Engine & Equipment Maintenance

Reliability-critical products for the equipment you depend on

Crankcase protection, expansion joints, silencers, heat exchangers, indicator valves, insulation, centrifugal oil cleaning, and industrial heating. OEM-engineered, field-proven. Represented and supported locally by Sample Brothers.

Hoerbiger Penn-Troy Kiene Hyspan API Heat Transfer Spinner II Eaton Miratech

Replacement Cartridges

Direct replacement elements for lube oil, fuel, hydraulic, EHC, and inlet air service across turbines, engines, compressors, and industrial equipment. Stocked and cross-referenced to OEM part numbers for faster replacement and cleaner sourcing.

Hilco
PECO
Jonell
Donaldson
Koch Filter
Lube Oil & Fuel Filtration

Replacement elements for Hilco, PECO, Jonell, and other OEM housings

Micron range, media, and fit are matched to the duty, fluid, and service conditions. OEM part number lookup and direct-fit replacements available.

Hilco — PH, PL, PD, and HP series for GE, Siemens, Mitsubishi, Solar turbines
PECO — FG, FGC, and coalescer/separator elements for fuel gas and lube oil
Jonell — JFG, JOC, and high-flow coalescer cartridges for pipeline and process
Cross-referenced — OEM part number lookup, direct-fit replacements
Assorted Hilco filter element assemblies — cutaway showing pleat geometry and endcap seal
Air Filtration

Gas turbine inlet, compressor intake, and industrial HVAC

Pulse-clean, static, and high-efficiency applications. Common sizes stocked, with specials available on short lead times.

Donaldson — Gas turbine inlet filters, compressor intake, pulse-clean cartridges
Koch Filter — HVAC panel filters, bag filters, and high-efficiency media
Camfil — HEPA and molecular filtration for critical environments
Stocked — Common sizes ready to ship, specials on short lead times
Donaldson gas turbine inlet air filter — cutaway showing pleat media, mesh support, and endcap construction

Hoerbiger / Penn-Troy

Relief valves, explosion doors, and check valves for reciprocating engines and compressors. Designed to vent overpressure, prevent backflow, and protect turbochargers, manifolds, and personnel.

Hoerbiger Penn-Troy
Relief Valves · Explosion Doors · Plate Checks

Bicera, EVT, and Sigma — overpressure and backflow protection

Bicera crankcase relief valves and explosion doors vent ignition events in milliseconds, then reseal. EVT intake and exhaust manifold valves provide flameless venting for misfire and backfire events. Sigma plate check valves prevent exhaust backflow and protect turbochargers.

Bicera 4AB / 4AW / ID / QD — crankcase relief valves and inspection doors, plus rebuild kits
EVO / EVX — reusable flameless crankcase venting with integrated flame arresters (CE, ATEX, IACS, NFPA, UKCA)
EVT series — 4 sizes, 58–346 cm² relief; custom opening pressure per engine
Sigma plate checks — low-mass disc for Cooper, Clark, Caterpillar, Waukesha, Worthington exhaust service
Service & disassembly videos
Hoerbiger 4AB Bicera relief valve Hoerbiger QD quick-disconnect door Hoerbiger EVT intake manifold relief Hoerbiger Sigma plate check valve

Removable insulation jackets

Custom removable insulation jackets for valves, piping, exhaust systems, turbines, and process equipment. Built to maintain thermal efficiency while allowing access for inspection and maintenance.

Custom Fabrication & Installation

Insulation that comes off when you need it to

Field-measured and fabricated to the exact geometry of the equipment they cover. Thermal efficiency maintained while allowing full access for inspections, valve adjustments, and maintenance — no cutting or replacing.

Valves and fittings — gate, globe, check, control, and safety relief valves
Exhaust systems — turbine exhaust ducts, manifolds, silencer connections
Piping and flanges — elbows, tees, reducers, expansion joint covers
Personnel protection — burn prevention on high-temperature surfaces
Noise reduction — acoustic insulation for compressor and engine enclosures
Removable insulation jackets installed on industrial piping

Kiene Diesel Accessories

Indicator valves, pressure monitoring components, and safety check valves for reciprocating engines and compressors. Used where accurate diagnostics and equipment protection matter.

