Engineered Sealing & Specialized Components

THE RIGHT MATERIAL.

BUILT TO SPEC.

Standard inventory fails in extreme conditions. When the temperature, pressure, chemical environment, or wear profile puts a catalog product out of range, Kelley Industrial sources and fabricates precision components to the exact specification the application requires — exotic material gaskets, specialty hose assemblies, engineered plastics, and cast polyurethane for high-wear service. No guesswork. No substitutions. The right material for the job.

AT A GLANCE

CAPABILITY

Engineered Fabrication

GASKET MATERIALS

PTFE  · Grafoil  · Spiral Wound  · Etc.

HOSE & TUBING

Chemical  · High-Temp  ·  Process Tsfr.

ENGINEERED PLASTICS

UHMW  · PEEK  · Nylon  · Phenolic

POLYURETHANE

Cast  · Wear-Resistant  · Custom

FABRICATION

TO Drawing  · To Dimension  · To Spec

APPROACH

Application First – no catalog defaults

QUOTE TURNAROUND

Call XXX.XXX.XXXX

PTFE/ EPTFE
FLEXIBILE GRAPHITE
SPIRAL WOUND
UHMW POLYETHYLENE
CAST POLYURETHANE
PEEK
EXOTIC ELASTOMERS 

OUTAGE HELD UP ON A NON-STANDARD GASKET OR WEAR COMPONENT/ WE FABRICATE TO SPEC ON SHORT LEAD TIMES

CAPABILITY OVERVIEW

WHEN THE CATALOG

RUNS OUT OF ANSWERS.

Most industrial sealing and wear problems have catalog solutions. But the applications that create the most downtime risk — extreme temperatures, highly corrosive process fluids, non-standard equipment geometry, high-impact and abrasive wear — regularly exceed the operating envelope of standard stocked products.


Kelley Industrial sources and fabricates precision-engineered components for the applications where standard products don’t survive. That means custom-fabricated gaskets in PTFE, flexible graphite, spiral wound, and composite constructions. It means specialty hose and tubing assemblies matched to the process fluid, pressure, and coupling requirements of the specific line. And it means engineered plastics and cast polyurethane components fabricated to the exact dimensions your equipment requires.


This capability fills a specific gap in our customers’ supply chains. Refineries, chemical plants, and heavy manufacturers regularly encounter applications that general industrial distributors cannot adequately source — exotic materials, non-standard dimensions, or fabrication requirements that fall outside a typical stocking program. We evaluate the application and source the right solution from our fabrication network.
The approach is the same as every other Kelley Industrial capability: start with the failure mode, identify the operating conditions, and select the right material and configuration. No defaults. No substitutions that almost fit.

· HIGH-PERFORMANCE GASKETS – EXOTIC MATERIALS
· PTFE & FLEXIBLE GRAPHITE GASKETS
· SPIRAL WOUND & RING JOINT GASKETS
· SPECIALTY CHEMICAL TRANSFER HOSE
· HIGH-TEMPERATURE PROCESS HOSE ASSEMBLIES
· UHMW, PEEK, NYLON & PHENOLIC COMPONENTS
· CAST POLYURETHANE – WEAR & IMPACT SERVICE
· CUSTOM FABRICATION TO DRAWING OR DIMENSION

3

FABRICTAION CATEGORIES – GASKETS, HOSE, ENGINEERED COMPONENTS

850°F

FLEXIBLE GRAPHITE GASKET SERVICE RANGE – WHERE STANDARD ELASTOMERS FAIL

Full pH

PTFE GASKET CHEMICAL COMPATIBILITY – ACROSS ACIDS, CAUSTICS, SOLVENTS

29 yrs

SOURCING RELATIONSHIP WITH FABRICATORS IN EXOTIC MATERIALS & PRECISSION COMPONENTS
GASKETS – THE RIGHT MATERIAL FOR THE SERVICE

WRONG GASKET MATERIAL

DOES NOT ANNOUNCE ITSELF

UNTIL IT FAILS.

