AVK CONSTANT FLOW CONTROL VALVE, PN16

Full bore, AISI304 fittings. EPDM/WRAS rubber, 300µm blue EP

Luka Helijic AVK

Luka Heljic

Business Development Manager - Air & Control Valves

Control valve, constant flow, for drinking water or other neutral liquids to max. 70°C. The series offer two ranges, reduced bore and full bore. The full bore has increased capacity comparred to reduced bore. For further info on reduced bore see separate datasheet 879/002X99-001.

AVK series 879 diaphragm actuated flow control valves (CFV) automatically maintain a constant flow regardless of changes in inlet or outlet pressure. Feed back to the regulating system is by means of the pressure drop across an orifice at the outlet. The replaceable orifice makes it possible to regulate within a large range of flows and still keep the precision. Setting and adjustment on a handwheel on the pilot.

Variant 879/102X99-001
Connection: Flanged
Material: Ductile Iron
DN: DN50 - DN600
PN: PN 10/16

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, 300 micron, 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
  • 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
  • Available with Position Indicator upon request

Reference nos. and dimensions:

Ref. no. DN
mm
Flow Range
m3/h
Flange
drillling
D1
mm
D2
mm
D3
mm
DH
mm
W
mm
H3
mm
L
mm
L1
mm
Theoretical
weight / kg
Enquiry
879-0050-10-14400209999 50 3-11 PN10/16 99 125 165 19 235 385 230 237 17
879-0050-10-14400229999 50 10-35 PN10/16 99 125 165 19 235 385 230 237 17
879-0065-10-14400209999 65 5-17 PN10/16 118 145 185 19 255 415 290 307 22
879-0065-10-14400229999 65 15-58 PN10/16 118 145 185 19 255 415 290 307 22
879-0080-10-14400209999 80 9-33 PN10/16 132 160 200 19 270 430 310 327 26
879-0080-10-14400229999 80 26-90 PN10/16 132 160 200 19 270 430 310 327 26
879-0100-10-14400209999 100 14-51 PN10/16 156 180 220 19 290 450 350 367 35
879-0100-10-14400229999 100 42-130 PN10/16 156 180 220 19 290 450 350 367 35
879-0150-10-14400209999 150 30-105 PN10/16 211 240 285 23 355 585 480 497 81
879-0150-10-14400239999 150 100-300 PN10/16 211 240 285 23 355 585 480 497 81
879-0200-10-04400209999 200 50-190 PN10 266 295 340 23 400 700 600 617 137
879-0200-10-04400239999 200 160-480 PN10 266 295 340 23 400 655 600 617 137
879-0200-10-14400209999 200 50-190 PN16 266 295 340 23 400 700 600 617 137
879-0200-10-14400239999 200 160-480 PN16 266 295 340 23 400 700 600 617 137
879-0250-10-04400209999 250 80-250 PN10 319 350 395 23 465 780 730 747 198
879-0250-10-04400239999 250 250-840 PN10 319 350 395 23 465 780 730 747 198
879-0250-10-14400209999 250 80-250 PN16 319 355 405 28 465 780 730 747 198
879-0250-10-14400239999 250 250-840 PN16 319 355 405 28 465 780 730 747 198
879-0300-10-04400209999 300 120-420 PN10 370 400 445 23 520 845 850 867 255
879-0300-10-04400239999 300 400-1100 PN10 370 400 445 23 520 845 850 867 255
879-0300-10-14400209999 300 120-420 PN16 370 410 460 28 520 845 850 867 255
879-0300-10-14400239999 300 400-1100 PN16 370 410 460 28 520 845 850 867 255
879-0350-10-04400209999 350 160-500 PN10 429 460 505 23 580 970 980 997 456
879-0350-10-04400229999 350 350-1250 PN10 429 460 505 23 580 970 980 997 456
879-0350-10-04400239999 350 600-1600 PN10 429 460 505 23 580 970 980 997 456
879-0350-10-14400209999 350 160-500 PN16 429 470 520 28 580 970 980 997 456
879-0350-10-14400229999 350 350-1250 PN16 429 470 520 28 580 970 980 997 456
879-0350-10-14400239999 350 600-1600 PN16 429 470 520 28 580 970 980 997 456
879-0400-10-04400209999 400 220-620 PN10 480 515 565 28 640 1030 1100 1117 542
879-0400-10-04400229999 400 450-1500 PN10 480 515 565 28 640 1030 1100 1117 542
879-0400-10-04400239999 400 660-1950 PN10 480 515 565 28 640 1030 1100 1117 542
879-0400-10-14400209999 400 220-620 PN16 480 525 580 31 640 1030 1100 1117 542
879-0400-10-14400229999 400 450-1500 PN16 480 525 580 31 640 1030 1100 1117 542
879-0400-10-14400239999 400 660-1950 PN16 480 525 580 31 640 1030 1100 1117 542
879-0450-10-04400209999 450 270-800 PN10 530 565 615 28 700 1210 1200 1217 868
879-0450-10-04400229999 450 570-1900 PN10 530 565 615 28 700 1210 1200 1217 868
879-0450-10-04400239999 450 900-2650 PN10 530 565 615 28 700 1210 1200 1217 868
879-0450-10-14400209999 450 270-800 PN16 548 585 640 31 700 1210 1200 1217 868
879-0450-10-14400229999 450 570-1900 PN16 548 585 640 31 700 1210 1200 1217 868
879-0450-10-14400239999 450 900-2650 PN16 548 585 640 31 700 1210 1200 1217 868
879-0500-10-04400209999 500 330-950 PN10 582 620 670 28 775 1280 1250 1267 1113
879-0500-10-04400229999 500 700-2400 PN10 582 620 670 28 775 1280 1250 1267 1113
879-0500-10-04400239999 500 1050-3000 PN10 582 620 670 28 775 1280 1250 1267 1113
879-0500-10-14400209999 500 330-950 PN16 609 650 715 34 775 1280 1250 1267 1113
879-0500-10-14400229999 500 700-2400 PN16 609 650 715 34 775 1280 1250 1267 1113
879-0500-10-14400239999 500 1050-3000 PN16 609 650 715 34 775 1280 1250 1267 1113
879-0600-10-04400209999 600 500-1400 PN10 682 780 780 31 900 1430 1450 1467 1672
879-0600-10-04400229999 600 950-3300 PN10 682 780 780 31 900 1430 1450 1467 1672
879-0600-10-04400239999 600 1600-4450 PN10 682 780 780 31 900 1430 1450 1467 1672
879-0600-10-14400209999 600 500-1400 PN16 720 770 840 37 900 1430 1450 1467 1672
879-0600-10-14400229999 600 950-3300 PN16 720 770 840 37 900 1430 1450 1467 1672
879-0600-10-14400239999 600 1600-4450 PN16 720 770 840 37 900 1430 1450 1467 1672

