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Plate springs are able to compensate for the decreasing volume of the packing cords by exerting an additional compressive force on the packing goggles.

Product description

Plate springs are capable of compensating for the decreasing volume of the packing cords by exerting an additional compressive force on the packing goggles. When the volume of the sealing cords decreases and the force on the goggles decreases, the disc springs expand to largely compensate for this decrease.

  • Although there is a slight drop in pressure, the preload on the gland is safely above the leak class level.

The tightness of valves fitted with disc spring kits is many times longer, and is also affected by the quality of the seal itself and its installation.

Disc spring and packing ring sets

Pokorný designs and supplies sets of disc springs and packing rings for valves including installation instructions, calculation of tightening torques and friction force.

The kit includes disc springs in designed arrangement and number ready for instant installation, seal ring kits according to media type and installation instructions.

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We can create the perfect seal for your needs, including non-standard sizes.

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Live Loading - Flange Connections

Plate springs are an effective solution to flange joint leaks caused by insufficient bolt preload, where there is a drop in specific pressure on the seal and therefore possible leaks.

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