Larox High Pressure Knife Gate Valve (LKH) - Flowrox Oy - #1

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Larox High Pressure Knife Gate Valve (LKH) Larox Heavy Duty High Pressure Knife Gate Valve is built with a cast body and features a heavy-duty stainless steel gate. Removable seats on either side of the blade provide a bi-directional bubble tight seal, with no metal parts in contact with the slurry. LKH is available with pressure rating up to 20 bars. Valve Operation In the open position the two sleeves seal against each other in the centre of the valve, providing a full bore through which the slurry can travel without being in contact with any metallic components. Closing the valve forces the gate progressively down between the two mating sleeve ends until it reaches the fully closed position, at which point the sleeves seal tight against either side of the gate, effectively sealing and completely containing the line pressure. Any material/medium discharged between the sleeves during stroking open or closed is collected within the containment area of the valve body and drained via the multiple flushing ports in the body. Features • Double seat design for heavy duty slurry service • Easily replaceable ring sleeves • Full bore • When open, the knife-gate is fully withdrawn from the slurry flow • No metal parts in contact with the flowing slurry • Bubble tight shutoff • No clogged bonnet to impede flow • External epoxy coated • Easily adapted to suit most actuators • Low maintenance requirements • Suitable for wet or dry service • Bi-directional flow • No packing gland to maintain • Wide range for elastomer available • No seat cavity where solids can collect and prevent full gate closure Valve Body Actuators - Heavy duty cast body - Manual - Heavy duty yoke frame - Manual gear - Lubrication ports - Pneumatic - Flushing ports - Hydraulic - Open/closed lockout brackets - Electromechanical standard How the rubber ring sleeves work Matching rubber ring sleeves are placed in the valve housing to seal against the gate when the valve is closed and seal against each other when the valve is open. This tight seal contains the high internal line pressure. Double seated design provides bi-directional flow and tight shut off.