Ring Pliers Set

Ring Pliers Set

Mechanical seal incorporating a pusher ring for safe

An improved mechanical seal incorporating a pusher ring to hold the integral parts of the seal together, in lieu of a typical retaining ring and snap ring aligning and compressing the gland plate. The improvement consists of a pusher ring, fixedly attached to the seal body gland face with cap screws, which retains the gland plate, allowing for easy and safe repair and assembling.

A mechanical seal provides a hydraulic seal between a rotatable element, typically, a shaft and a stationary housing of the apparatus. Such seals are associated with a fluid pump having a shaft extending through a pump housing wall, handling fluids of varying viscosity. The lower the viscosity of the fluid being handled, the tighter the seal required within the pump design.

Although these seals are most commonly employed on pump equipment, other fluid handling equipment also utilize mechanical seals. So, although the present invention is addressed in terms of pump applications, the invention is not restricted therein, but may be employed on all such equipment having mechanical seals.

The pump shaft is typically coupled to a motor through a motor shaft. The mechanical seal forms a seal between the pump shaft and the outer surface of the pump housing. Mechanical seals for such applications are commercially available and have been available for more than 25 years.

Seals, Generally

Seals, in their most common and most basic form, are known in the art and comprise rotatable components and stationary components which contact to form a seal at opposing sealing surfaces. The rotatable components include a shaft attachment means. Such a means is typically a sleeve having an inner perimeter surface which sealingly fits over the outer perimeter surface of the shaft and is connected to the shaft, by connecting means such as set screws. An "O" ring typically provides a seal between the shaft and the sleeve. There is a rotatable circumferential seal element interconnected to the sleeve so as to rotate when the shaft and sleeve rotate. The sleeve extends axially along the shaft.

The stationary components comprise a gland which extends circumferentially around the shaft. The gland abuts against the outer housing surface around the shaft. There is typically a sealing gasket interconnected to the gland and located between the gland and the housing. The gland functions as a base by which the seal is attached to the housing. The connection is typically accomplished by bolts extending from the outer housing wall. The bolts pass through slots or connecting extensions extending radially from the gland through the connecting slots or connecting extensions and secured with nuts. A stationary seal element is located between the inner circumferential surface of the gland facing the shaft (i.e. the gland inner surface) and the shaft. The stationary seal is directly or indirectly connected to the stationary gland. There are suitable means such as described in U.S. Pat. Nos. 4,832,351 and 4,989,882 to axially center the various stationary elements on the shaft. A circumferential spacing is maintained between the stationary elements, and the shaft and various of the rotating elements.

Mechanical Seals, Specifically

The mechanical seal also comprises rotatable components and stationary components. The rotatable components are interconnected to the shaft and rotate with the shaft. The stationary components are interconnected to the housing and do not rotate. The rotatable components and stationary components are positioned relative to each other so that a rotatable seal surface sealingly engages a stationary seal surface. Such a mechanical seal is particularly useful to form seals on machines which have rotatable shafts extending therefrom and fluid inside such as fluid pumps, i.e., water pumps, which have close tolerances, particularly in applications requiring the handling of caustic chemicals or flammable liquids. They are also widely used in nuclear reactor cooling systems to contain radioactive liquids. Typical mechanical seals are designed for leakage of less than one one-thousandth of one percent of the volume of the liquid pumped, per unit time.

The prior art mechanical seals date back to the early 1980's. They have existed for many years, as relative to this art. There has existed, however, safety concerns over a number of the seals because they generally employ snap rings on the seal which, while being installed or removed, can become projectiles which pose a threat to the mechanics.

Original designs used a heavy duty snap ring just inside the gland to hold the integral parts of the seal together. This snap ring was rated at upwards of 80,000 ft. lbs. of axial thrust load. This is more axial thrust load than any pump would ever experience with these seals, and was extreme for a snap ring as applied to these seals. Therefore, when the snap ring was removed, special pliers had to be employed, and risk of severe injury was possible because of the loaded spring causing the threat of projectiles.

