Bi-directional seal Rubber Lined Knife Gate Valve, Ductile iron body, rubber lining design,avoiding the media corrode the body, the bottom of the body with groovless. When the valve is closed, the bottom of the gate edge contact with the seal and then compress the seal into the groove in the body and sealed gate realization; when the gate opens, separate gate from the bottom edge of the seal, seal will bounce to same level as groove, which will prevent the media sediment accumulated in the body cavity of the groove, no clogging, no residue,pipe easy to clean, so as to effectively improve the sealing effect knife gate valve to prevent leakage when the valve is closed.
Bi-directional seal Rubber Lining Knife Gate Valve

Frequently Asked Questions
What rubber lining will be supplied for my medium?
The page describes a rubber-lined knife gate valve but the actual lining compound must be confirmed for the order. Provide the medium, concentration where relevant and pressure-temperature conditions and request the complete wetted-material specification.
Does the bidirectional description cover my reverse-pressure condition?
Provide the pressure conditions in each direction and the required shutoff duty. Request confirmation of the permitted bidirectional service for the exact valve configuration rather than assuming identical limits under every condition.
What process details should I send for a solids-handling application?
Include the solids content, particle characteristics, operating flow and cleaning requirements. Ask for confirmation of the selected gate and sealing arrangement and the required maintenance access; do not assume that rubber lining makes the valve immune to deposits or abrasion.