Knife Gate Valve for Mining

First knife gate valve captured from any vendor in this project — a distinct architecture from every ball, butterfly, diaphragm, plug and check design in the corpus. The mechanisms are the content: the seat is mechanically locked into the body via a stainless steel retainer ring, and the gates are polished/lapped on both sides with a machined bevel on the bottom edge specifically to cut through solids and seal tighter closed. Meets MSS-SP-81 and TAPPI TIS 405-8. Real discrepancy preserved: AVCO's marketing text references cast iron while its materials list names only 304SS/316SS/Hastelloy — AVCO's own inconsistency, to be resolved with the vendor before quoting cast iron. This is strong evidence.

Documented examples include AVCO 6100 Series Knife Gate Valve (2"-24", ANSI Class 150, 150# lug ends; body/shim 304SS, 316SS or Hastelloy; Standard, V-Port or Deflector Cone port; Metal, Buna, EPDM, Neoprene or Viton seats with Metal and EPDM most common; handwheel with grease nipple and protective stem cover; full pneumatic actuator/solenoid/positioner kits; literature 6000-Series-CD230620.pdf and 6100-Series-IOM-Manual-CD230929.pdf) — confirm current specifications with the manufacturer before final selection.