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AVK GATE VALVE, PN10/16

WRAS approved rubber, 1.4401 stem, A4 bolts, GSK coated

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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.

AVK gate valves are designed with built-in safety in every detail. The wedge is fully vulcanized with AVK’s own drinking water approved EPDM rubber compound. It features an outstanding durability due to the ability of the rubber to regain its original shape, the double bonding vulcanization process and the sturdy wedge design. The triple safety stem sealing system, the high strength stem and the thorough corrosion protection safeguard the unmatched reliability.

Variant 21/50-007
Connection: Flanged
Material: Ductile iron
DN: DN50 - DN400
PN: PN 10/16
Closing direction: Clockwise to Close

Features

Fixed, integral wedge nut prevents vibration and ensures durability.

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.

Guides in the wedge and on the valve body ensure a uniform closure, safe operation ensured as the guides prevent overloading of the stem.

The wedge has a large through bore and as there are no hollows in the core, stagnant water or impurities can't 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.

Triple safety stem sealing with an NBR wiper ring, a polyamide bearing with two EPDM O-rings, and another EPDM O-ring on stem, which prevents leakage when exchanging stem seals under pressure.

Round bonnet gasket fixed in a recess groove in bonnet preventing it from being blown out by pressure surges.

Countersunk and sealed bonnet bolts encircled by the bonnet gasket, thus there is no risk of corrosion. 

Full bore.

Blue fusion bonded epoxy GSK approved.

Downloads

Datasheet
Tender Text
Certificate(s)

Reference nos. and dimensions:

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AVK ref. no. DN
mm		 Flange
drilling		 L
mm		 H
mm		 H3
mm		 F
mm		 F1
mm		 F2
mm		 W
mm		 Dh
mm		 Ds
mm		 Number
of bolts		 Theoretical
weight/kg
21-050-50-0141264 50 PN10/16 178 281 364 19 22 38 165 125 21 4 14
21-065-50-0141264 65 PN10/16 190 288 382 19 22 38 185 145 21 4 16
21-080-50-0141264 80 PN10/16 203 296 397 19 22 38 200 160 20 8 17
21-100-50-0141264 100 PN10/16 229 328 440 19 22 38 220 180 20 8 22
21-150-50-0141264 150 PN10/16 267 432 576 24 28 42 285 240 24 8 40
21-200-50-0141264 200 PN16 292 561 733 27 31 47 340 295 25 12 55
21-250-50-0141264 250 PN16 330 604 806 27 31 47 400 355 30 12 84
21-300-50-0141264 300 PN16 356 682 911 27 31 47 455 410 30 12 122
21-350-50-0141264 350 PN16 381 821 1088 32 37 55 554 470 30 16 214
21-400-50-0141264 400 PN16 406 848 1138 32 37 55 580 525 33 16 221
Enquiry
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Components

1. Stem Stainless steel 1.4401
2. Wiper ring NBR rubber
3. O-ring EPDM rubber
4. Bushing Polyamide
5. Gland flange bolt Stainless steel A4
6. Gland flange Ductile iron GJS-500-7 (GGG-50)
7. Thrust collar Brass DZR
8. O-ring EPDM rubber
9. O-ring EPDM rubber
10. Bonnet Ductile iron GJS-500-7 (GGG-50)
11. Bonnet bolt Stainless steel A4
12. Bonnet gasket EPDM rubber
13. Wedge nut Brass DZR
14. Wedge core Ductile Iron
15. Wedge rubber EPDM rubber
16. Body Ductile iron GJS-500-7 (GGG-50)

Test/Approvals

  • Seat: 1.1 x PN (in bar), Body: 1.5 x PN (in bar). Operation torque test
  • Approved according to WRAS Certificate 2302702, max 50°C

Standards

  • EN 1074-2 Annex B (BS5163/Type B)
  • Face-to-face dimension according to EN 558, Series 3
  • Flange drilling to EN1092, PN10/16
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