Universal Trim: Stem 13Cr, wedge clad with CA 15 or 13Cr, and seat clad with CoCr alloy (API Trim 8), suitable for applications up to 850°F (454°C). The seating surface is hard-faced with CoCr alloy, precision-ground, and mirror-polished.
Flexible Wedge: Features a low center-of-contact stem-to-wedge design, made of solid CA15 (13Cr) or clad with 13Cr, SS 316, Monel, or CoCr. The wedge is ground, polished, and tightly guided to prevent dragging and seat damage. A CF8M wedge with CoCr hard-facing is also available.
Non-Rotating Stem: Precision ACME threads with polished finish. Double ACME for faster operation.
Body & Bonnet: Machined accurately. Precision-cast body and bonnet. Single-piece bonnet for better alignment and fewer parts (Class 150 to NPS 16 / DN 400).
Flanges:
-
ASME Class 150–300: 1⁄16″ raised face
-
ASME Class 600–1500: ¼” raised face
-
Finish: 125–250 AARH for all gate valve API 600.
Rotating Stem Nut: Renewable austenitic ductile iron Gr. D-2C (as indicated).
Handwheel Thrust Bearings:
-
ASME 150–300: NPS 10–12 (DN 250–300) – 1 bearing (top)
NPS 14 (DN 350) & above – 2 bearings -
ASME 600–1500: NPS 6 (DN 150) & above – 2 bearings
