0250-10-04400559999 250 PN10 319 350 395 23 555 757 730 215
879-0250-10-044005599A0 250 PN10 319 350 395 23 555 854 730 215 Incl. position indicator
879-0250-10-14400559999 250 PN16 319 355 405 28 555 757 730 215
879-0250-10-144005599A0 250 PN16 319 355 405 28 555 854 730 215 Incl. position indicator
879-0300-10-04400559999 300 PN10 370 400 445 23 605 826 850 272
879-0300-10-044005599A0 300 PN10 370 400 445 23 605 923 850 272 Incl. position indicator
879-0300-10-14400559999 300 PN16 370 410 460 28 605 826 850 272
879-0300-10-144005599A0 300 PN16 370 410 460 28 605 923 850 272 Incl. position indicator
879-0350-10-04400559999 350 PN10 429 460 505 23 710 958 980 473
879-0350-10-044005599A0 350 PN10 429 460 505 23 710 1045 980 473 Incl. position indicator
879-0350-10-14400559999 350 PN16 429 470 520 28 710 958 980 473
879-0350-10-144005599A0 350 PN16 429 470 520 28 710 1045 980 473 Incl. position indicator
879-0400-10-04400559999 400 PN10 480 515 565 28 780 1020 1100 559
879-0400-10-044005599A0 400 PN10 480 515 565 28 780 1183 1100 559 Incl. position indicator
879-0400-10-14400559999 400 PN16 480 525 580 31 780 1020 1100 559
879-0400-10-144005599A0 400 PN16 480 525 580 31 780 1183 1100 559 Incl. position indicator
879-0450-10-04400559999 450 PN10 530 565 615 28 930 1198 1200 885
879-0450-10-044005599A0 450 PN10 530 565 615 28 930 1361 1200 885 Incl. position indicator
879-0450-10-14400559999 450 PN16 548 585 640 31 930 1198 1200 885
879-0450-10-144005599A0 450 PN16 548 585 640 31 930 1361 1200 885 Incl. position indicator
879-0500-10-04400559999 500 PN10 582 620 670 28 1020 1272 1250 1130
879-0500-10-044005599A0 500 PN10 582 620 670 28 1020 1435 1250 1130 Incl. position indicator
879-0500-10-14400559999 500 PN16 609 650 715 34 1020 1272 1250 1130
879-0500-10-144005599A0 500 PN16 609 650 715 34 1020 1435 1250 1130 Incl. position indicator
879-0600-10-04400559999 600 PN10 682 725 780 31 1190 1421 1450 1688
879-0600-10-044005599A0 600 PN10 682 725 780 31 1190 1584 1450 1688 Incl. position indicator
879-0600-10-14400559999 600 PN16 720 770 840 37 1190 1421 1450 1688
879-0600-10-144005599A0 600 PN16 720 770 840 37 1190 1584 1450 1688 Incl. position indicator
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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