The Dual Plate, Wafer Check Valve employs two-spring-loaded plates hinged on a central hinge pin. When ball check valves encounter high pressures and dynamics, severe slamming may result.
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The ball check valve is one of the few check valves that works well in both water and wastewater applications.īall check valves are simple in operation and commonly used on small pumps and in low head systems.Ĭonsider adding an optional roll-bar to the piping system for safety ball check valves have the highest tendency to slam due to the ball’s high inertia long stroke. Metal seated check valves may not provide drop tight sealing when used in gas system or fluid system with low back flow pressure or fluids containing particles. This design provides a tight seal as well as a fast reaction to the closure impulse. The piston check valves are designed with globe valve bodies, producing an increased drop pressure in the pipeline. Piston Check valves are generally used to protect pumps or similar equipment, allowing the flow only in one direction and preventing flow reversal due to back pressure. These valves can be installed in horizontal and vertical lines. Tilting Disk Check Valves fit between two flanges and provide a compact installation for large diameter applications.
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Premium Graphoil spiral wound gaskets for high pressure/temperature services other gaskets available.īody cap joints designed for optimum sealing with spiral wound gaskets, strong bonnet bolts designed for easy maintenance. Pressure – temperature rating according to ASME/ANSI B16.34.įace to Face according to ASME/ANSI B16.10 class 300 RF and 600RF.įlanged dimension according to ASME/ANSI B16.5 class 300 RF and class 600 RF, Finish 125-250 AARH. Shell wall Thickness according to ASME/ANSI B16.34 class 300 and class 600. Valve design according to ASME/ANSI B16.34, BS 1868.
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Lever counter weight is available on larger diameters.įLANGED - N596B (CLASS 300) & N696B (CLASS 600) Our proprietary products and vast technical expertise in the valve industry allows Trueline to provide valve solutions for the most severe service applications.Īvailable with hydraulic counter weight, for slow closing.