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AVK GATE VALVE, FLANGED, PN16

Ductile iron, EN 1092 flange, A2 bolts, EPDM wedge rubber, GSK coating

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AVK Valves Company Hong Kong Ltd.

Unit 803, 8/F, Pilkem Commercial Centre, 8 Pilkem Street, Jordan, Kowloon Hong Kong

Resilient seat gate valve for water and waste water. Temperature range: -10° C to +70° C. 10% solid matter.

The AVK series 21 are flanged, resilient seat gate valves with an under-pressure replaceable stem seal designed to the heavy duty BS5163 Type B standard for use in systems with water, sewage, or other neutral liquids.

Variant 21/36-004
Connection: Flanged
Material: Ductile iron
DN: DN50 - DN400
PN: PN 16
Closing direction: Clockwise to Close

Features

  • Fixed, integral wedge nut prevents vibration and ensures durability
  • Stem seal replaceable under pressure
  • The ductile iron core is fully vulcanized with drinking water approved EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber
  • The wedge has a large through bore and as there are no hollows in the core, stagnant water or impurities cannot collect and cause contamination
  • Stainless steel stem with rolled threads for high strength
  • Full circle brass thrust collar provides fixation of the stem and low free running torques
  • Double stem seal: a replaceable polyamide bearing with two O-rings and an O-ring on the stem
  • Round bonnet gasket fixed in a recess groove in bonnet preventing it from being blown out by pressure surges
  • Bonnet bolts in stainless steel, encircled by the bonnet gasket to protect against contact with the fluid and against corrosion
  • Fusion bonded epoxy coating acc. to GSK, blue RAL 5017
  • Bonnet- and gland bolts counterbored and sealed with hot-melt for protection against corrosion; bonnet bolts furthermore encircled by the bonnet gasket as protection against the water

Downloads

Datasheet

Reference nos. and dimensions:

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AVK ref. no. DN
mm		 Flange
drilling		 L
mm		 W
mm		 H
mm		 H3
mm		 F1
mm		 Turns
to open		 Theoretical
weight/kg
21-050-36-0142064 50 PN10/16 178 173 268 351 19 5 13
21-065-36-0142064 65 PN10/16 190 185 269 362 19 6 14
21-080-36-0142064 80 PN10/16 203 200 277 377 19 8 16
21-100-36-0142064 100 PN10/16 229 220 298 408 19 9 18
21-150-36-0142064 150 PN10/16 267 285 388 531 19 14 33
21-200-36-0142064 200 PN16 292 340 475 644 19 18 51
21-250-36-0142064 250 PN16 330 422 582 782 27 21 83
21-300-36-0142064 300 PN16 356 455 665 893 27 25 115
21-350-36-0142064 350 PN16 381 564 821 1087 32 29 208
21-400-36-0142064 400 PN16 406 580 848 1138 32 33 214
Enquiry
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Components

1. Body Ductile iron GJS-500-7 (GGG-50)
2. Wedge rubber EPDM rubber
3. Wedge core Ductile iron GJS-500-7 (GGG-50)
4. Wedge shoe Polyamide
5. Wedge nut Brass DZR CW626N
6. Stem Stainless steel 1.4021 (420)
7. Bonnet gasket EPDM rubber
8. Bonnet Ductile iron GJS-500-7 (GGG-50)
9. O-ring EPDM rubber
10. Bolt Stainless steel A2
11. Cover Hot melt glue
12. Wiper ring NBR rubber
13. Gland flange Ductile iron GJS-500-7 (GGG-50)
14. Radial bearing Polyamide
15. O-ring EPDM rubber
16. Thrust collar Brass CW724R Si-alloy
17. O-ring EPDM rubber
18. Bolt Stainless steel A2

Test/Approvals

  • Seat: 1.1 x PN. Body: 1.5 x PN. 
  • WRAS approved materials

Standards

  • BS5163 Type B, EN 1074 part 1 & 2
  • Face-to-face dimension according to EN 558, Series 3
  • Flange drilling to EN1092, PN10/16
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