Gate valves (API 600)
Size range(s)
NPS 2 - 64
(DN 50 - 1600)
Pressure rating
ASME Classes
150 - 1500
Standard connections
Flanged
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 casting 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: 1/4” raised face.
Finish: 125-250 AARH for all valves.
- Rotating stem nut is Austenitic ductile iron Gr. D-2C renewable in line.
- 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.