A standard elastomer gasket in high-temperature hydrocarbon service, or a compressed fiber sheet gasket exposed to strong acids, will fail without visible warning until the joint leaks or blows. Gasket selection is not a procurement task. It is a materials engineering decision that has to account for the specific combination of temperature, pressure, process fluid chemistry, and flange surface condition.

01

PTFE & EXPANDED PTFE GASKETS

Pure and expanded PTFE (ePTFE) gaskets offer the broadest chemical compatibility range of any gasket material — resistant to virtually all process chemicals across the full pH range, with service temperatures from cryogenic to 500°F. ePTFE gaskets conform to irregular or damaged flange faces better than rigid materials, making them the correct choice for flanges that cannot be refinished. Available in full-face, raised-face, and ring configurations, fabricated to flange class and dimensional specifications. Kelley Industrial supplies PTFE and ePTFE gaskets cut to the bolt pattern and dimensions of the specific flange — not catalog sizes that require field trimming.

02

FLEXIBLE GRAPHITE (GRAFOIL) GASKETS

Flexible graphite gaskets handle the temperature and chemical conditions that put every polymer-based gasket material outside its operating envelope. Service range extends from cryogenic service to 850°F in oxidizing atmospheres and above 5,000°F in non-oxidizing conditions — with broad chemical compatibility that includes steam, hydrocarbons, and strong acids. Used on high-temperature steam lines, process heater flanges, heat exchanger bonnets, and valve bonnets in refinery and petrochemical service. Available with stainless steel tanged core inserts for elevated pressure classes. Fabricated to the exact flange dimensions and ASME B16.21 bolt-pattern specifications of the application.

03

SPRIAL WOUND GASKETS

Spiral wound gaskets are the standard for ASME flanged connections in refinery and chemical process piping — engineered to maintain sealing integrity across thermal cycling, pressure excursions, and the bolt load relaxation that causes conventional gasket leaks. The spiral winding of a V-shaped metallic strip with a filler material — typically PTFE, flexible graphite, or ceramic — provides resilience under cyclic loading that flat sheet gaskets cannot match. Available in 304 and 316 stainless steel winding with PTFE or graphite filler for process service, and in Inconel and Hastelloy for high-alloy applications. Kelley Industrial supplies spiral wound gaskets to ASME class, nominal pipe size, and material specifications for process piping, pressure vessel, and heat exchanger applications.

04

SPECIALTY ELASTOMERS & COMPONENTS

Not every application requires an exotic metallic or fluoropolymer gasket. Many process conditions call for a specific elastomer — Viton (FKM) for hydrocarbon and chemical resistance, EPDM for steam and water service, Neoprene for refrigerant and mild chemical environments, or Buna-N for oil and fuel service. Composite gaskets combine a metallic core with elastomeric or PTFE facing for elevated pressure classes where a pure elastomer sheet gasket would extrude under bolt load. Kelley Industrial evaluates the flange class, process fluid, and temperature to select the correct elastomer or composite construction — and fabricates to the bolt pattern dimensions of the specific flange. Sheet stock and ring joint configurations available.

Why the same flange keeps leaking after regasketing: Repeat gasket failure on the same joint almost always traces to one of three causes — wrong material for the process fluid, incorrect gasket thickness or compression ratio for the flange surface condition, or a damaged flange face that no flat gasket will seal against. Kelley Industrial evaluates the flange condition, the process conditions, and the failure history before recommending a replacement material. If the flange face is the problem, we identify that before another gasket is installed and lost.

GASKET SELECTION REFERENCE

MATERIAL BY SERVICE CONDITION

Gasket material selection depends on the specific combination of temperature, pressure, process fluid chemistry, and flange condition. This matrix provides a general reference — Kelley Industrial evaluates the full application before confirming a recommendation.

ePTFE

Flexible Graphite

Spiral Wound — PTFE Fill

Spiral Wound — Graphite Fill

Viton (FKM)

EPDM

Buna-N (NBR)

500°F

850°F

500°F

1,000°F

400°F

300°F

250°F

Full pH Range

Broad

Broad Chemical

Broad

Acids / Hydrocarbons

Mild / Water

Oil/ Fuel

Yes

Limited

Yes

High Pressure

No

Low-Pressure

No

Yes

Yes

Yes

Yes

Yes

No

Yes

Broad chemical service/process

High-temp steam, HX bonnets, ref. srv.

