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AVK SILENT CHECK VALVE

Metal Seated, SS Trim, DN100-400, PN16

AVK Wingfield Plant

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AVK Australia Civil

559A Grand Junction Road Wingfield SA 5013 Sales and Technical enquiry

Series 903 metal seated silent check valves are designed to prevent back flow in high temperature range pumping applications. The valve element movement is controlled via a central guide where a centrally mounted spring together with the short movement aids the quick closing that is essential in reducing shock associated with valve closure. The pumped media can be water, glycol or other clean, neutral liquids.

Variant 903/20-014
Connection: Flanged
Material: Ductile Iron
DN: DN100 - DN400
PN: PN16

Features

  • Flange Drilling options to AS 2129 Table D/E
  • The combination of light disc, short stroke distance and fast closing spring design effectively mitigates slamming
  • Streamlined contour for low head loss
  • The special metal seat design ensures quick and easy trim replacement
  • Disc in cast, stainless steel 1.4408/CF8 (316), trim in AISI 316
  • Blue RAL 5017 fusion bonded epoxy coating on both external and internal surfaces to AS/NZS 4158
  • On sizes DN200 and below the design allows for installation of a butterfly valve at the outlet without additional adapters; measure reference C

Downloads

Datasheet
Installation, Operation & Maintenance

Reference nos. and dimensions:

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AVK ref. no. DN
mm		 Flange
drilling		 L
mm		 W
mm		 C
mm		 Theoretical
weight/kg
903-100-20-53012 100 AS2129 D 184 235 46 17
903-100-20-63012 100 AS2129 E 184 235 46 17
903-125-20-63012 125 AS2129 D/E 216 270 51 23
903-150-20-53012 150 AS2129 D 248 300 61 34
903-150-20-63012 150 AS2129 E 248 300 61 34
903-200-20-53012 200 AS2129 D 317 360 84 56
903-200-20-63012 200 AS2129 E 317 360 84 56
903-250-20-53012 250 AS2129 D 394 425 122 83
903-250-20-63012 250 AS2129 E 394 425 122 83
903-300-20-53012 300 AS2129 D 362 492 16 107
903-300-20-63012 300 AS2129 E 362 492 16 107
903-350-20-63012 350 AS2129 D/E 400 555 36 149
903-400-20-63012 400 AS2129 D/E 448 620 50 194
Enquiry
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Components

1. O-ring EPDM rubber
2. Body Ductile iron GJS-500-7 (GGG-50)
3. Seat Stainless steel 1.4408
4. Disc Stainless steel 1.4408
5. Spring Stainless steel 316
6. Bush Stainless steel 316
7. Bolt Stainless steel A4
8. Retainer ball Stainless steel 316
9. Bolt Stainless steel A4

Standards

  • Designed according to EN 12334
  • Face to face according to MSS SP-125 short globe
  • Flange drilling to AS 2129 Table D/E
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