Mechanical seals known in the art have at least one "O" ring associated with the sealing element being acted on, and in most instances, acted on by the spring. The spring forces this element toward the opposing element to form a seal. The "O" ring must form a seal not withstanding the axial movement and is known as a "dynamic-O" ring. Additionally, the dynamic "O" ring is located in an "O" ring slot which can clog. The spring must, therefore, provide force to cause the sealing elements to come together under sufficient pressure to form a seal while overcoming the resistance of the dynamic-O ring.

It would be desirable to eliminate the metal spring installed in concert with the dynamic "O" ring, and that is the present sense of the invention disclosed and claimed herein. The present invention retains all the favorable characteristics of the "O" ring, but without the disadvantages of snap ring and retaining rings, the mechanisms which create the dangerous tendency of the spring mechanisms in current art.

Additionally, the means to connect the mechanical seal to the housing is integrated into the structure of the stationary components. The mechanical seal is often set in place and removed in the small space between the pump and motor. The means to attach the seal takes up space and make access to the mechanical seal difficult for both installation and removal. A design with easier access to the seal elements at the location where the shaft extends from the housing is desirable, also an attribute of the present invention.

About the Author

Ningbo Yinzhou Guowei, mechanical seal Component Factory is a professional engaged in the design, development, manufacture, sale of various cartridge seal and flygt seals business. Production and testing are well-equipped with a high-quality staff.

Snap-Ring Pliers (4-Piece Set) $6.3 Snap-Ring Pliers (4-Piece Set)

Proto® - Retaining Ring Pliers Sets $51.4 Durable retaining ring pliers set. Proto® - 18pc. Retaining Ring Pliers Set Set with external ring range of 1/4" to 2" Set also with Internal range of 3/8" to 2" Set pliers and cutters made with alloy steel Comes in a plastic case

Lisle Interchangeable Points Snap Ring Pliers Set. Each $7.06 Manufacturer: Lisle. Each. 46250 Snap Ring Pliers Interchangeable Points Set Customers also search for: Discount Interchangeable Points Snap Ring Pliers Set, Buy Interchangeable Points Snap Ring Pliers Set, Wholesale Interchangeable Points Snap Ring Plier

6 Piece Utility Grade Convertible Retaining Ring Pliers Set $109.95 6 piece set is made in the U.S.A. These quality retaining ring pliers are convertible from internal rings to external rings. This means you only need one pliers per tip size and angle. Utility grade pliers are intended for general repair work. Set Contents: .038'', .047'', .070'' Straight 0 degree Tip Pliers; .038'', .047'', .070'' 90 degree Tip Pliers Packaged in a plastic case.By SK Hand Tool.

Alltrade Tools 835128 4 Pc Snap Ring Pliers Set $21.89 Includes straight tip and curved tip pliers. Pliers adjust for inside or outside pull. Carbon steel with black finish. Noslip vinyl grip. 4 Pc Snap Ring Pliers Set. Finish Color Black. Materials Carbon Steel.

K Tool International 5 Piece Reversible Snap Ring Pliers Set. Each $20.75 Manufacturer: K Tool International. Each. 55001 Snap Ring Pliers Set Reversible 5 Piece Customers also search for: Discount 5 Piece Reversible Snap Ring Pliers Set, Buy 5 Piece Reversible Snap Ring Pliers Set, Wholesale 5 Piece Reversible Snap Ring Pliers

OTC OTC4512 8 Pc Snap Ring Pliers Set Internal/External $105.77 For internal or external snap rings; thumbscrew permits quick conversion. Made of heavygauge tempered steel. Also includes two stainless steel handled picks. Contained in a blowmolded plastic storage case. Contents of Set: No. 45121 .090 tip straight pliers No. 45122 .090 tip 90 degree pliers No. 45123 .070 tip straight pliers No. 45124 .070 tip 90 degree pliers No. 45125 .047 tip straight pliers No. 45126 .047 tip 90 degree pliers No. 45127 .038 tip straight pliers No. 45128 .038 tip 90 degree pliers No. 45129 Straight tip pick No. 451210 90 degree tip pick

