Description

The QB model pneumatic knife gate valve 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 ***** design avoids any build up of solids that would prevent valve from closing. Gate: Stainless steel gate as ***** 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. Seat: (resilient) Unique design that mechanically locks the seat in the internal of the valve body with a stainless steel retainer ring. Standard EPDM also available in different materials such as NBR, Viton, etc. Stem: The standard stainless steel stem offers a long corrosion resistant life. 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, **4, **6, **6L Gate:2Cr*3, **1, **4, **6, **6L Stem:2Cr*3, **4, **6 Sealing:EPDM, NBR, Viton, PTFE, Metal, Stellite Note: