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Check valve – Item 57

Check valve – Item 57
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Check valve – Item 57

Product catalog summary
Components and Materials:
  • Body: EN-GJS-400-18-LT
  • Cover: Carbon Steel
  • Seat: Stainless Steel 1.4021
  • Disc: Stainless Steel 1.4021
  • Spring: Zinc Plated Steel
  • Gasket: Graphite + Stainless Steel
  • Screws: Carbon Steel
Key Features:
  • Spring allows for vertical installation.
  • Rotating disc mechanism.
Dimensions and Performance:
DN (mm)D (mm)L (mm)H (mm)Weight (Kg)Kv (m3/h)
1595130752.64.6
20105150753.77.3
25115160854.711.7
32140180856.216.8
40150200105926.7
501652301151142.6
6518529014517.477.9
8020031015022.8111
10023535016535.8177
12527040018548.8262
15030048020569368
200360600245121664
Temperature and Pressure Ratings:
  • Temperature range: -10°C to 350°C
  • Pressure ratings vary with temperature: 25 bar at -10°C to 120°C, decreasing to 17.5 bar at 350°C.
See more

Catalog excerpts

Check valve – Item 57-1

Molla per funzionamento anche In verticale Spring for vertical installation Otturatore rotante Rotating disc Sede mandrinata Pressed-in seat Impianti di trasmissione calore, centrali termiche, caldaie e serbatol, impianti di teleriscaldamento, applicazioni con olio diatermico, ecc. Heat transfer systems, thermal power stations, industrial boilers and tanks, district heating plants, diathermic oil installations, etc. Acqua calda e/o surriscaldata, vapore, aria, fluidi diatermici, ecc. Hot water and/or overheated water, steam, air, diathermic fluids, etc. Materiali Materials Componente Corpo Coperchio Sede Otturatore Molla Guarnizione Viti Components Body Cover Seat Disc Spring Gasket Screws Material EN-GJS-400-18-LT Carbon Steel St. Steel 1.4021 St. Steel 1.4021 Zinc Plated Steel Graphite + St. Steel Carbon steel

 Open the catalog to page 1
Check valve – Item 57-2

Condizioni di esercizio/ Working conditions Temperature - Temperature [°C] -10/120 150 200 250 300 350 N0TA: Kv a valvola completamente aperta NOTE: Kv at fully open valve Varianti costruttive Manufacturing variations N0TA: A richiesta disponibili molle tarate per specifiche pressioni di apertura NOTE: On request special spring for specific opening pressure

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.