12 Piece Utility Grade Convertible Retaining Ring Pliers Set $228.95 12 piece set is made in the U.S.A. These quality retaining ring pliers are convertible from internal rings to external rings. This means you only need one pliers per tip size and angle. Utility grade pliers are intended for general repair work. Set Contents: .038'', .047'', .070'', .090'' Straight 0 degree Tip Pliers; .038'', .047'', .070'', .090'', 45 degree Tip Pliers; .038'', .047'', .070'', .090'' 90 degree Tip Pliers. Packaged in a plastic case.By SK Hand Tool.

OTC 4512 8 Piece Snap Ring Pliers Set Internal/External $77.84 There are a variety of retaining plier sets or individual pliers to choose from but this is one of the most popular sets it includes the following: 45121 .090 tip straight pliers 45122 .090 tip 90 degree pliers 45123 .070 tip straight pliers 45124 .070 tip 90 degree pliers 45125 .047 tip straight pliers 5126 .047 tip 90 degree pliers 45127 .038 tip straight pliers 45128 .038 tip 90 degree pliers 45129 Straight tip pick 451210 90 degree tip pick.

OTC 4512 8 Piece Snap Ring Pliers Set InternalExternal $77.84 There are a variety of retaining plier sets or individual pliers to choose from but this is one of the most popular sets. Includes: .090 inch tip straight pliers .090 inch tip 90 degree pliers .070 inch tip straight pliers .070 inch tip 90 degree pliers .047 inch tip straight pliers .047 inch tip 90 degree pliers .038 inch tip straight pliers .038 inch tip 90 degree pliers Straight tip pick and 90 degree tip pick also

OTC OTC4514 4 Piece Mini Snap Ring Pliers Set $26.78 Features and Benefits: Made of heat treated chrome molybdenum steel Pliers have .038 (1.0mm) diameter tips Overall length: 3 Handle length: 2 Small sized pliers for work in tight areas. Service Sring and Rring clips internal straight or angled. this set includes two internal snap ring pliers (one straight and one 45 degree) and two external snap ring pliers(one straight and one 45 degree).

Channellock Snap Ring Pliers Set, 3 Piece. 1 Set $87 Manufacturer: Channellock. 1 Set. Coiled spring for positive jaw opening Converts from internal to external snap ring plier by a simple finger adjustment of two sliders Spring activated latch Customers also search for: Discount Snap Ring Pliers Set, 3 Pie

KD Hand Tools 3702 2 Piece Hog Ring Pliers Set $48.23 45 Degree hog ring pliers. Straight hog ring pliers. For installation of Hog Ring fasteners. Specially made to grip and mold Hog Rings for closure. Spring loaded to hold hog ring in jaws during use. Cushion grip handle.

Proto® - Convertible Retaining Ring Pliers Sets $349.9 Extremely durable retaining ring pliers sets. Proto® - 12 Pc Convertible Retaining Ring Pliers Set No need to tighten screws on these hand tools. Comes with a return spring that helps reduce hand fatigue. Pliers & cutters with patented plier design. Quick change from internal to external rings easy with patented plier design. Cushion grip for comfortable use and durable steel alloy construction for durability.

Stinger Heavy-Duty Snap Ring Pliers Set $107.95 ? Heat treated steel ?circlip? pliers for large equipment repair. Replaceable tips and spring ratchet locking mechanism to securely hold against snap ring tension. ? Internal plier?s capacity 3-1/16'' to 6-1/4'' (78mm to 159mm) snap rings. ? External plier?s capacity 3-1/2'' to 6-1/2'' (89mm to 165mm) snap rings. ? Blow-molded storage case includes extra sets of replaceable 0.12'' (3mm) dia. tips: straight, 45?, and 90?.By OTC.

