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AVK CONTROL VALVE, PRESSURE REDUCING, PN10/16

Reduced bore, AISI304/DI trim, 300µm blue EP

Peter Tan

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Peter Tan

SALES MANAGER East Coast Region

Pressure reducing control valve (PRV), reduced bore, for water and neutral liquids to max. 70° C

AVK series 859 diaphragm actuated pressure reducing control valves (PRV) automatically reduces a higher inlet pressure to a lower constant outlet pressure, regardless of flow demand or changes in inlet pressure.

A replaceable spring inside the pilot makes it possible to operate in different pressure ranges and still keep the high precision. Setting and adjustment on a control knob on the pilot.

Variant 859/200X-001
Connection: Flanged
Material: Ductile iron
DN: DN65 - DN600
PN: PN 10/16

Features

Main control valve

  • Lifted seat to avoid damage due to cavitation
  • Geometry of regulating plug provides high ratio of travel Kv, resulting in optimal control performance
  • Non-symmetric axial position of rubber diaphragm results in less stretch/stress near closed position
  • All non-coated internals made of stainless steel AISI 304 or bronze CC499K
  • Body and bonnet of ductile iron with fusion bonded epoxy, 300micron, GSK approved, RAL 5017, according to DIN 3476 and WRAS-DVGW/W270/UBA.
  • All rubber components with multiple approvals (EN 681-1, KTW, W270, ACS, WRAS, DVGW)

Pilot system

  • Modular and compact design for easy application change
  • Integral Valve, mainly used for isolating the control chamber, fixing position of main valve, in case of servicing the pilot circuit. The integral Valve, can also be used, adjusting main valve reaction time
  • Main components made of stainless steel AISI 304:
    • Distribution block:
      -  Connecting main control valve to pilot system
      -  Control orifice
    • Filter:
      -  High capacity, easy to flush with possibility of back flushing
      -  Mesh 100, high performance wire screen type
    • Hydraulic control block:
      -  Includes balance pilot, providing a more stable pressure setpoint
      -  Can be set up for different applications using single-function or multi-function modules

Downloads

Datasheet

Reference nos. and dimensions:

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AVK ref. no. Gross Price
MYR		 DN
mm		 Flange
drilling		 Pilot range
bar		 L
mm		 W1
mm		 W2
mm		 H3
mm		 Theoretical
weight/kg
859-0065-20-1640000 9,814 65 PN10/16 0.6 - 6 290 104 131 335 17
859-0080-20-1640000 10,227 80 PN10/16 0.6 - 6 310 117 131 354 21
859-0100-20-1640000 11,418 100 PN10/16 0.6 - 6 350 127 131 373 26
859-0125-20-1640000 12,454 125 PN10/16 0.6 - 6 400 127 131 392 31
859-0150-20-1640000 13,997 150 PN10/16 0.6 - 6 480 157 139 430 73
859-0200-20-0640000 price on request 200 PN10 0.6 - 6 600 202 202 521 87
859-0200-20-1640000 20,588 200 PN16 0.6 - 6 600 202 202 521 87
859-0250-20-0640000 price on request 250 PN10 0.6 - 6 730 252 252 638 144
859-0250-20-1640000 28,290 250 PN16 0.6 - 6 730 252 252 638 144
859-0300-20-0640000 price on request 300 PN10 0.6 - 6 850 275 275 715 203
859-0300-20-1640000 35,823 300 PN16 0.6 - 6 850 275 275 715 203
859-0350-20-0640000 price on request 350 PN10 0.6 - 6 980 302 302 790 320
859-0350-20-1640000 51,934 350 PN16 0.6 - 6 980 302 302 790 320
859-0400-20-0640000 price on request 400 PN10 0.6 - 6 1100 355 355 914 498
859-0400-20-1640000 68,094 400 PN16 0.6 - 6 1100 355 355 914 498
859-0450-20-0640000 price on request 450 PN10 0.6 - 6 1200 398 398 980 636
859-0450-20-1640000 77,857 450 PN16 0.6 - 6 1200 398 398 980 636
859-0500-20-0640000 price on request 500 PN10 0.6 - 6 1250 465 465 1163 938
859-0500-20-1640000 101,155 500 PN16 0.6 - 6 1250 465 465 1163 938
859-0600-20-0640000 price on request 600 PN10 0.6 - 6 1450 509 509 1272 1282
859-0600-20-1640000 125,804 600 PN16 0.6 - 6 1450 509 509 1272 1282
Enquiry
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Components

1. O-ring EPDM rubber
2. Plug sealing EPDM rubber
3. Washer Stainless steel A2
4. Bolt Stainless steel A2
5. Diaphragm EPDM rubber
6. Nut Stainless steel A2
7. Stem Stainless steel AISI 431
8. Stem guide Stainless steel AISI 304
9. Bonnet Ductile iron GJS-500-7 (GGG-50)
10. Spring Stainless steel AISI 304
11. Washer Bronze CC499K
12. Diaphragm support Ductile iron GJS-500-7 (GGG-50)
13. Disc retainer Ductile iron GJS-500-7 (GGG-50)
14. Regulating disc Stainless steel AISI 304
15. Seat Stainless steel AISI 304
16. Body Ductile iron GJS-500-7 (GGG-50)
17. Pilot valve Stainless steel AISI 304
18. Mechanical air-vent Stainless steel AISI 304
19. Filter Stainless steel AISI 304
20. Gasket EPDM rubber
21. Body Stainless steel AISI 304
22. Plug Stainless steel AISI 304
23. Insert Stainless steel AISI 304
24. Needle Stainless steel AISI 304
25. Bushing Stainless steel AISI 304
26. Split pin Stainless steel A2

Test/Approvals

  • Hydraulic test according to EN 1074-1 and 5/ EN12266
  • WRAS approved materials

Standards

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