Shear Gate Valves
Shear gates are designed for use in lines of low seating pressure for filling and emptying tanks, low sludge discharge lines and similar applications. Shear gate valves are ideal for tanks where sludge tends to stick. They provide a tight shearing action upon closing that removes any sludge remaining on the seat of the valve.
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Cast iron design allows for less potential for failure over time.
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Two-part epoxy coating provides lasting protection against corrosion.
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Machined bronze to bronze seat provides a strong surface for shearing.
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To allow for easy use of the lift rod, Troy Valve offsets the bolt circle of the body flange 30 degrees from the center line.
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A unique single wedge design allows for complete closure, while double wedge gates can cause the disc to get hung up on the wedge on the pivot side and not allow the disc to engage the wedge on the handle side.
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A 2-foot lift rod is provided in steel with a cast iron handle and hook catch, but the rod is available in stainless steel at a variety of custom lengths.
Shear Gate Valve
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The valve is operated by manually lifting the pull rod connected to the disc. The valve may be held in various open positions by using the adjustable catch hooks on the pull rod.
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Troy Valve's Shear Gates are available in the following sizes:
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Even sizes from 4" - 20"
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24"​
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Body and disc are shop coated at the manufacturing facility. Periodic visual inspection of the coating is recommended with field cleaning and painting as required. The seating may be adjusted by tightening or loosening the hinge bolt nut to change the relationship between the hinge bolt and wedge. Use a feeler gauge of .004 to adjust gate disc to the proper seat gap around the total seating circumference.
