Your one stop for most of your fluid sealing needs, packing, gaskets, mechanical seals, sewn products, orings, hydraulic packing, pump packing. No sweat if it is. View Macrotech Polyseal Inc location, revenue, industry and description. Find related and similar companies as well as employees by title and much more. Macrotech Polyseal Inc.. W. South, Salt Lake City, Utah , United States.

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Machinery seal – Macrotech Polyseal, Inc.

The seal elements are made of a relatively hard, high strength plastic material resistant to wear from frictional forces, for example nylon. A yet further object of the instant invention is a seal assembly having a pair of identical nesting seal elements comprised of a high strength, relatively hard plastic material that are capable of bridging small ports in relatively moving machine parts. The upstream seals in these multi-seal arrangements, known as buffer seals, serve to protect the primary rod or piston seal from macroech surges, thereby extending the useful life thereof.

Salt Lake City, UT. Piston ring assembly for stirling macrotsch. This feature of the present invention allows macrotrch thermal expansion of the assembly in the seal gland and prevents, for example, the expansion of the assembly to a point where friction between the seal elements and the relatively displaceable part causes additional thermal expansion, eventually resulting in catastrophic seal failure.

This feature of polyseak instant invention provides for interference between the seal assembly 20 and the machine part 18thereby providing sealing force thereon. As shown in FIG.

This axial motion of the support element also acts to force the nesting seal elements together, thereby maintaining a tight pressure seal. This feature of the instant invention allows the upstream seal element 30 the element located on the high-pressure side of a pressurized system to be forced against the nesting downstream seal element 30 thereby inhibiting fluid flow therebetween.

This seal assembly has excellent resistance to drift, but the PTFE sealing element cannot bridge small ports and is subject to damage from contaminants in the fluid system. A yet further object of the instant invention is a seal assembly that is not subject to chipping or cutting upon installation. Search Expert Search Quick Search. Furthermore, the support element 50 biases the annular seal elements 30 opposite the radially extending wall 14forcing the oppositely sloped surfaces 34 into close proximity.


In an alternative embodiment of the instant invention as shown in FIGS. The seal elements 30 are arranged in an inverted nesting relationship to provide superior sealing characteristics when biased toward the machine part 18 by said support element This feature of the invention allows the support element 50 to expand in volume in the circumferential groove 12 while preventing the seal assembly 20 from over-filling the groove 12thereby causing seal damage or possibly failure.

As best seen in FIG. Additionally, this feature of the instant invention allows the nested annular seal elements 30 to shift against the downstream axial wall 16 of the circumferential groove 12 when system pressure shifts from one side of the seal assembly 20 to the other, prior to the support element 50 shifting to the downstream axial wall Since the axial width of the support element is less than that of the seal elements, upon a change in pressure from one side of the seal assembly to another, the seal elements will be forced to the downstream axial wall of the seal gland in advance of the support element, thereby preventing the more resilient support element from extruding out of the seal gland.

This location is in the Poplar Grove neighborhood. The glide ring piston seal is also difficult to install in a seal gland and is subject to cutting and chipping upon installation. The glide ring piston seal also has a PTFE dynamic sealing element employed in conjunction with an elastomer o-ring to provide radial sealing force. In a preferred constructed embodiment of the instant invention the axial dimension width of the support element 50 is nominally less than the combined axial dimension of the nested annular seal elements Ratings, reviews, hours, phone number and directions from Accordingly, the pair of oppositely sloped surfaces 34 of each annular seal element 30 in this embodiment of the instant invention is disposed radially between the male key portion 36 of the complementary nesting seal element 30 and the annular support element High pressure fluid seal.

SKF acquires remainder of Macrotech Polyseal

View map and ratings for Macrotech Polyseal, Inc. Next Patent Seal for integral po The support element is disposed in the circumferential groove 12 between the radially extending wall 14 thereof and the nesting seal elements However, the aforementioned conventional seal assemblies suffer from several disadvantages.


The soft sealing element, while providing excellent non-dynamic sealing properties very little driftnonetheless is subject to wear and proves unable to bridge small ports because of its tendency to extrude into a port when under pressure. Acronym Finder has 90 verified definitions for MPI. The annular support element 50 is preferably comprised of a resilient, flexible, elastic material such as polyurethane or any of various elastomeric compounds suitable for use in sealing environments, as well known to one of ordinary skill in the art.

Hydraulic fluid sealing applications often require robust double-acting seal assemblies for pistons or rods, or any axially displaceable machine part moveable through an annular passage in a complementary part. The annular seal elements each have an axial slot therein, bounded by a pair of beveled end surfaces tapered from the exterior radius thereof to the interior radius thereof that prevent extrusion of the resilient support element into the axial slot. Ratings, reviews, hours, phone number and directions from ChamberofCommerce.

View Macrotech Polyseal Inc company location, revenue, industry and description. Macrotech Polyseal Inc Products: The seal assembly is comprised of pair of identical annular seal elements arranged in an inverted nesting relationship disposed within the groove in proximity to the displaceable machine part to be sealed.

This radial force prevents both leakage and extrusion of the support element into the small space where each slot and it’s complementary key portion engage.

The key portion of the annular seal elements has an axial dimension slightly smaller than the axial dimension of the complementary axial slot in the opposing element.

Each seal element 30 is further provided with a flat axial surface 42 extending around the circumference thereof that is forced into close proximity with the corresponding axial surface 42 of the complementary element 30 to provide a tight seal.

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