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AVK CONST. FLOW/PRESS. RED. CONTROL VALVE, PN10/16

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

Control valve, const. flow/press. red., for drinking water or other neutral liquids to max. 70°C

AVK series 879/2X7X diaphragm actuated control valves combine a constant flow mode (CFV) with a pressure reducing control mode (PRV). The system operates in two ways, either 1) maintain a constant flow regardless of changes in inlet or outlet pressure as long as the outlet pressure is below the PRV setpoint or 2) maintain a constant outlet pressure regardless of changes in flow demand as long as the flow is below the CFV setpoint.

Feed back to the flow regulating system is by means of the pressure drop across an orifice.

Replaceable orifices and springs inside the pilots make it possible to regulate within a large range of flows and pressures and still keep the precision. Setting and adjustment on control knobs on the pilots.

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 879/102X7X-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
  • Fittings, pipes and accessories in Ni-plated brass
  • A needle valve between upstream side and 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

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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		 Flow range
m3/h		 Press. Range
bar		 D1
mm		 D2
mm		 D3
mm		 Dh
mm		 W
mm		 H3
mm		 L
mm		 L1
mm		 Theoretical
weight/kg		 Notes
879-0050-10-14400207299 50 PN16 3-11 2.5-21 99 125 165 19 245 470 230 247 19
879-0050-10-144002072A0 50 PN16 3-11 2.5-21 99 125 165 19 245 470 230 247 19 Incl. position indicator
879-0050-10-14400217299 50 PN16 7-25 2.5-21 99 125 165 19 245 470 230 247 19
879-0050-10-144002172A0 50 PN16 7-25 2.5-21 99 125 165 19 245 470 230 247 19 Incl. position indicator
879-0050-10-14400227299 50 PN16 10-35 2.5-21 99 125 165 19 245 470 230 247 19
879-0050-10-144002272A0 50 PN16 10-35 2.5-21 99 125 165 19 245 470 230 247 19 Incl. position indicator
879-0065-10-14400207299 65 PN16 5-17 2.5-21 118 145 185 19 255 505 290 307 24
879-0065-10-144002072A0 65 PN16 5-17 2.5-21 118 145 185 19 255 505 290 307 24 Incl. position indicator
879-0065-10-14400217299 65 PN16 8-30 2.5-21 118 145 185 19 255 505 290 307 24
879-0065-10-144002172A0 65 PN16 8-30 2.5-21 118 145 185 19 255 505 290 307 24 Incl. position indicator
879-0065-10-14400227299 65 PN16 15-58 2.5-21 118 145 185 19 255 505 290 307 24
879-0065-10-144002272A0 65 PN16 15-58 2.5-21 118 145 185 19 255 505 290 307 24 Incl. position indicator
879-0080-10-14400207299 80 PN16 9-33 2.5-21 132 160 200 19 270 520 310 327 28
879-0080-10-144002072A0 80 PN16 9-33 2.5-21 132 160 200 19 270 520 310 327 28 Incl. position indicator
879-0080-10-14400217299 80 PN16 15-57 2.5-21 132 160 200 19 270 520 310 327 28
879-0080-10-144002172A0 80 PN16 15-57 2.5-21 132 160 200 19 270 520 310 327 28 Incl. position indicator
879-0080-10-14400227299 80 PN16 26-90 2.5-21 132 160 200 19 270 520 310 327 28
879-0080-10-144002272A0 80 PN16 26-90 2.5-21 132 160 200 19 270 520 310 327 28 Incl. position indicator
879-0100-10-14400207299 100 PN16 14-51 2.5-21 156 180 220 19 290 540 350 367 37
879-0100-10-144002072A0 100 PN16 14-51 2.5-21 156 180 220 19 290 540 350 367 37 Incl. position indicator
879-0100-10-14400217299 100 PN16 25-90 2.5-21 156 180 220 19 290 540 350 367 37
879-0100-10-144002172A0 100 PN16 25-90 2.5-21 156 180 220 19 290 540 350 367 37 Incl. position indicator
