Description
Resilient Wedge Gate Valve Description
The resilient wedge gate valve utilizes a wedge disc made of elastic material that provides tight shutoff when sealed against rubber seats in the valve body, stopping fluid flow. This resilient wedge design enables smooth, low-torque operation. Resilient wedge gate valves are commonly applied for isolation and flow control in water distribution and sewage collection systems, as well as in treatment plants and other water infrastructure. The elastomeric properties of the wedge ensure durable, leak-tight closure over repeated operating cycles. Resilient wedge gate valves come in a range of sizes to fit various pipe diameters and pressure requirements. Their ability to regulate flow makes them well-suited for water system control applications. Popular resilient wedge gate valve models include the Econ Resilient Wedge and Mueller Resilient Wedge. Learn more about resilient wedge gate valve sizing.
Resilient Wedge Gate Valve specifications:
| Specification | Description |
|---|---|
| Valve Type | Resilient wedge gate valve meeting AWWA C509 standards |
| Valve Design | Non-rising stem, flanged ends, rubber encapsulated wedge |
| Body and Bonnet | Cast iron ASTM A126 Class B |
| Wedge | Encapsulated natural rubber |
| Stem | Cast bronze with integral thrust collar |
| Stem Seal | Double O-rings, permanently lubricated |
| Seats | Reinforced rubber for bi-directional shutoff |
| Operators | Handwheel sized for pressure rating |
| End Connections | 125 lb flanged ends per ASME B16.1 |
| Pressure Rating | 200 psig minimum |
| Testing | 500 psi hydrostatic shell test, 200 psi seat test |
| Coatings | Fusion bonded epoxy interior and exterior |
| Sizes | 3″ to 48″ diameters |
| Service | Water distribution, sewage collection, water treatment |
Resilient Wedge Gate Valve Description Features:
• Wedge Disc – The wedge disc is made of elastic material, usually fully encapsulated rubber, that provides tight shutoff when forced against the valve seats.
• Low Torque Operation – The wedge’s ability to deform slightly allows for smooth, low-torque actuation compared to solid wedge gate valves.
• Tight Shutoff – The resilient wedge provides bubble-tight bi-directional shutoff when fully closed, preventing fluid flow in either direction.
• Durability – The elastomeric properties of the wedge allow it to flex without compromising sealing performance, providing high durability and long service life.
• Range of Sizes – Resilient wedge gate valves are produced in sizes from 2″ to 48″ to accommodate various pipe diameters.
• Pressure Ratings – Pressure ratings up to 250 PSI are available to suit different pressure requirements.
• Flow Regulation – The wedge design allows reliable throttling for flow regulation applications.
• Water System Use – Resilient wedge gate valves are commonly used for isolation and control in water distribution, sewage collection, and treatment plant systems.
Resilient Wedge Gate Valve Description Advantages:
• Low Operating Torque – The elastomeric wedge requires less torque to operate compared to solid wedge designs. This allows easy actuation by hand or with small actuators.
• Tight Shutoff – The conforming rubber-to-rubber seal provides bi-directional bubble tight shutoff when closed. This prevents fluid flow and leakage.
• Long Service Life – The resilient wedge flexes with minimal wear, providing durable service over thousands of operating cycles.
• Reduced Slam and Surge – The wedge’s ability to deform gradually slows closure, reducing water hammer effects.
• Flow Regulation – The contoured wedge shape allows smooth, accurate flow control modulation.
• Reduced Maintenance – The self-cleaning resilient wedge requires less maintenance than metal seated designs.
• Corrosion Resistant – The elastomeric wedge and seats are highly corrosion resistant.
• Fire-Safe Design – Resilient wedges can withstand high temperatures in fire scenarios.
• Cost Effective – The simple resilient wedge design provides excellent performance at a moderate cost.