Red Valve 8NPT Pneumatically Actuated Knife Gate Valve

Red Valve's 8-inch pneumatically actuated knife gate valve is built for reliable isolation of solids-laden fluids in heavy‑duty pipeline systems. Powered by a compressed air actuator, it uses a 3/8‑inch NPT air inlet and an 80 psi air supply, enabling quick, positive opening and shutoff in 8-inch lines. This model is part of Red Valve's Flexgate family of pneumatic knife gate valves, designed to handle slurries, sludge, and viscous liquids in applications such as wastewater treatment, chemical processing, and mining where solids can affect flow. The 8-inch size provides a robust flow path and seating area to maintain tight shutoff, even under demanding service, while the compact actuator arrangement minimizes footprint. Typical installations retrofit into existing 8-inch process lines where solids must be isolated without leakage or clogging. For exact working pressure limits and compatibility, refer to Red Valve's official product literature for pneumatic knife gate valves in the Flexgate family.