879-0100-10-14400227299 100 PN16 42-130 2.5-21 156 180 220 19 290 540 350 367 37
879-0100-10-144002272A0 100 PN16 42-130 2.5-21 156 180 220 19 290 540 350 367 37 Incl. position indicator
879-0150-10-14400207299 150 PN16 30-105 2.5-21 211 240 285 23 410 625 480 497 83
879-0150-10-144002072A0 150 PN16 30-105 2.5-21 211 240 285 23 410 625 480 497 83 Incl. position indicator
879-0150-10-14400217299 150 PN16 50-190 2.5-21 211 240 285 23 410 625 480 497 83
879-0150-10-144002172A0 150 PN16 50-190 2.5-21 211 240 285 23 410 625 480 497 83 Incl. position indicator
879-0150-10-14400227299 150 PN16 80-220 2.5-21 211 240 285 23 410 625 480 497 83
879-0150-10-144002272A0 150 PN16 80-220 2.5-21 211 240 285 23 410 625 480 497 83 Incl. position indicator
879-0150-10-14400237299 150 PN16 100-300 2.5-21 211 240 285 23 410 625 480 497 83
879-0150-10-144002372A0 150 PN16 100-300 2.5-21 211 240 285 23 410 625 480 497 83 Incl. position indicator
879-0200-10-04400207299 200 PN10 50-190 2.5-21 266 295 340 23 510 690 600 617 83
879-0200-10-044002072A0 200 PN10 50-190 2.5-21 266 295 340 23 510 774 600 617 83 Incl. position indicator
879-0200-10-04400217299 200 PN10 88-300 2.5-21 266 295 340 23 510 690 600 617 139
879-0200-10-044002172A0 200 PN10 88-300 2.5-21 266 295 340 23 510 774 600 617 139 Incl. position indicator
879-0200-10-04400227299 200 PN10 120-370 2.5-21 266 295 340 23 510 690 600 617 139
879-0200-10-044002272A0 200 PN10 120-370 2.5-21 266 295 340 23 510 774 600 617 139 Incl. position indicator
879-0200-10-04400237299 200 PN10 160-480 2.5-21 266 295 340 23 510 690 600 617 139
879-0200-10-044002372A0 200 PN10 160-480 2.5-21 266 295 340 23 510 774 600 617 139 Incl. position indicator
879-0200-10-14400207299 200 PN16 50-190 2.5-21 266 295 340 23 510 690 600 617 139
879-0200-10-144002072A0 200 PN16 50-190 2.5-21 266 295 340 23 510 774 600 617 139 Incl. position indicator
879-0200-10-14400217299 200 PN16 88-300 2.5-21 266 295 340 23 510 690 600 617 139
879-0200-10-144002172A0 200 PN16 88-300 2.5-21 266 295 340 23 510 774 600 617 139 Incl. position indicator
879-0200-10-14400227299 200 PN16 120-370 2.5-21 266 295 340 23 510 690 600 617 139
879-0200-10-144002272A0 200 PN16 120-370 2.5-21 266 295 340 23 510 774 600 617 139 Incl. position indicator
879-0200-10-14400237299 200 PN16 160-480 2.5-21 266 295 340 23 510 690 600 617 139
879-0200-10-144002372A0 200 PN16 160-480 2.5-21 266 295 340 23 510 774 600 617 139 Incl. position indicator
879-0250-10-04400207299 250 PN10 80-250 2.5-21 319 350 395 23 555 770 730 747 200
879-0250-10-044002072A0 250 PN10 80-250 2.5-21 319 350 395 23 555 854 730 747 200 Incl. position indicator
879-0250-10-04400217299 250 PN10 120-400 2.5-21 319 350 395 23 555 770 730 747 200
879-0250-10-044002172A0 250 PN10 120-400 2.5-21 319 350 395 23 555 854 730 747 200 Incl. position indicator
879-0250-10-04400227299 250 PN10 200-600 2.5-21 319 350 395 23 555 770 730 747 200
879-0250-10-044002272A0 250 PN10 200-600 2.5-21 319 350 395 23 555 854 730 747 200 Incl. position indicator
879-0250-10-04400237299 250 PN10 250-840 2.5-21 319 350 395 23 555 770 730 747 200
879-0250-10-044002372A0 250 PN10 250-840 2.5-21 319 350 395 23 555 854 730 747 200 Incl. position indicator
879-0250-10-14400207299 250 PN16 80-250 2.5-21 319 355 405 28 555 770 730 747 200
879-0250-10-144002072A0 250 PN16 80-250 2.5-21 319 355 405 28 555 854 730 747 200 Incl. position indicator