ASME process piping, pressure vessels

High temp prcs flanges, refinery piping

Hydrocarbon & chem serv below 400°F

Water, steam, dilute chemical srv

Oil, fuel, and mild hydrocarbon srv

COMPRESSION PACKING PRODUCT LINE

THE RIGHT HOSE

FOR THE FLUID.

NOT THE SHELF

Standard hose fails in chemical transfer, high-temperature process, and steam service because it was engineered for something else. The tube material, reinforcement construction, cover compound, and end coupling all affect service life — and a mismatch on any one of them produces a failure in the worst possible location. Kelley Industrial evaluates the fluid, the pressure, the temperature, and the coupling requirements before recommending a hose assembly.

PTFE-lined hose assemblies for chemical transfer applications where the process fluid attacks standard rubber tube compounds. The PTFE liner provides full pH-range chemical resistance with service temperatures to 450°F. Used for acid transfer, solvent lines, and process fluid transfer on equipment where metallic hard-pipe is impractical. Available with stainless steel braid reinforcement and in a full range of end coupling configurations — cam-lock, flanged, NPT, and sanitary.

Steam hose, hot oil hose, and thermal fluid hose assemblies for process and utility applications where standard rubber compounds fail from heat degradation. Construction varies by service — EPDM tube for steam service, corrugated stainless steel with PTFE liner for high-temperature process fluid transfer, and fabric-wrapped silicon rubber for oven and thermal service. Pressure ratings, temperature ceilings, and coupling configurations evaluated per application. Kelley Industrial specifies the correct construction for the actual operating temperature and fluid — not the general-purpose default.

Heavy-duty suction and discharge hose assemblies for pump connections, tank truck loading, and bulk transfer applications. Wire-reinforced EPDM, Nitrile, and Neoprene constructions for water, petroleum, and general industrial service. Kelley Industrial supplies assemblies with the coupling configuration required for the specific pump connection — camlock, NPT, flanged, or grooved — fabricated and pressure-tested before delivery.

PUMP CONNECTION · BULK TRANSFER · EPDM · NITRILE ·INDUSTRIAL

Corrugated stainless steel hose for applications requiring metal construction — high-temperature service above polymer hose limits, high-pressure process connections, and vibration isolation where rubber hose is outside the thermal or pressure range. Available in 304 and 316 stainless steel with single and double braid reinforcement, and in Inconel for elevated-temperature service. Flanged and threaded end configurations to ASME and custom specifications.

Stainless steel, PTFE, and polymer tubing assemblies for instrument connections, seal flush lines, and utility service where flexibility, chemical resistance, or a specific OD is required. Kelley Industrial fabricates tubing assemblies with compression fittings, flare fittings, or tube-end configurations to the dimensions and connection specifications of the instrument or process connection they serve.

Non-standard hose assemblies for applications where catalog products do not fit the required length, coupling combination, or service conditions. Kelley Industrial coordinates with fabrication partners to build hose assemblies to the specific dimensional and material requirements of the application — from one-off replacements on older equipment to production quantities for repeat service.

Why hose assemblies fail before their expected service life: Premature hose failure almost always traces to tube material incompatibility with the process fluid, end coupling corrosion from mismatched materials, or a temperature rating that does not match the actual operating condition. A rubber hose rated for “chemical service” that is not specifically rated for the actual chemical in the line will swell, blister, or delaminate — often without visible external indication until the assembly fails. Kelley Industrial evaluates the fluid, the operating temperature, and the coupling requirements before specifying an assembly. We do not default to the nearest catalog item.

ENGINEERED PLASTICS & CAST POLYURETHANE

WEAR DOESN’T STOP.

THE WRONG MATERIAL

FAILS FAST.

Impact, abrasion, chemical exposure, and elevated temperature degrade wear components in conveyors, chutes, mixers, pumps, and process equipment faster than most maintenance programs account for. Metal replacements add weight and cost. Standard plastics lack the wear or chemical resistance for the service. Engineered plastics and cast polyurethane close that gap — fabricated to the exact dimensions and tolerance the equipment requires.

