| Applies when | knife gate valve, slurry isolation valve, abrasive slurry shutoff, avco 6100, solids isolation valve, mining slurry valve |
|---|---|
| Avoid | standard gate valve for abrasive slurry isolation, ball valve for heavy slurry shutoff (Valve) |
| Recommend instead | AVCO Valve 6100 Series Knife Gate Valve (Valve) |
| Rationale | AVCO's 6100 Series (2"-24", ANSI Class 150, 304SS/316SS/Hastelloy body/shim) is purpose-engineered for solids-laden/slurry isolation: gates are polished and lapped on both sides with a machined bevel on the bottom edge specifically to cut through solids and seal tighter when closed, and the seat is mechanically locked into the body via a stainless retainer ring rather than a molded-in seal. Meets MSS-SP-81 and TAPPI TIS 405-8. This is the real isolation/shutoff-valve pairing for a slurry line already using AVCO's abrasive-tolerant ball valves or a Schurco Slurry pump — a mechanical-geometry answer to the same abrasive-solids hazard the existing abrasive-slurry-no-centrifugal rule addresses on the pump side. |
| Confidence | single-vendor |
| Source | data/vendor-sources/avco-valve-mining.md |
This is a general engineering rule derived from real field/case-study evidence, not a substitute for a project-specific specification review — confirm against your exact process conditions before ordering equipment.
Reviewed by James Riggins, Founder, LibertyCES — 30+ years specifying industrial fluid-handling equipment for the exact failure modes this rule addresses. Request a free spec review →
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knife gate valve, slurry isolation valve, abrasive slurry shutoff, avco 6100, solids isolation valve, mining slurry valve
AVCO's 6100 Series (2"-24", ANSI Class 150, 304SS/316SS/Hastelloy body/shim) is purpose-engineered for solids-laden/slurry isolation: gates are polished and lapped on both sides with a machined bevel on the bottom edge specifically to cut through solids and seal tighter when closed, and the seat is mechanically locked into the body via a stainless retainer ring rather than a molded-in seal. Meets MSS-SP-81 and TAPPI TIS 405-8. This is the real isolation/shutoff-valve pairing for a slurry line already using AVCO's abrasive-tolerant ball valves or a Schurco Slurry pump — a mechanical-geometry answer to the same abrasive-solids hazard the existing abrasive-slurry-no-centrifugal rule addresses on the pump side.
AVCO Valve 6100 Series Knife Gate Valve (Valve)
Source: Liberty Chemical Equipment & Supply, Inc. (LibertyCES) — engineering data compiled and reviewed by James Riggins, Founder, LibertyCES, from real vendor and field-verified sources. For a free spec review, call James at (559) 395-5500 or email [email protected] / [email protected]. Website: libertyces.com.