879-0250-10-14400217299 250 PN16 120-400 2.5-21 319 355 405 28 555 770 730 747 200
879-0250-10-144002172A0 250 PN16 120-400 2.5-21 319 355 405 28 555 854 730 747 200 Incl. position indicator
879-0250-10-14400227299 250 PN16 200-600 2.5-21 319 355 405 28 555 770 730 747 200
879-0250-10-144002272A0 250 PN16 200-600 2.5-21 319 355 405 28 555 854 730 747 200 Incl. position indicator
879-0250-10-14400237299 250 PN16 250-840 2.5-21 319 355 405 28 555 770 730 747 200
879-0250-10-144002372A0 250 PN16 250-840 2.5-21 319 355 405 28 555 854 730 747 200 Incl. position indicator
879-0300-10-04400207299 300 PN10 120-420 2.5-21 370 400 445 23 605 840 850 867 257
879-0300-10-044002072A0 300 PN10 120-420 2.5-21 370 400 445 23 605 923 850 867 257 Incl. position indicator
879-0300-10-04400217299 300 PN10 170-550 2.5-21 370 400 445 23 605 840 850 867 257
879-0300-10-044002172A0 300 PN10 170-550 2.5-21 370 400 445 23 605 923 850 867 257 Incl. position indicator
879-0300-10-04400227299 300 PN10 250-870 2.5-21 370 400 445 23 605 840 850 867 257
879-0300-10-044002272A0 300 PN10 250-870 2.5-21 370 400 445 23 605 923 850 867 257 Incl. position indicator
879-0300-10-04400237299 300 PN10 400-1100 2.5-21 370 400 445 23 605 840 850 867 257
879-0300-10-044002372A0 300 PN10 400-1100 2.5-21 370 400 445 23 605 923 850 867 257 Incl. position indicator
879-0300-10-14400207299 300 PN16 120-420 2.5-21 370 410 460 28 605 840 850 867 257
879-0300-10-144002072A0 300 PN16 120-420 2.5-21 370 410 460 28 605 923 850 867 257 Incl. position indicator
879-0300-10-14400217299 300 PN16 170-550 2.5-21 370 410 460 28 605 840 850 867 257
879-0300-10-144002172A0 300 PN16 170-550 2.5-21 370 410 460 28 605 923 850 867 257 Incl. position indicator
879-0300-10-14400227299 300 PN16 250-870 2.5-21 370 410 460 28 605 840 850 867 257
879-0300-10-144002272A0 300 PN16 250-870 2.5-21 370 410 460 28 605 923 850 867 257 Incl. position indicator
879-0300-10-14400237299 300 PN16 400-1100 2.5-21 370 410 460 28 605 840 850 867 257
879-0300-10-144002372A0 300 PN16 400-1100 2.5-21 370 410 460 28 605 923 850 867 257 Incl. position indicator
879-0350-10-04400207299 350 PN10 160-500 2.5-21 429 460 505 23 710 960 980 997 458
879-0350-10-044002072A0 350 PN10 160-500 2.5-21 429 460 505 23 710 1045 980 997 458 Incl. position indicator
879-0350-10-04400217299 350 PN10 220-700 2.5-21 429 460 505 23 710 960 980 997 458
879-0350-10-044002172A0 350 PN10 220-700 2.5-21 429 460 505 23 710 1045 980 997 458 Incl. position indicator
879-0350-10-04400227299 350 PN10 350-1250 2.5-21 429 460 505 23 710 960 980 997 458
879-0350-10-044002272A0 350 PN10 350-1250 2.5-21 429 460 505 23 710 1045 980 997 458 Incl. position indicator
879-0350-10-04400237299 350 PN10 600-1600 2.5-21 429 460 505 23 710 960 980 997 458
879-0350-10-044002372A0 350 PN10 600-1600 2.5-21 429 460 505 23 710 1045 980 997 458 Incl. position indicator
879-0350-10-14400207299 350 PN16 160-500 2.5-21 429 470 520 28 710 960 980 997 458
879-0350-10-144002072A0 350 PN16 160-500 2.5-21 429 470 520 28 710 1045 980 997 458 Incl. position indicator
879-0350-10-14400217299 350 PN16 220-700 2.5-21 429 470 520 28 710 960 980 997 458
879-0350-10-144002172A0 350 PN16 220-700 2.5-21 429 470 520 28 710 1045 980 997 458 Incl. position indicator
879-0350-10-14400227299 350 PN16 350-1250 2.5-21 429 470 520 28 710 960 980 997 458
879-0350-10-144002272A0 350 PN16 350-1250 2.5-21 429 470 520 28 710 1045 980 997 458 Incl. position indicator
