Universal mechanical seal gland
Universal mechanical seal gland formed of plastic has a central aperture positionable over a shaft extending from a hoemployingfor positioning a stationary seal against a rotary seal at the shaft. The central aperture is shaped of a plurality of cylindrical and radial surfaces which define sealing surfaces permitting the gland for use with a number of variously sized and shaped seal members and housings and differently sized shafts.
all types of devices this type ofs pumps Tiffany Heart Pendants, compressors and so on employ rotary shafts supported for rotation in a hoemployingby which pressurized liquid engages the shaft at the internal of the hoemployingand have a tendencys to leak outwardly along the shaft tothe outside of the housing. Such leakage is plainly undesirable for a number of reasons this type ofs environmental contamination where the liquid is a dangerouschemical, cost of the lost liquid, cleanup costs and upstaycosts and the shortage of energydue to such leakage. a popularand famousexpedient for reducing leakage around a shaft is that of professionalviding a stuffing box surrounding the shaft with packed stuffing material being held in touch with the shaft.
Improvements over thestuffing box concept have included rotary mechanical seals which basically include an annular rotary seal member fixed to the shaft for rotatiat therewith and having a radial surface engageable with a radial surface of a hard and rapidannular seal member heldin position against the rotary seal by a gland member machined to offer the required geometry tospacing for effecting a satisfactory contact between the contacting radial surfaces of the rotary annular seal member and the fixed annular seal member.
the existing universal gland member inventionavoids the will for employingsuch specially designed seal members Tiffany Necklace, eliminates the will for adapter rings and in addition permits the U.S.age of the universal gland member with all types of mechanical seal constructions and diffehireshaft sizes.
Therefore Tiffany Bracelet, this is a prime object of the curhireinventidirectly to offer a brand new and that improved mechanical seal gland.The extraobject of the curhireinvention is the sourceof a brand new and that improved mechanical seal gland able to usage with all types of mechanical seal constructions, diffehireshaft sizes and diffehiregland bolting configurations.
Achievement of the foregoing objects is authorized by the most well liked embodiment of the curhireinvention during the sourceof a mechanical seal gland comprising a polypropylene body having an axially extending aperture extending betweenparallel front and rear planar surfaces with the axially extending aperture being defined by a plurality of cylindrical surfaces attachedby radial surfaces with the cylindrical surfaces being of diversediameters.
The smallest diameter cylindricalsurface is centrally positioned midway between front and rear surfaces of the polypropylene block with adjacent cylindrical surfaces respectively being provided between the smaller diameter surface and front and rear surfaces. The cylindricalsurfaces at the side in their adjacent radial surfaces define step annular seal engaging surfaces which engage an annular stationary seal member formed of ceramic material or the like for containing the oceanl member in touch with a shaft-mountedrotary seal part of a mechanical seal combination. The plurality of this type ofnnular surfaces at the gland permitits usage with all types of fixed stationary seal members as occur with diffehiresizes of shafts with the one limitation being thatthe diameter of the shaft need to be not up to the diameter of the centrally positioned smallest diameter cylindrical surface of the gland.
The gland member is supplied with a plurality of concentric circles formed in its front surface for professionalviding a guide for allowing mounting apertures to be bored at desired radial distances from the middle of the gland for allowing connectionof the gland to tapped openings in a expresspump or compressor housing. Additionally Tiffany Charms, the gland body can also be supplied with inwardly extending bolt-receiving smasseswhich extresult inwardly from the cylindrical periphery of the gland or it may be providedwith pre-bored mounting bolt receiving holes if desired. Another variation of the gland resides within the provision of chordal surfaces forming an element of the outer periphery of the gland so that you can permit it to be fitted onto housings having spacelimitations which won't accommodate a gland having a cylindrical outer periphery of the similar diameter because the diameter of the cylindrical portions of the gland.
a greater understanding of the progressionand usage of the most well liked embodiments of the curhiremechanical seal invention shall be achieved when the next detailed description is thought of as at the side of the appended drawings by which like referencenumerals are used for a similar portionswithin the diffehireviews.
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