Dmmond XR

The combination of the internal gate guides and the shearing tip removes any option of defection when solids encountered. Any solid hit by the shearing tip is sheared and shifted out, preventing any warping or deflection that could result in atmospheric leakage.

Thanks to the specially performed knife we can ensure a zero-leakage rating when primary
seal meets the knife. The main function of the secondary seal is to avoid any possible atmospheric leakage.
In order to allow this low discharge rate, a precision manufacturing creates a metal-to-metal seat between the gate and the body when closed, providing an extra sealing for the most severe appliacionts.

From optimized parametric design 3D modeling tools, to Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD) systems, our reliable knife gate valves are ready to be manufactured with confidence.

Every component is designed and validated by top-notch softwares by the paravalves engineering team.

At paravalves Dmmond XR special top gate sealing concept is designed to ensure full tightness to the atmosphere even for gas or highpressure water applications. The design allows flow media with high consistency either for normal or reverse flow due to the bi-directional U-shaped seat design.

Every design is fully hydrostatically tested at our facilities according to API 598, testing body cavity at 1.5 times the design pressure.

Thanks to its injectable packing, leaking issues can be easily solved without stopping any process.

Just one tool is the only thing you need to ensure optimum packing performance. Inject the packing through the packing screws holes, retighten the screws and continue with normal operation.

Ni-Hard wear rings or other special materials are available under request for extreme condition applications, ensuring best performance of the valve at heavy duty applications as well as a longer life for the equipment.