AVK RECOIL CHECK VALVE, SINGLE DOOR, DN 100 - 300, PN 25

Aluminium Bronze Seat Ring, AISI431 Hing Pin

Anthony Whittam AVK UK Network Water Specialist

Anthony Whittam

Head of Smart Water and Pressure Management

Recoil check valve for drinking water and neutral liquids to max. 70° C

AVK ball check valves are self-cleaning and with full bore. The ball rotates during operation eliminating the risk of impurities getting stuck on the ball. The full and smooth bore ensures full flow with low pressure loss and eliminates the risk of deposits at the bottom. AVK ball check valves are available with flanges and internal threads. They are delivered with NBR lined ball as standard and optionally with ball of polyurethane available in different weights.

Variant 641/13-003
Connection: Flanged
Material: Ductile Iron
DN: DN100 - DN500
PN: PN 25

Features

Full bore and low head loss.

Shaft of stainless steel fitted in the bonnet allowing easy access to maintenance.

Hinge of ductile iron tightened around the shaft with bolts to eliminate play and thus ensure durability

Bonnet gasket of EPDM rubber in a groove between bonnet and body.

Disc of epoxy coated ductile iron with face ring of aluminium bronze.

The disc is mounted in a nylon bushing, which allows it to move slightly both horizontally and vertically to close completely tight also in case of minor impurities in the seat.

Body and bonnet of ductile iron with epoxy coating to DIN 30677-2.

A guard covering the lever and weight is available as an optional extra.

Seat ring of aluminium bronze.

Downloads

Datasheet
Related Datasheets
Price list

Reference nos. and dimensions:

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Ref. no. DN
mm
H2
mm
H3
mm
L
mm
L1
mm
W
mm
W7
mm
Theoretical
weight/kg
641-0100-13-700050 100 166 376 496 190 305 110 79
641-0200-13-700050 200 280 625 762 293 527 140 270
641-0250-13-700050 250 330 720 965 409 610 160 417
641-0300-13-700050 300 380 810 1067 455 673 200 591
641-0350-13-700050 350 457 935 1219 469 816 305 882
641-0500-13-700050 500 660 1313 1473 546 1143 457 1986
Enquiry
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Components

1. Body outlet Ductile Iron GJS-500-7
2. O-cord EPDM
3. Body inlet Ductile Iron GJS-500-7
4. Seat ring Bronze CC331G (AB1)
5. O-cord EPDM
6. Stopper Ductile Iron GJS-500-7
7. Face ring Bronze CC331G (AB1)
8. Disc Ductile Iron GJS-500-7
9. Cover Ductile Iron GJS-500-7
10. Gasket PA
11. Air vent Stainless steel
12. O-cord EPDM
13. Fasteners Zinc plated steel
14. Hinge pin Stainless steel 1.4057
15. Bush Alu-bronze CW307G

Test/Approvals

  • Seat: 1.1 x PN. Body: 1.5 x PN. 

Standards

  • Designed according to manufacturer standard
  • Face to face Length in Accordance with Manufacturers Standard
  • Standard flange drilling to EN1092 (ISO 7005-2), PN 25
0 Files In the package
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