Gate valve

Universal Trim of Gate valve:13Cr stem, wedge in CA 15 or 13Cr faced, and Stellited seat API Trim 8# suitable for applications up to 454
Seat face of Gate valve: stellited. ground and lapped to a mirror finish.
Flexible Wedge: with low center stem-wedge contact in solid CA15(13Cr)or hardface with 13Cr ,SS316,monel or stellited. Wedge is ground and lapped to a mirror finish and tightly guided to prevent dragging and seat damage.a stellite 6 hardfaced CF8M wedge is also available.
Non-rotating Stem: with precision Acme threads and burnished finish. Double Acme for faster operation.
Body and Bonnet: castings are precision machined. One-piece bonnet up to 12"(300mm)for better alignment and fewer parts.
Gland: has two-piece construction for easy alignment.
Flanges:
Classes 150-300:1/6" raised face.h
Classes 600-1500:1/4" raised face.
Finish 125-250 AARH for all valves
Rotating Stem nut of Gate valve: is austenitic ductile iron Gr D-2C renewable in line(as shown).Thrust bearings are supplied as follows:
150-300Lb:10-12"(250-300mm).
1 bearing (top)
16"(400mm) and up
2 bearings
600Lb:6"(150mm) and up
900-1500Lb:6"(150mm)and up