Downloads

Datasheets
Certificate(s)
Installation, Operation & Maintenance

Components

1. Body Ductile iron GJS-500-7
2. O-ring EPDM
3. O-ring EPDM
4. Plug sealing EPDM
5. Hex Nut Stainless steel A2
6. Washer Stainless steel 304
7. Bolts Stainless steel A2
8. Diaphragm EPDM
9. Spring Stainless steel 304
10. Flat Seal EPDM
11. Flat Seal EPDM
12. Cover Ductile iron GJS-500-7
13. Hex Nut Stainless steel A2
14. Diaphragm Support Ductile iron GJS-500-7
15. Obturator Ductile iron GJS-500-7
16. Regulating Plug Stainless steel 304
17. Seat Stainless steel 304
18. Stem Stainless steel 304
19. Pilot valve Stainless steel
20. Stainless steel 304
21. Ball valve
22. Needle valve Stainless steel
23.

Test/Approvals

  • Hydraulic test: 1.5 x PN |
  • Tested according to EN12266-1. Seat: 1.1 x PN (in Bar), Body: 1.5 x PN (in Bar)

     

  • WRAS approved Materials

Standards

  • Designed according to EN 1074 - 5
  • Face to face according to EN558 Table 2 Basic Series 1
  • Standard flange drilling to EN1092 (ISO 7005-2), PN 10/16
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