Stainless Steel Slurry & Pulp Knife Gate Valve -- CF8 / CF8M (MSS SP-81)
Supreme Valves' heavy-duty Stainless Steel Slurry & Pulp Knife Gate Valve (MSS SP-81 compliant). Featuring a cast stainless steel body (ASTM A351 CF8 / CF8M / CF3M) and a high-polish, bevelled gate in AISI 304 / AISI 316 designed to cut through high-density paper pulp, chemical sludges, mining slurries, coal ash, and fibrous media. Available with metal-to-metal or soft elastomer seats (EPDM, PTFE, Viton) for Uni- and Bi-Directional bubble-tight shutoff. Handwheel operated standard.
Key Applications
Technical Specifications
Material Options
Carbon Steel
ASTM A216 WCB, A105, A350 LF2
Stainless Steel
SS304, SS316, SS316L, SS321, SS347
Alloy Steel
ASTM A217 WC6, WC9, C5, C12
Duplex Steel
F51, F53, F55, Super Duplex
Exotic Alloys
Monel, Hastelloy, Inconel, Titanium
Bronze & Brass
Gunmetal, Aluminum Bronze, Naval Brass
Purchase Options
Features & Benefits
High Performance
Designed for reliable operation under demanding conditions with minimal maintenance requirements.
Quality Assurance
Complete material traceability, mill test certificates, and compliance with international standards.
Wide Application Range
Suitable for Pulp & Paper Stock, Mining Slurry, Chemical Processing, Fly Ash Pipelines, Wastewater and many other industrial applications.
Expert Support
Technical assistance for valve selection, sizing, and application engineering from our experienced team.