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AVK CENTRIC U-SECTION BUTTERFLY VALVE, PN10/16

Ductile iron disc, with loose EPDM liner, bare shaft

Contact

Pham Trung

Technical Manager

Centric butterfly valve with loose liner and bare shaft - U-section for wastewater treatment and HVAC to max. 90° C

AVK centric butterfly valves with loose liner are available in wafer, lug and U-section design with a wide standard range of actuators. The butterfly valves are designed with square driven anti-blowout shaft and slim disc of Rilsan coated ductile iron with smooth edges resulting in low torques.

Variant 820/20-029
Connection: U-shaped type valve
Material: Ductile iron body/GGG disc, Rilsan coated
DN: DN150 - DN700
PN: PN 10
Closing direction: Clockwise to Close

Features

  • Ductile iron with long neck for insulation 
  • Loose liner of EPDM with integrated gasket faces and “saw profile” for optimum grip in body 
  • Square driven anti-blowout shaft in one-piece design up to DN 400, and from DN 450 with key and keyway in two-piece stub design with two self-lubricating bearings 
  • Slim disc of Rilsan coated (200 μ) ductile iron with smooth edges reducing the friction between liner and disc
  • Low operating torques allowing use of cost-effective actuators 
  • According to PED 2014/68/EC appendix 1
  • Other flange drillings on request

Downloads

Datasheet
Animation
AVK_Centric_butterfly_valve.mp4
Certificate(s)

Reference nos. and dimensions:

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AVK ref. no. DN
mm		 Product
PN Class		 Flange
drilling		 L
mm		 L2
mm		 H2
mm		 W2
mm		 W3
mm		 W
mm		 W1
mm		 Theoretical
weight/kg		 Notes
820-0150-20-011E0160002 150 PN16 PN16 56 285 143 210 226 90 70 15
820-0200-20-011E0160002 200 PN16 PN16 60 340 170 240 259 90 70 20
820-0250-20-011E0160002 250 PN16 PN16 68 406 200 279 303 155 125 31
820-0300-20-011E0160002 300 PN16 PN16 78 482 239 315 339 155 125 44
820-0350-20-01010030002 350 PN10 PN10 80 533 257 330 370 155 125 59
820-0400-20-01010030002 400 PN10 PN10 102 597 292 365 375 155 125 82
820-0450-20-01040031002 450 PN10 PN10 113 640 355 397 462 175 140 118 250 µm PUR coating on body
820-0500-20-01040031002 500 PN10 PN10 126 715 393 437 502 175 140 175 250 µm PUR coating on body
820-0600-20-01040031002 600 PN10 PN10 153 840 464 522 602 220 165 260 250 µm PUR coating on body
820-0700-20-01040031002 700 PN10 PN10 168 927 503 565 645 300 254 345 250 µm PUR coating on body
Enquiry
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Components

1. Bolt Stainless steel A2
2. Washer Stainless steel A2
3. O-ring NBR rubber
4. Shaft Stainless steel AISI 420
5. Body Ductile iron GJS-400-15
6. Liner EPDM rubber
7. Disc Ductile iron, GJS-400-15 Rilsan coated

Test/Approvals

  • Hydraulic test according to EN 12266-1
  • Approved for wastewater / pressure test EN12266-1
  • Approved according to PED.BD.000001, TÜV-Mark, EU pressure directive 2014/68

Standards

  • EN 593
  • Face-to-face dimension according EN 558 - Series 20
  • Flange drilling to EN1092, PN10
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