PFA Lined Swing Check Valve, API 594, A351 CF8, DN40, PN16

Product Name: PFA Lined Swing Check Valve
Type: Swing Type Check Valve
Design Standard: API 594
Body Material: ASTM A351 CF8, Cast Stainless Steel
Lining Material: PFA
Size: DN40, 40 mm, 1-1/2 Inch
Pressure: PN16, Class 150 LB
End Connection: RF Flanged

The PFA lined Check Valve are developed for use in extremely corrosive applications, full port design can be installed either vertically and dependent upon application horizontally as well. Lining material such as PFA and conductive PFA have exceptional corrosion resistance. A swing check valve a hinge , either onto the seat to block reverse flow or off the seat to allow forward flow. The seat opening cross-section may be perpendicular to the center line between the two ports or at an angle. Although swing check valves can come in various sizes, large check valves are often swing check valves. Swing check valve shut off depends on gravity and reverse flow. The pivot point of the swing check valve is outside the edge of the disc and, the greater the head, the greater the possibility that the fluid will flow back through the valve before the disc can shut off. To affect complete shut off, the disc of a swing check valve must travel through a 90 angle arc to the swing check valve seat.

Technical Specification

» Nominal Diameter: 1/2-20 Inch, DN15-DN500

» Design Pressure: CLASS 150, PN10, PN16, PN25

» Design temp: -29°C-180°C

» Materials: Carbon Steel, Stainless Steel, Duplex Steel, etc

» Lined Materials: FEP, PFA Lined, etc

» End Connections: RF Flange

» Design and Manufacture: JB/T 8937, API 594

» Face to Face (End to End): GB/T 12221, API 594

» Flanged Connection: GB/T 9113, ANSI B16.5

» Test and Inspection: GB/T 13927, API 598

Key Features

» The valve is lined with Fluorinated Ethylene Propylene (FEP) or Perfluoroalkoxy (PFA), providing superior chemical resistance, non-stick properties, and protection against corrosion and abrasion.

» The FEP/PFA lining offers exceptional protection against corrosive chemicals, making it ideal for aggressive media and harsh environments.

» The corrosion-resistant lining and durable construction ensure the valve lasts longer, reducing the need for frequent replacements and maintenance.