879-0350-10-14400237299 350 PN16 600-1600 2.5-21 429 470 520 28 710 960 980 997 458
879-0350-10-144002372A0 350 PN16 600-1600 2.5-21 429 470 520 28 710 1045 980 997 458 Incl. position indicator
879-0400-10-04400207299 400 PN10 220-620 2.5-21 480 515 565 28 780 1020 1100 1117 544
879-0400-10-044002072A0 400 PN10 220-620 2.5-21 480 515 565 28 780 1183 1100 1117 544 Incl. position indicator
879-0400-10-04400217299 400 PN10 300-1000 2.5-21 480 515 565 28 780 1020 1100 1117 544
879-0400-10-044002172A0 400 PN10 300-1000 2.5-21 480 515 565 28 780 1183 1100 1117 544 Incl. position indicator
879-0400-10-04400227299 400 PN10 450-1500 2.5-21 480 515 565 28 780 1020 1100 1117 544
879-0400-10-044002272A0 400 PN10 450-1500 2.5-21 480 515 565 28 780 1183 1100 1117 544 Incl. position indicator
879-0400-10-04400237299 400 PN10 660-1950 2.5-21 480 515 565 28 780 1020 1100 1117 544
879-0400-10-044002372A0 400 PN10 660-1950 2.5-21 480 515 565 28 780 1183 1100 1117 544 Incl. position indicator
879-0400-10-14400207299 400 PN16 220-620 2.5-21 480 525 580 31 780 1020 1100 1117 544
879-0400-10-144002072A0 400 PN16 220-620 2.5-21 480 525 580 31 780 1183 1100 1117 544 Incl. position indicator
879-0400-10-14400217299 400 PN16 300-1000 2.5-21 480 525 580 31 780 1020 1100 1117 544
879-0400-10-144002172A0 400 PN16 300-1000 2.5-21 480 525 580 31 780 1183 1100 1117 544 Incl. position indicator
879-0400-10-14400227299 400 PN16 450-1500 2.5-21 480 525 580 31 780 1020 1100 1117 544
879-0400-10-144002272A0 400 PN16 450-1500 2.5-21 480 525 580 31 780 1183 1100 1117 544 Incl. position indicator
879-0400-10-14400237299 400 PN16 660-1950 2.5-21 480 525 580 31 780 1020 1100 1117 544
879-0400-10-144002372A0 400 PN16 660-1950 2.5-21 480 525 580 31 780 1183 1100 1117 544 Incl. position indicator
879-0450-10-04400207299 450 PN10 270-800 2.5-21 530 565 615 28 930 1200 1200 1217 870
879-0450-10-044002072A0 450 PN10 270-800 2.5-21 530 565 615 28 930 1361 1200 1217 870 Incl. position indicator
879-0450-10-04400217299 450 PN10 400-1200 2.5-21 530 565 615 28 930 1200 1200 1217 870
879-0450-10-044002172A0 450 PN10 400-1200 2.5-21 530 565 615 28 930 1361 1200 1217 870 Incl. position indicator
879-0450-10-04400227299 450 PN10 570-1900 2.5-21 530 565 615 28 930 1200 1200 1217 870
879-0450-10-044002272A0 450 PN10 570-1900 2.5-21 530 565 615 28 930 1361 1200 1217 870 Incl. position indicator
879-0450-10-04400237299 450 PN10 900-2650 2.5-21 530 565 615 28 930 1200 1200 1217 870
879-0450-10-044002372A0 450 PN10 900-2650 2.5-21 530 565 615 28 930 1361 1200 1217 870 Incl. position indicator
879-0450-10-14400207299 450 PN16 270-800 2.5-21 548 585 640 31 930 1200 1200 1217 870
879-0450-10-144002072A0 450 PN16 270-800 2.5-21 548 585 640 31 930 1361 1200 1217 870 Incl. position indicator
879-0450-10-14400217299 450 PN16 400-1200 2.5-21 548 585 640 31 930 1200 1200 1217 870
879-0450-10-144002172A0 450 PN16 400-1200 2.5-21 548 585 640 31 930 1361 1200 1217 870 Incl. position indicator
879-0450-10-14400227299 450 PN16 570-1900 2.5-21 548 585 640 31 930 1200 1200 1217 870
879-0450-10-144002272A0 450 PN16 570-1900 2.5-21 548 585 640 31 930 1361 1200 1217 870 Incl. position indicator
879-0450-10-14400237299 450 PN16 900-2650 2.5-21 548 585 640 31 930 1200 1200 1217 870
879-0450-10-144002372A0 450 PN16 900-2650 2.5-21 548 585 640 31 930 1361 1200 1217 870 Incl. position indicator
879-0500-10-04400207299 500 PN10 330-950 2.5-21 582 620 670 28 1020 1275 1250 1267 1115
