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AVK CONCENTRIC BUTTERFLY VALVE, WAFER TYPE

Cast SS body, loose EPDM liner, EN558/20, cast SS-1.4408 disc, SS shaft, A2 bolts, gearbox/lever

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AVK Philippines Inc.

#70 West Avenue, Brgy. West Triangle 1104 Quezon City Metro Manila, PH

Loose liner butterfly valve for neutral liquids like drinking water, river water and treated wastewater free from solids and fibrous impurities to max 70°C

The AVK Series 76 is a wide range of concentric, loose liner butterfly valves available in both flanged, wafer and lug design and with AVK's own high quality rubber liner that significantly increases the service life. The one-piece replaceable liner also serves as a profiled flange gasket and comes in either drinking water approved EPDM, high temperature EPDM or hydrocarbon resistant NBR. Disc material is stainless steel or epoxy coated ductile iron. The shaft in stainless steel, installed in low friction bronze/PTFE bearings in an anti-blow out design plus the unique disc sealing profile results in low operating torque and long life.
Variant 76/70-012
Connection: Wafer type valve
Material: Ductile iron
DN: DN50 - DN600
PN: PN 16

Features

  • Body in cast stainless steel, 1.4308/CF8 (AISI 304) with a long neck that makes room for insulation
  • Loose, replaceable liner in drinking water approved EPDM with reinforced seating area and integrated, profiled flange gaskets
  • Shaft seal integrated in the liner
  • Anti-blow-out shaft design with an anti blow-out plate at the top and a plug at the bottom
  • Radial bearings in low friction bronze/PTFE composite on a steel back
  • Shaft in stainless steel 1.4021/AISI 420
  • Bolts and washers are stainless steel A2 and disc material is cast stainless steel, 1.4408/CF8M (AISI 316)
  • Slim disc design with internal hexagon for drive shaft connection
  • DN≤200: Hand lever with a notch plate for locking in 8 different positions
  • DN≥200: Self-locking, handwheel operated worm gearbox

Downloads

Datasheet

Reference nos. and dimensions:

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AVK ref. no. DN
mm		 PN
Class		 L
mm		 L1
mm		 H1
mm		 H3
mm		 W
mm		 W1
mm		 G
mm		 F
mm		 F2
mm		 D1
mm		 Actuator
flange		 Actuator
type		 Theoretical
weight/kg
76-0050-70-897402600023 50 PN16 83 43 125 259 237 126 - 12 12 9 F05 ALU LEVER 2.4
76-0065-70-897402600023 65 PN16 83 46 150 304 243 139 - 12 12 9 F05 ALU LEVER 2.9
76-0080-70-897402600023 80 PN16 83 46 157 320 247 146 - 12 12 9 F05 ALU LEVER 3.5
76-0100-70-897402600023 100 PN16 111 52 182 376 298 148 - 14 17 11 F07 ALU LEVER 4.7
76-0125-70-897402600023 125 PN16 111 56 201 409 312 177 - 14 19 14 F07 ALU LEVER 6.2
76-0150-70-897402600023 150 PN16 111 56 214 433 325 202 - 14 19 14 F07 ALU LEVER 7.2
76-0200-70-897402600013 200 PN16 200 60 245 537 310 256 200 14 23 17 F07 ROTORK GBX 13
76-0250-70-897402600013 250 PN16 205 68 283 609 353 310 200 14 28 22 F10 ROTORK GBX 19
76-0300-70-897402600013 300 PN16 205 78 308 672 380 365 200 14 28 22 F10 ROTORK GBX 27
76-0350-70-897402600013 350 PN16 300 78 354 801 515 422 300 16 29 27 F12 ROTORK GBX 43
76-0400-70-897402600013 400 PN16 400 102 383 919 583 476 400 20 29 27 F14 ROTORK GBX 75
76-0350-70-817402690213 350 PN16 300 78 354 814 517 427 300 16 29 27 F12 ROTORK GBX 50
76-0450-70-897402600013 450 PN16 400 114 390 957 609 528 400 20 29 27 F14 ROTORK GBX 85
76-0400-70-817402690213 400 PN16 400 102 383 930 583 475 400 20 29 27 F14 ROTORK GBX 79
76-0500-70-897402600013 500 PN16 500 127 430 1094 705 577 500 20 38 36 F14 ROTORK GBX 113
76-0600-70-897402600013 600 PN16 500 154 482 1202 798 674 500 22 38 36 F16 ROTORK GBX 157
2D/3D drawings
Enquiry
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Components

1. Plate POM
2. O-ring EPDM rubber
3. Ring POM
4. Body Stainless steel 1.4308, cast
5. Bearing Steel, PTFE coated
6. Shaft, drive Stainless steel 1.4021
7. Liner EPDM rubber
8. Disc Stainless steel 1.4408, cast
9. Shaft, stub Stainless steel 1.4021
10. O-ring NBR rubber
11. Plug POM
12. Bolt Stainless steel A2
13. Lever PA / Aluminium
14. Notch plate Steel S235JR
15. Washer Stainless steel A2
16. Nut Stainless steel A2
17. O-ring EPDM rubber
18. Gearbox Cast iron
19. Washer POM
20. O-ring EPDM rubber
21. Plug Stainless steel 1.4301

Test/Approvals

  • Tested according to EN 12266-1
  • WRAS approved materials

Standards

  • EN 1074 part 1 & 2, EN 593
  • Face-to-face dimension according to EN 558, Series 20
  • End connection to EN1092, PN10/16, ASME B16.1 CL150, JIS 10K
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