1. Home /
  2. Product finder

SWING CHECK VALVE, METAL SEATED

Right side guarded lever and weight, 1.4404 shaft, PN10/16

Contact AVK in Hong Kong

Contact

AVK Valves Company Hong Kong Ltd.

Unit 01-02, 21/F, Pilkem Commercial Centre, 8 Pilkem Street, Jordan, Kowloon Hong Kong

Metal seated swing check valve with guard covering lever and weight for drinking water and neutral liquids to max. 70°C

AVK series 41 swing check valves come with both metal and resilient seats. Installed in pumping applications to prevent back flow they can be used for drinking water as well as waste water. The disc is connected to the shaft via a flexible bush that allows disc and valve seat to adjust exactly. All interior parts are stainless steel or coated with drinking water approved epoxy or EPDM. The series 41 valves are available with either closed bushings or protruding shaft end where a lever with a weight or a spring can be fitted to mitigate pressure surges.
Variant 41/36-010
Connection: Flanged
Material: Ductile iron
DN: DN50 - DN300
PN: PN 16

Features

  • Clear way and full bore for low head loss and easy pig-cleaning
  • Metal seat in gunmetal bronze for high durability
  • Shaft fitted in the bonnet allowing for easy maintenance without removing valve from pipeline
  • Shaft, bolts and washers in 1.4404 (AISI 316L) acid resistant stainless steel
  • Position indicating lever with an adjustable weight that aids the disc in closing quickly to reduce water hammer, guard on lever mechanism
  • Hinge of stainless steel for sizes ≤ DN 200; ductile iron coated with drinking water approved epoxy for larger
  • Ductile iron disc covered with drinking water approved EPDM
  • Bonnet gasket lying in a groove between bonnet and body prevents blow-out
  • All seals and coatings with contact to the fluid are approved for drinking water - coating is blue, 300μm fusion bonded epoxy
  • Disc mounted in a flexible rubber bushing allowing it to tilt slightly in all directions and adjust exactly to the valve seat
  • Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.

Downloads

Datasheet
Tender Text
Installation, operation and maintenance manuals

Reference nos. and dimensions:

Scroll for more info
Reference no. DN
mm		 Flange
drilling		 L
mm		 H
mm		 H3
mm		 W
mm		 W1
mm		 Theoretical
weight/kg
41-050-36-0180166 50 PN10/16 203 125 215 260 165 15
41-080-36-0180166 80 PN10/16 241 140 205 265 165 21
41-100-36-0180166 100 PN10/16 292 155 250 276 176 25
41-150-36-0180166 150 PN10/16 356 220 315 346 211 46
41-200-36-0180166 200 PN16 495 250 367 406 241 71
41-250-36-0180166 250 PN16 622 347 665 725 422 155
41-300-36-0180166 300 PN16 699 395 688 732 732 205
Enquiry
Scroll for more info

Components

1. Bolt/nut Stainless steel A4
2. Body Ductile iron GJS-500-7 (GGG-50)
3. Washer Stainless steel A4
4. Disc Ductile iron, EPDM encapsulated
5. Hinge Stainless steel / ductile iron
6. Gasket EPDM rubber
7. Face ring Bronze CC491K (RG5)
8. O-ring NBR rubber
9. Seat ring Bronze CC491K (RG5)
10. Washer Copper
11. Air plug Stainless steel 1.4401 (AISI 316)
12. Bonnet Ductile iron GJS-500-7 (GGG-50)
13. Connector Stainless steel 1.4408 (CF8M), cast
14. Bushing, closed Brass CW614N
15. Shaft Stainless steel 1.4401 (AISI 316)
16. O-ring NBR rubber
17. O-ring NBR rubber
18. Spacer Stainless steel 1.4401 (AISI 316)
19. Key Stainless steel 1.4401 (AISI 316)
20. O-ring NBR rubber
21. Bushing, open Brass CW614N
22. Lever Ductile iron GJS-500-7 (GGG-50)
23. Weight Ductile iron GJS-500-7 (GGG-50)
24. Screw Stainless steel A4
25. Guard Ductile iron GJS-500-7 (GGG-50)

Test/Approvals

  • Hydraulic test according to EN 1074-3. |
  • Seat: 1.1×PN (in bar), Body: 1.5×PN (in bar).

Standards

  • EN 1074-3
  • Face-to-face dimension according to EN 558, basic series 10
  • Flange drilling to EN1092, PN10/16
0 Files In the package