4 In 1 Internal External Snap Ring Pliers Set Hand Tool $12.49 Description:Combination Internal External Snap Ring Pliers set includes 4 pieces convertible tips: 2 straight, one 90 degree and one 45 degree.High carbon steel jaws with black industrial finish.Can be used on 10mm to 50mm internal and external snap rings.These 4 In 1 Snap Ring Pliers are provided with heads for both internal and external snap rings.Ergonomic plastic handles provide greater comfort during use.Spring-load provides fast self-opening action.This Hand Tool is an economical pair of snap ring pliers that will get the job done; however, we do not recommend them for heavy use.Dimension (tip not included): ~13.3(L) x 5(W) x 2.5(H)cmWeight: 203gPackage Included:1 x Snap Ring Pliers Set

S K Hand Tools 2 Piece Replaceable Tip Retaining Ring Pliers Set. 1 Set $136.74 Manufacturer: S K Hand Tools. 1 Set. Features Benefits: Packaged in a blow molded case Separate pliers for both internal and external rings from 1-1/2" - 4" Spring actuated, locking pliers decreases user fatigue 2 pliers take the place of 16 pliers Con

OTC 4 Piece Mini Snap Ring Pliers Set. Each $13.56 Manufacturer: OTC. Each. Features Benefits: Made of heat treated chrome molybdenum steel Works on S-ring and R-ring clips Internal or external, straight and angle Customers also search for: Discount 4 Piece Mini Snap Ring Pliers Set, Buy 4 Piece Mini

OTC Heavy Duty Snap Ring Pliers Set. Each $97.72 Manufacturer: OTC. Each. Features and Benefits: Heat treated steel "circlip" pliers for large equipment repair Replaceable tips and spring ratchet locking mechanism to securely hold against snap ring tension Internal pliers' capacity 3-1/16" to 6-1/4" (7

SK Hand Tool SK 7612 12 Piece Utility Grade Convertible Retaining Ring Pliers Set $304.6 12 piece set is made in the U.S.A. These quality retaining ring pliers are convertible from internal rings to external rings. This means you only need one pliers per tip size and angle. Utility grade pliers are intended for general repair work.Set Contents: .038 .047 .070 .090 Straight 0 degree Tip Pliers; .038 .047 .070 .090 45 degree Tip Pliers; .038 .047 .070 .090 90 degree Tip Pliers. Packaged in a plastic case.

6 Pc. Cam-Lock Retaining Ring Pliers Set $131.95 Convert from external to internal in about a second! 1) Compress handles slightly 2) Depress shift button 3) Turn Knob Set Contents: Cam-Lock Retaining Ring Pliers 18 degree, .038'', .047'', .070''; Cam-Lock Retaining Ring Pliers 90 degree, .038'', .047'', .070''. Packaged in a blow molded case.By SK Hand Tool.

Stinger Hose Clamp Pliers Set - 2 Pc. $31.95 ? Includes a cross-slotted jaw pliers and a wide, flat-band hose clamp pliers. Services most ring-type or flat-band hose clamps. ? The clamps are held open with a ratchet locking mechanism. Jaws swivel to access hose clamps in any position.By OTC.

S K Hand Tools SKT7600 Convertible Retaining Ring Pliers Set 6 Pieces $147.4 6 piece set is made in the U.S.A. These quality retaining ring pliers are convertible from internal rings to external rings. This means you only need one pliers per tip size and angle. Utility grade pliers are intended for general repair work. Set include

Proto Set Pliers Retaining Ring. 1 Set $37.37 Manufacturer: Proto. 1 Set. Covers External ring range of 1/4" to 2" and Internal range of 3/8" to 2" Jaw Shape = Straight Handle Includes = External Plier, Internal Plier, (4) .038 in. Tips, 90 Angle, (4) .047 in. Tips, 45 Angle, (4) .047 in. Tips, 0 An

K-D External Snap Ring Pliers Set $18.95 Remove and install internal snap rings 1/4 to 1-7/16'' in diameter.Set includes 5 pairs of interchangeable points in the following sizes:? 0.039'' diameter? 15? angle: 0.048'' diameter? 15? angle: 0.074'' diameter? 15? angle 0.039'' diameter? 45? angle and 0.074'' diameter? 90? angleApplications:? Uses 447 and 448 point sets with these pliers? Use 5/64'' hex key when replacing points? Replacement part: 1445-75 Clamps and Screws

