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VIS - PVC-u Angle seat check valves

VIS - PVC-u Angle seat check valves

VIS - PVC-u Angle seat check valves

Product catalog summary
Overview: The document is a technical catalog for PVC-U angle seat check valves, specifically the VI series, produced by Polypipe Italia. These valves are designed to allow fluid passage in one direction only, using a weighted PVC piston.
Specifications:
  • Connection System: Suitable for solvent weld, threaded, and flanged joints.
  • Material: PVC-U for the valve body, EPDM/FKM for seals.
  • Nominal Pressure: PN 16 at 20°C.
  • Temperature Range: 0°C to 60°C.
  • Dimensions: DN 15 to DN 50 (d.20 to 63 mm).
Technical Features:
  • No metal parts in contact with the fluid, ensuring compatibility with water and food substances.
  • Minimal pressure drop and back pressure required for sealing.
  • Maintenance possible with the valve body installed.
Performance Data:
  • Operating Pressure: Maximum pressure varies with temperature, as shown in the accompanying graph.
  • Pressure Loss: Detailed in a table with differential pressure values for various DN sizes.
  • Flow Rate Coefficient (Kv100): Indicates the flow rate of water at 20°C that results in a 1 bar pressure drop.
  • Minimum Pressure: Required to lift the piston and for sealing when the piston is in a closed position.
Components: The valve consists of several PVC-U components, including the body, piston, bonnet, and union nut, with seals made of EPDM/FKM.
Additional Information: The document includes a disclaimer about the accuracy and legal implications of the information provided, noting that specifications may change without notice.
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Catalog excerpts

VIS - PVC-u Angle seat check valves-1

PVC-U Angle seat check valves – VI series PVC-U Valvole di non ritorno a sede inclinata – serie VI Tecnical Catalog Catalogo Tecnic

 Open the catalog to page 1
VIS - PVC-u Angle seat check valves-2

The VIS is an angle seat check valve with weighted PVC piston that allows the passage of fluid in one direction only . La VIS è una valvola di ritegno a sede inclinata a pistone in PVC appesantito che ha la funzione di permettere il passaggio del fluido in una sola direzione. • Connection system for solvent weld, threaded and flanged joints / Sistema di giunzione per incollaggio, per lettatura e per flangiatura No metal parts in contact with the fluid / Nessuna parte metallica in contatto con il fluido Piston with counterweight able to work with high intensity fluid / Pistone con incluso contrappeso...

 Open the catalog to page 2
VIS - PVC-u Angle seat check valves-3

PVC-U Angle seat check valves – VI series PVC-U Valvole di non ritorno a sede inclinata – serie VI Pressure loss / Perdite di carico Flow rate coefficient Kv100 / Coefficiente di flusso Kv100 At ∆p = 1 bar. Kv100 flow coef?cient is the flow rate of water at 20°C that will generate 1 bar pressure drop. The Kv100 values in the table are calculated for the valve completely open. Per ∆p = 1 bar. Il coef ciente di flusso Kv100 è la portata dell’acqua a 20° che genera una caduta di pressione di 1 bar. I valori del coef ciente Kv100 riportati nella tabella sono riferiti alla valvola completamente aperta....

 Open the catalog to page 3
VIS - PVC-u Angle seat check valves-4

PVC-U Inclined-Seat shut-off valves – VI series PVC-U Valvole di regolazione a sede inclinata – serie VI Components / Componenti Body / Corpo Piston / Pistone Retaining ring / Anello aperto Bonnet / Coperchio Socket seal O-Ring / Stelo O-Ring / O-Ring Piston flat gasket / Guarnizione piana del pistoncino Polypipe Italia Loc. Pianmercato 5C-5D-5H, 16044 Cicagna (GE), Italy Tel: +39 0185 92399 E-mail: [email protected]

 Open the catalog to page 4
VIS - PVC-u Angle seat check valves-5

PVC-U Angle seat check valves – VI series PVC-U Valvole di non ritorno a sede inclinata – serie VI SOLVENT WELDED METRIC SPIGOTS Rev. Jan 2020 FN4049 All descriptions and illustrations in this publication are intended for guidance only and shall not constitute a ‘sale by description’. All dimensions given are nominal, while changes can be done on the information, products and specifications from time to time for a variety of reasons, without prior notice. The information in this publication is provided ‘as is’ on the revision date stated on the sheet. Updates will not be issued automatically....

 Open the catalog to page 5

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