Kemix - Launder Gate Valves
The Kemix launder gate is comprised of a U-frame suited to the launder, a isolating spade, frictionless guide, polyurethane coated side seal, polyurethane coated bottom T-Seal, sealing locking cams and either a hand wheel (manual launder gate), hydraulic actuator (hydraulically automated launder gate) or pneumatic actuator (pneumatically automated launder gate).
The operation of sealing the launder through the use of a Kemix launder gate is identical for the manual and automated versions of the launder gate. When in the closed position the isolating spade of the launder gate creates a seal on all three interfaces (both sides and bottom) between the isolating spade and the U-frame using two polyurethane coated side seals and a polyurethane coated bottom seal which prevents the ingress of pulp.
Both vertical side interfaces between the spade and U-frame are sealed through the use of adjustable sealing locking cams, frictionless guides, polyurethane coated vertical sealing faces perpendicular to the wall of the U-frame.
When the spade is lowered into a closed position the sealing action on both sides of the spade and the U-Frame is achieved by a compression force created by the pressure exerted by the adjustable sealing locking cams onto the spade. This causes the polyurethane coated side seals to compress against the sealing face of the isolating spade.
The bottom or third sealing face between the spade and U-Frame is created by the downward force exerted by the closing application (manual or automated) which causes the polyurethane coated T-seal located at the bottom of the spade, to compress against the bottom of the launder gate U-frame.