4 in 1 Combination Snap Ring Plier Pliers Set Hand Tools $12.99 Descripiton:It is Brand New, High Quality, Great 4 in 1 Combination Snap Ring Plier Pliers Set Hand Tools ,Hand Tools,Snap on Hand Tools,tools tool pliers tweezerSet comes with 2 180 degree, 1 90 degree, and 1 45 degree jawEffective Range : 3/8" ~ 2" or 10 ~ 50 mmJaws can be changed easily for 6 internal and external purposes (Instruction included)Weight: 204g

S K Hand Tools SKT7612 Convertible Retaining Ring Pliers Set 12 Pieces $319.41 These quality retaining ring pliers are convertible from internal rings to external rings. This means you only need one pliers per tip size and angle. Utility grade pliers are intended for general repair work. Set Contains:. 038 .047 .070 .09

Dib Gs Dib Gs Snap Ring Pliers 378755 $7.28 Snap ring pliers Combination internal/external snap ring pliers Set includes 45, 90, and 180 jaws Effective range 10 to 50 mm Cushion-gripped Brand #: dib Imports 378755 UPC: 009326314655 Keywords: plier snap ring

OTC 2 Piece Hose Clamp Pliers Set. 1 Set $25.06 Manufacturer: OTC. 1 Set. Features and Benefits: Includes a cross slotted jaw pliers and a wide, flat band hose clamp pliers Services most ring-type or flat-band hose clamps Clamps are held open with a ratchet locking mechanism Jaws swivel to access hos

SK Hand Tool SK 7600 6 Piece Utility Grade Convertible Retaining Ring Pliers Set $138.87 6 piece set is made in the U.S.A. These quality retaining ring pliers are convertible from internal rings to external rings. This means you only need one pliers per tip size and angle. Utility grade pliers are intended for general repair work.Set Contents: .038 .047 .070 Straight 0 degree Tip Pliers; .038 .047 .070 90 degree Tip Pliers Packaged in a plastic case.

S K Hand Tools 12 Piece Convertible Retaining Ring Pliers Set. 1 Set $236.19 Manufacturer: S K Hand Tools. 1 Set. Features Benefits: Contains: .038", .047", .070", .090" Straight 0 Degree Tip Pliers: .038", .047", .070", .090" 45 degree Tip Pliers .038", .070", .090" 90 Degree tip Pliers. Packaged in a plastic case Customers al

SK Hand Tools 7612 12 Piece Convertible Snap Ring Pliers Set $304.6 Features Convertible design so you only need one pliers per tip size and angle. Featuring 12 pliers for a variety of uses Packaged in a plastic case Made in the USA Lifetime Warranty Description This 12 piece set is made in the U.S.A. These quality retaining ring pliers are convertible from internal rings to external rings. This means you only need one pliers per tip size and angle. Utility grade pliers are intended for general repair work. The set contains straight 0 degree tip pliers ranging in size from .038 inches to .090 inches.

S K Hand Tools 6 Piece Convertible Retaining Ring Pliers Set. 1 Set $102.11 Manufacturer: S K Hand Tools. 1 Set. Features Benefits: Made in the U.S.A., featuring quality workmanship and value. These quality retaining ring pliers are convertible from internal rings to external rings. This means you only need one pliers per tip

CTA 2 Pc. Heavy-Duty Snap Ring Pliers Set $132.95 Extra-large 16? / 40cm internal and external pliers Includes 6 pairs of tips Range: Internal - 3-1/16 to 6-1/4? / 78 to 159mm External - 3-1/2 to 6-1/2? / 89 to 165mm

K Tool International KTI55001 5 Piece Reversible Snap Ring Pliers Set $35.88 Includes short straight small tip (2 pieces) long straight large tip short 90 degree small tip and long 90 degree large tip. 5 Piece Reversible Snap Ring Pliers Set.