Gate valves (API 600)

Features and benefits

• Universal trim: 13Cr stem, wedge in CA 15 or 13Cr faced, and CoCr alloy faced seat API Trim 8 suitable for applications up to 850°F (454°C).
• Seat face CoCr alloy hardfaced, ground and lapped to a mirror finish.
• Flexible wedge with low center stem-wedge contact, in solid CA15 (13Cr) or hardfaced with 13Cr, SS 316, Monel or CoCr alloy. Wedge is ground and lapped to a mirror finish and tightly guided to prevent dragging and seat damage.
• A CoCr alloy hardfaced CF8M wedge is also available.
• Non-rotating stem with precision Acme threads and burnished finish. Double Acme for faster operation.
• Body and bonnet joint accurately machined. 
• Body and bonnet castings are precision machined.
• One-piece bonnet  for better alignment and fewer parts for Class 150 up to NPS 16 (DN 400).
• Flanges:
• ASME Classes: 150–300: 1⁄16” raised face 
  ASME Classes: 600–1500: ¼” raised face 
  Finish: 125–250 AARH for all valves.
• Rotating stem nut is Austenitic ductile iron Gr. D-2C renewable in line (as shown).
• When handwheel is used, thrust bearings are supplied as follows:
  ASME Classes 150–300: NPS 10–12 (DN 250–300), 1 bearing (top)
  NPS 14 (DN 350) and up, two bearings
  ASME Classes 600–1500: NPS 6 (DN 150) and up.