Metal seated valve refers to the mechanical seals systems of valve made by metal. Compared with soft seated valve, these valves mainly used for medium containing solid particles or high temperature above 200 ℃ environment or large diameter valve that with large torque. The surface of the metal seat offers high hardness and specified hardness intercept, that the hardness and abrasion resistance can be enhanced by surface hardening. Metal sealing materials mainly including chromium alloy, cobalt alloy, nickel alloy, tungsten carbide, stainless steel and so on. Almost any type of valve can be metal sealed designed.

Seat assembly consists in an outer metallic seat carrier with a soft seat insert, provided with outer O-ring to avoid leakage through the seat carrier and graphite back up ring which ensures the tightness in case the O-ring failure. As a leading industrial valve manufacturer and supplier, PERFECT produce a series of metal seat valve for sale to meet the most severe requirements of corrosion resistance of flow media. Our metal seated valve is available from ANSI 1500 class up to 2500 pressure and We can also accept the OEM design. Please review the charts below for available sizes & pressure & material or fill the contact form below.

Features
  • The metal seated design offers  excellent sealing performance and long service life;
  • Sealing surface welding Co hard alloy, good wear resistance, corrosion resistance and abrasion resistance;
  • The metal seat offers high hardness and specified hardness intercept, that the hardness and abrasion resistance can be enhanced by surface hardening.
  • Applicable to any temperature, especially in high temperature above 200 ℃;
  • Long service life and a low cost for long run
Specification

Metal seated valve design

Available types 
  • Metal seated ball valves
  • Metal seated gate valves
  • Metal seated check valves
Design Standard
  • API 6D
  • API 6A
  • ASME B16.34
F to F Standard ASME B16.10
Testing Standard API 598
End Connection Standard ASME B16.5
Size
  • NPS 3/4″~12″(DN20~DN300)
Pressure Class Range:
  • ASME Class 150~2500
Ends Flange End, Butt weld, Screwed End
Materials
  • Body: WCB, CF8, CF8M, LCC, Hast Alloy,  Super Duplex, LCB, etc
  • Disc: WCB, CF8, CF8M, Hast Alloy, Super Duplex, LCB, etc
  • Seat: surface hardening with chromium alloy, cobalt alloy, nickel alloy, tungsten carbide, stainless steel and so on.

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