AVK CONTROL VALVE, PRESSURE REDUCING, PN10/16

Full bore, AISI 316 pipes and fittings

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Pressure reducing control valve, full 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 859/100X-001
Connection: Flanged
Material: Ductile iron
DN: DN150 - DN400
PN: PN 10/16

Features

Main control valve

  • Lifted seat to avoid damage due to cavitation
  • High Kv value at fully open position
  • 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 316
  • 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)

Pilot system

  • Modular and compact design for easy application change
  • Main components made of stainless steel AISI 316:
    • Distribution block:
      -  Connecting main control valve to pilot system
      -  Easy adjustment of regulating speed
      -  Control orifice
    • Filter:
      -  High capacity, easy to flush with possibility of back flushing
      -  Mesh 100, high performance wire screen type
    • Hydraulic control block:
      -  Includes balanced pilot valve providing more stable pressure set
      -  Can be set up for different applications using single-function or multi-function modules

Reference nos. and dimensions:

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AVK ref. no. DN
mm
Flange
drilling
Press. Range
bar
L
mm
W1
mm
W2
mm
H3
mm
Theoretical
weight/kg
859-0150-10-1140001 150 PN10/16 5 - 11 480 202 202 494 73
859-0400-10-1140000 400 PN16 0.6 - 6 1100 300 398 958 575
2D/3D drawings
Enquiry
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Components

1. O-ring EPDM rubber
2. O-ring EPDM rubber
3. Hex nut Stainless steel A4, anti friction
4. Plug sealing EPDM rubber
5. Washer Stainless steel A4
6. Bolt Stainless steel A4
7. Diaphragm EPDM rubber
8. O-ring EPDM rubber
9. Hex nut Stainless steel A4, anti friction
10. Flat seal EPDM rubber
11. Flat seal EPDM rubber
12. Stem Stainless steel AISI 316
13. Stem guide Stainless steel AISI 316
14. Bonnet Ductile iron GJS-500-7 (GGG-50)
15. Spring Stainless steel AISI 316
16. Diaphragm support Stainless steel AISI 316
17. Distance pipe Stainless steel AISI 316
18. Plug retainer Stainless steel AISI 316
19. Regulating plug Stainless steel AISI 316
20. Seat Stainless steel AISI 316
21. Body Ductile iron GJS-500-7 (GGG-50)
22. Flat seal EPDM rubber
23. O-ring NBR rubber
24. Gasket EPDM rubber
25. Bushing Stainless steel AISI 316
26. Needle valve Stainless steel AISI 316
27. Body Stainless steel AISI 316
28. O-ring EPDM rubber
29. Insert Stainless steel AISI 316
30. O-ring EPDM rubber
31. O-ring EPDM rubber
32. O-ring EPDM rubber
33. Pilot valve Stainless steel AISI 316
34. Bolt Stainless steel A4
35. Mechanical air-vent Stainless steel AISI 316
36. Filter Stainless steel AISI 316

Test/Approvals

  • Seat: 1.1 x PN. Body: 1.5 x PN. 
  • 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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