Robvalve - Double Excentric Butterfly Valves

Based on EN593, taking into account AWWA C504 standard to increase the safety and service life of the products.

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The aeronautic internal design lowers the resistance of the fluids.
The sealing shaft design well protects the shaft from medium and increases the concentricity to reduce the torque, extending the service life of the shaft.
The shaft doesn’t pass through the sealing rings, so the sealing rings can be replaced while the valve is open.
Strong shaft bushings support the disc in its center position; the valves can be installed horizontally or vertically.
The optimized double-eccentric design realizes the minimal torque to close/open the valve while keeping sealing. And the minimum interference prolongs the service life of the valves.
The stainless steel seat is integrally produced, embedded into the body to fit closely, forming a corrosion-proof and wear
resistance seal surface that can efficiently prolong the service life of the valves.
The tightness is achieved by T-type resilience sealing ring which is inlaid between disc and disc gland ring. When the disc is closed, sealing ring will be extruded by disc gland ring to form two-way sealing. Sealing ring can be replaced without disassembling the disc. Self-reinforce seal function can be achieved when valve is closed and the pressure of fluid from different directions can enhance this effect.
Akzo Nobel epoxy resin powder coating ensures excellent painting adhesion and anti-corrosion capacity.
Adjusting screws on the top and the bottom to make sure the position of the disc can be fine-tuned to keep tightness.

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