879-0500-10-044002072A0 500 PN10 330-950 2.5-21 582 620 670 28 1020 1435 1250 1267 1115 Incl. position indicator
879-0500-10-04400217299 500 PN10 450-1600 2.5-21 582 620 670 28 1020 1275 1250 1267 1115
879-0500-10-044002172A0 500 PN10 450-1600 2.5-21 582 620 670 28 1020 1435 1250 1267 1115 Incl. position indicator
879-0500-10-04400227299 500 PN10 700-2400 2.5-21 582 620 670 28 1020 1275 1250 1267 1115
879-0500-10-044002272A0 500 PN10 700-2400 2.5-21 582 620 670 28 1020 1435 1250 1267 1115 Incl. position indicator
879-0500-10-04400237299 500 PN10 1050-3000 2.5-21 582 620 670 28 1020 1275 1250 1267 1115
879-0500-10-044002372A0 500 PN10 1050-3000 2.5-21 582 620 670 28 1020 1435 1250 1267 1115 Incl. position indicator
879-0500-10-14400207299 500 PN16 330-950 2.5-21 609 650 715 34 1020 1275 1250 1267 1115
879-0500-10-144002072A0 500 PN16 330-950 2.5-21 609 650 715 34 1020 1435 1250 1267 1115 Incl. position indicator
879-0500-10-14400217299 500 PN16 450-1600 2.5-21 609 650 715 34 1020 1275 1250 1267 1115
879-0500-10-144002172A0 500 PN16 450-1600 2.5-21 609 650 715 34 1020 1435 1250 1267 1115 Incl. position indicator
879-0500-10-14400227299 500 PN16 700-2400 2.5-21 609 650 715 34 1020 1275 1250 1267 1115
879-0500-10-144002272A0 500 PN16 700-2400 2.5-21 609 650 715 34 1020 1435 1250 1267 1115 Incl. position indicator
879-0500-10-14400237299 500 PN16 1050-3000 2.5-21 609 650 715 34 1020 1275 1250 1267 1115
879-0500-10-144002372A0 500 PN16 1050-3000 2.5-21 609 650 715 34 1020 1435 1250 1267 1115 Incl. position indicator
879-0600-10-04400207299 600 PN10 500-1400 2.5-21 682 725 780 31 1190 1420 1450 1467 1674
879-0600-10-044002072A0 600 PN10 500-1400 2.5-21 682 725 780 31 1190 1584 1450 1467 1674 Incl. position indicator
879-0600-10-04400217299 600 PN10 700-2200 2.5-21 682 725 780 31 1190 1420 1450 1467 1674
879-0600-10-044002172A0 600 PN10 700-2200 2.5-21 682 725 780 31 1190 1584 1450 1467 1674 Incl. position indicator
879-0600-10-04400227299 600 PN10 950-3300 2.5-21 682 725 780 31 1190 1420 1450 1467 1674
879-0600-10-044002272A0 600 PN10 950-3300 2.5-21 682 725 780 31 1190 1584 1450 1467 1674 Incl. position indicator
879-0600-10-04400237299 600 PN10 1600-4450 2.5-21 682 725 780 31 1190 1420 1450 1467 1674
879-0600-10-044002372A0 600 PN10 1600-4450 2.5-21 682 725 780 31 1190 1584 1450 1467 1674 Incl. position indicator
879-0600-10-14400207299 600 PN16 500-1400 2.5-21 720 770 840 37 1190 1420 1450 1467 1674
879-0600-10-144002072A0 600 PN16 500-1400 2.5-21 720 770 840 37 1190 1584 1450 1467 1674 Incl. position indicator
879-0600-10-14400217299 600 PN16 700-2200 2.5-21 720 770 840 37 1190 1420 1450 1467 1674
879-0600-10-144002172A0 600 PN16 700-2200 2.5-21 720 770 840 37 1190 1584 1450 1467 1674 Incl. position indicator
879-0600-10-14400227299 600 PN16 950-3300 2.5-21 720 770 840 37 1190 1420 1450 1467 1674
879-0600-10-144002272A0 600 PN16 950-3300 2.5-21 720 770 840 37 1190 1584 1450 1467 1674 Incl. position indicator
879-0600-10-14400237299 600 PN16 1600-4450 2.5-21 720 770 840 37 1190 1420 1450 1467 1674
879-0600-10-144002372A0 600 PN16 1600-4450 2.5-21 720 770 840 37 1190 1584 1450 1467 1674 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. Calibrated Orifice Stainless steel AISI 304
21. Ball valve Brass, Ni-plated
22. Needle valve Stainless steel
23. Y-strainer / Orifice Brass + SS 316
24. Pilot valve Stainless steel
25. Pressure gauge Stainless steel

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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