01

UHMW POLYETHYLENE – WEAR & IMPACT

Ultra-high-molecular-weight polyethylene is the correct material for high-impact, high-abrasion applications where metal wear parts are cost-prohibitive or add excessive weight. UHMW has 10 times the wear resistance of carbon steel and absorbs impact that would crack or shatter less ductile materials. Used on conveyor wear strips, chute liners, hopper linings, impact bars, and guide rails in coal handling, aggregate, and heavy industrial material handling. Self-lubricating surface reduces friction and eliminates the stick-slip that causes material flow problems in chutes and hoppers. Kelley Industrial supplies UHMW in sheet, rod, and custom-fabricated profiles cut to the dimensions and mounting configuration of the specific equipment location.

02

PEEK – EXTREME TEMPERATURE & CHEMICAL

Polyether ether ketone is the engineering thermoplastic of choice when the service conditions exceed the operating range of every other polymer — continuous service to 480°F, broad chemical resistance including strong acids and organic solvents, and mechanical strength that approaches metal in structural applications. PEEK replaces metal and softer plastics in pump wear rings, bearing bushings, valve seats, and rotating equipment components where the combination of temperature, pressure, and chemical exposure would degrade standard materials within weeks. Kelley Industrial supplies PEEK in machined components to drawing specifications — shaft bushings, wear rings, guide vanes, and custom geometries for rotating and reciprocating equipment in refinery and chemical process service.

03

NYLON & PHENOLIC – STRUCTURAL & BEARING APPLICATION

Nylon (PA6, PA66, and PA6/6 cast grades) provides a cost-effective combination of wear resistance, impact strength, and self-lubrication for machine components, wear pads, bushings, and structural elements in moderate-temperature service. Cast nylon components are dimensionally stable, machineable to close tolerances, and eliminate the lubricant requirement that metallic bushings and wear surfaces impose. Phenolic laminates provide higher compressive strength for gear blanks, bearing pads, and structural components where nylon lacks sufficient stiffness. Kelley Industrial supplies nylon and phenolic components fabricated to drawing dimensions and tolerances for conveyor, mixer, pump, and general process equipment applications.

04

CAST POLYURETHANE – IMPACT, ABRASION & CUSTOM PROFILE

Cast polyurethane combines the resilience of rubber with the wear and load-bearing characteristics of a structural plastic — making it the correct material for applications that metal or standard plastic wear parts cannot survive. Polyurethane absorbs impact and cyclic loading that fractures brittle materials, while providing abrasion resistance that outlasts rubber by 3–5 times in high-wear applications. Used on pump wear plates, impeller liners, screen panels, conveyor rollers, and custom wear liners for chutes and transfer points. Cast polyurethane is produced to the exact profile, hardness (Shore A or Shore D), and dimensional tolerances of the original part or new fabrication. Kelley Industrial supplies cast polyurethane components in Shore 60A to 95A and 40D to 75D hardness ranges — matched to the specific impact and wear profile of the application.

ENGINEERED PLASTICS – MATERIAL SELECTION REFERENCE

RIGHT MATERIAL.

RIGHT APPLICATION.

Each engineered plastic has a specific operating envelope. Kelley Industrial evaluates the application temperature, chemical exposure, load profile, and dimensional requirements before recommending a material. This reference captures the primary use cases — the full application evaluation is always more specific.

Highest wear resistance and impact absorption of any thermoplastic. Self-lubricating. FDA-approved grades available for food service. Service temperature to 180°F. Excellent resistance to dilute acids and alkalies. The default material for conveyor and material handling wear surfaces in coal, aggregate, and bulk material operations.

Continuous service to 480°F. Resists virtually all organic solvents and withstands exposure to strong acids and bases. Near-metallic mechanical strength. Correct for rotating equipment components in refinery and chemical process service where temperature and chemical exposure eliminate softer plastics and eliminate corrosion concerns of metallic alternatives.

