The C-Series Double-Flapgate Airlock Valves are designed for high-pressure applications up to 20 psi and temperature extremes up to 1,650˚F or higher depending upon the application.Meyer is the only manufacturer to offer a double-flapgate product that can operate reliably in pneumatic conveying systems at these pressures. The C-Series is available in both the “short” low-profile HPSC model and the “tall” high-profile HPTC model. Both models are offered with a choice of pneumatic, electro-mechanical or gravity/counterweight actuation. A triple flapgate configuration is also available if better suited to your particular application.