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Kerotest EV-11 Soft-Seated Valves EV-11 Soft-Seated Valve Delivers State-of-the-Art Performance The Soft-Seated EV-11 Valve was developed in response to an industry request
. . . . The innovative EV-11 Valve design eliminated the lower body cavity common to traditional gate valves. The bubble-tight seal and no-cavity design eliminated the "build-up" of tramp materials and ice in the body cavity. The EV-11 full bore design also provided for minimal pressure drop through the valve, solving the reduced-port problem associated with standard plug valves. Industry embraced the innovative EV-11 Soft-Seated Valve. Today, applications for the valve include general use with both natural gas distribution and transmission companies, liquid pipelines, and industry. Kerotest's EV-11 Soft-Seated Valve requires no lubrication, making it an
excellent choice upstream of meters and regulators. Unique Design Provides Bubble-Tight Shut-off The EV-11 features a unique rubber seal compatible with most gas and liquid applications employing a simple seat sealing concept which eliminates traditional body seats and lubricants, while providing bubble-tight shut-off. The EV-11 is sealed by a rubber seal which surrounds the top and sides of the gate. A metal reinforcement band within the rubber secures the seal within the gate as it seals both the bore and neck of the valve against leakage across the gate. The gate is guided into the closed position by means of integral guides on the gate which straddle a web cast into the body. Thus, the body serves as a sealing surface. The valve body has a smooth, round bottom with no cavity to accumulate debris which could impair the movement of the gate. Also, with no cavities, there is no place for condensate to accumulate. Thus, the possibility of freezing is eliminated. How the Soft-Seated Valve Works Upon closing the valve, the thrust of the stem forces the speader to compress the rubber seal outward against the body. This action provides a bubble-tight seal around the neck and bore of the valve. Stem Seal The stem is of 416 stainless steel for added corrosion resistance, and is sealed with a bronze bushing which features double "O" rings. This stem seal eliminates leakage and reduces operating torque for ease of actuation. 2" through 12" - Full Port Class 150, 500# WOG, Class 300, End Connections - Flanged, Weld and Weld by Flanged Ends The Kerotest EV-11 Soft-Seated Valve is an economical field-proven, full opening, non-rising stem gate valve. This unusual gate valve incorporates an exclusive "elastomer seat" seat design - a simple method which solves leakage problems without requiring lubrication or conventional seat inserts. This remarkable general service valve is ideal for natural gas distribution applications including manifolds, flow lines, regulator stations, and meter runs. The full-opening, uncomplicated design of the EV-11 "soft-seat" gate valve makes it ideal for water, oil and other liquid applications. The unique design incorporated in the Kerotest EV-11
Soft-Seated Valve was originally patented in Europe. Introduced into the U.S.
market in the 1970's, the EV-11 won swift, virtually immediate, acceptance.
Kerotest has continued the refinement of this proven design. Today's EV-11
embodies three decades of accumulated knowledge in design and materials. EV-11 Offers Multiple Features and Benefits:
Ordering Table for 275 WOG:When Ordering,
please specify valve size, end configuration pressure rating.
will be double. Ordering Table for 500 & 720 WOG:
When Ordering, please specify valve size, end
configuration pressure rating.
will be double. Soft-Seated Valve Suitable for Numerous Applications *General valve requirements for bubble-tight shutoff Options Customize Valve to Application
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