Check valves

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FEATURES:
Check valves are special devices used to prevent a back flow of product in a pipeline. It is normally used for example ot prevent the outlet of LPG from a tank through the feeding line or the return of product through a pump. The direction of flow is clearly indicated on the valve and must be carefully checked during installation.
The body of this valve is fully machined, (it is not welded) thus resulting in a more robust structure with a lower risk of presence of cracks.

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REFERENCE STANDARDS:

  • PED 97/23/CE;
  • ATEX 94/9/CE;
  • 2006/42/CE;
  • 2004/108/CE;
  • EN 14341:2006;
  • EN 12516-2:2004.

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MAIN COMPONENTS:

  • N.1 Valbe body in carbon steel, A105;
  • N.1 Shutter in stainless steel AISI 304;
  • N.1 Spring in stainless steel AISI 304.
  • N° 1 gasket, buna N.

On request:

  • -ANSI 300 flanges;
  • Viton gaskets.

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TECHNICAL CHARACTERISTICS:

  • Max operating pressure(PS): 40bar;
  • Test pressure (PT): 57,5bar;
  • Max operating temperature (TS min/max): -10°/+50°C;
  • Liquid: LPG (mix Propano-Butano) e fluidi del gruppo 1 e 2;
  • PED cathegory: II^ category (Tab.6 e 7 all.II – pipes, art. 3, point 1.3, letter a), ).

 

[DIV FINISHING]FINISHING SURFACE:
Galvanised, thickness of the protection leyer from12 to 16μm.


DIMENSIONS AND MODELS:
 

DN Code A (mm) B (mm) Max flow Liquid (m3/h)
20 214/001/02P 140 105 15
25 214/001/03P 140 115 15
32 214/001/04P 140 140 28
40 214/001/05P 140 150 28
50 214/001/06P 140 165 70
65 214/001/07P 140 185 90
80 214/001/08P 140 200 139
100 214/001/09P 185 235 214


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