The QB model double flanged knife gate is an uni-directional valve designed for general industrial service applications. The design of the body and seat assures non-clogging shut off on suspended solids in industries such as:
Wastewater treatment plants
Chemical plants
Food and Beverage etc.
Body:
Wafer style cast monoblock with raised face, with reinforced ribs in larger diameters for extra body strength. Internal cast-in gate wedges and guides allows for tighter shut-off. Full port design for greater flow capacity and minimal pressure drop. Internal design avoids any build up of solids that would prevent valve from closing.
Gate:
Stainless steel gate as standard. Gate is polished on both sides to avoid jamming and seat damage.Bottom of the gate edge is machined to a bevel to cut through solids for a tighter seal in the closed position. On request: thickness and/or material of the gate can be changed for higher pressure requirement.
Epoxy coating:
The epoxy coating on all JCS cast iron and carbon steel valve bodies and components is electrostatically applied making the valves to be corrosion resistant with a high quality finished surface.
Materials:
Body:WCB, 304, 316, 316L
Gate:2Cr13, 201, 304, 316, 316L
Stem:2Cr13, 304, 316
Sealing:EPDM, NBR, Viton, PTFE, Metal, Stellite
Note: Other materials can be supplied on clients' request.