Cast nylon offers superior dimensional stability and machinability compared to extruded nylon, with self-lubricating surface that eliminates grease requirements on bushings and wear surfaces. Service to 220°F. Available in oil-filled and MoS₂-filled grades for extended wear life in dry-running applications. Standard for machine components, gear blanks, and structural wear parts across general industrial service

Cotton or glass-fabric reinforced phenolic for applications requiring higher compressive strength than nylon provides. Used in marine bearing pads, heavy-duty gear blanks, and structural components in press and forming equipment. Dimensionally stable under high sustained compressive load. Available in CE cotton fabric and G10 glass fabric grades to NEMA specifications

Custom-cast polyurethane components in Shore 60A through 75D hardness for wear liner, pump wear plate, screen panel, and conveyor roller applications. Impact resistance exceeds rubber; wear resistance exceeds standard elastomers. Produced to exact part geometry — from simple flat wear pads to complex molded profiles. Kelley Industrial coordinates cast-to-spec production from customer drawings or sample parts.

Acetal (Delrin) and polypropylene for chemical-resistant valve components, fittings, and light-duty structural elements in corrosive environments where metal would corrode and higher-performance plastics are cost-prohibitive. Acetal provides stiffness and dimensional stability for precision components. Polypropylene provides broad chemical resistance for fitting and housing applications in acidic and alkaline environments.

APPLICATIONS

WHERE THESE COMPONENTS

DO THEIR WORK

Process piping, pressure vessels, heat exchangers, and heater flanges in refinery service operate at temperature and pressure combinations that put standard gasket materials outside their limits. Flexible graphite, spiral wound, and PTFE gaskets for high-temperature hydrotreater, FCCU, and crude unit flange applications. Kelley Industrial has sourced and supplied engineered gaskets for Midwest refinery customers since 1997 — evaluated for the specific service condition, not pulled from a bin.

Chemical plants handle process fluids that attack standard materials with consistency and speed. PTFE-lined hose for acid transfer, ePTFE gaskets for corrosive flanges, PEEK components for pump impellers and wear rings in aggressive media — the common thread is that the material selection has to match the actual chemistry. Kelley Industrial evaluates the process fluid and operating conditions before specifying any component in chemical process service.

UHMW wear strips, chute liners, and impact bars for coal handling, aggregate, cement, and bulk mineral operations. Cast polyurethane wear liners and rollers for transfer point and crusher applications. The material handling environment produces the highest abrasion and impact loads of any industrial application — and the wear components that operate in it need to be engineered for that load profile, not substituted from a general plastics catalog.

Steam lines, condensate systems, and thermal fluid piping create gasket and hose requirements that standard elastomers and sheet gaskets cannot reliably meet. Flexible graphite and spiral wound graphite-fill gaskets for high-pressure steam flanges. EPDM steam hose assemblies for lower-pressure utility connections. Corrugated SS hose for flexible connections in high-temperature piping where rubber hose is outside its service range.

Equipment rebuild shops and reliability programs regularly encounter worn pump wear rings, impeller bushings, and shaft sleeves that require plastic or polyurethane replacement components. PEEK wear rings for chemical process pumps, cast nylon bushings for mixer and agitator shafts, UHMW guides for reciprocating equipment. Kelley Industrial supplies engineered plastic components to drawing specifications for pump rebuilds — available to rotating equipment service organizations serving Midwest refinery and chemical customers.

FDA-approved UHMW and PTFE components for food contact applications — conveyor wear surfaces, chute liners, mixer paddles, and guide components in food processing equipment. ePTFE gaskets for sanitary flanges and food-grade process connections. PTFE-lined hose for clean-in-place (CIP) transfer lines. Kelley Industrial supplies FDA-grade plastics and gasket materials for food processing customers as part of the same application-evaluated sourcing process applied in industrial service.

DESCRIBE THE APPLICATION

WE EVALUATE THE CONDITIONS

WE SOURCE THE RIGHT MATERIAL

FABRICATED TO SPEC

TALK TO US ABOUT YOUR SEALING PROBLEM.

Chilled water pump bearing failures, cooling tower fan motor problems, seal leaks on coolant circulation pumps, or piping stress issues in distribution loops — the approach is the same one we bring to any critical rotating equipment application. Tell us the equipment and the operating conditions.