Kiene Diesel Accessories
CV-Series Indicator Valves

Cylinder pressure monitoring and engine safety

Full-opening quarter-turn ball valves for gas compressor cylinder performance analysis. Fast-acting 1/4-turn shutoff with a 3/8" thru hole that minimizes pressure drop for accurate analyzer readings.

Hard chrome ball and stem, filled PTFE seats. Rated to 2,000 PSI and 250°F. Locking handle and sour gas ("N") configurations available — for Cooper, Clark, Caterpillar, Waukesha, Ingersoll-Rand, and Ajax engines.

CV-70 — 1/2 NPT male compressor, 1/2 NPT female transducer connection
CV-72 — 1/2 NPT male compressor, standard indicator connection
CV-73 — 3/4 NPT male compressor, standard indicator connection
CV-72-90 — 90° standard indicator connection for confined applications
Accessories — line indicator valves, valve adapters, T-handle wrenches, Nu-Thred dies, extensions
KN Series — needle type indicator valves for higher-pressure compressor analysis
Kiene CV-Series indicator valve — product overview Kiene CV-Series — dimensions and accessories

Hyspan / American BOA expansion joints

Metal bellows expansion joints, exhaust flex connectors, and vibration-control assemblies for thermal growth, misalignment, and equipment movement in power, pipeline, marine, and process systems.

Hyspan
Expansion Joints & Flexible Connectors

Thermal growth, vibration, and misalignment — solved

Hyspan engineers metal bellows expansion joints and ball joints for the specific pressure, temperature, movement, and cycle life of each application. Used in exhaust systems, steam lines, gas piping, HRSG connections, and anywhere thermal expansion or vibration needs to be absorbed without transferring stress to adjacent piping or equipment.

Single and universal expansion joints — axial, lateral, and angular movement
Exhaust flex connectors — engine and turbine exhaust isolation
Tied expansion joints — pressure thrust restraint for anchored systems
Ball joints — multi-plane movement for complex piping layouts
Vibration-control assemblies — pump, compressor, and engine isolation
Engine exhaust manifolds — modular dual-shell with integrated multi-ply bellows (American BOA)
Hyspan 2500 Series laminated bellows expansion joint

Maxim Silencers / Miratech

Silencers and emission-control solutions for reciprocating engines, gas turbines, and process equipment. Intake, exhaust, vent, blowdown, catalytic, and heat recovery applications.

Miratech
Engine & Turbine Silencers

Noise control engineered for continuous duty

Application-specific units sized for engine model, exhaust flow, temperature, and required noise reduction. Miratech catalytic silencers combine attenuation with emissions reduction in a single unit — reducing footprint and simplifying permitting.

Exhaust silencers — reactive and absorptive designs for engine and turbine exhaust
Vent and blowdown silencers — gas pipeline and compressor station applications
Intake silencers — combustion air noise reduction for engines and turbines
Catalytic silencers — combined noise and emission control (CO, NOx, VOC)
Heat recovery silencers — exhaust energy capture with noise attenuation
Spark arrestors — Class I, II, and III for fire-risk environments
Maxim industrial silencer installation

API Heat Transfer

Shell-and-tube, plate-and-frame, and air-cooled heat exchangers, along with replacement bundles and repair support for power, pipeline, process, and marine service.

API Heat Transfer
Heat Exchangers & Services

Thermal transfer for demanding service conditions

Manufactured under Basco, Whitlock, TTP-Thermal Transfer, Schmidt, and Ketema lines. Coverage spans lube oil cooling, jacket water, intercoolers, aftercoolers, and process heat recovery. Retubing and repair services keep existing units in service — plus engineering support for rerates, material upgrades, and performance analysis.

Shell-and-tube — lube oil coolers, jacket water, intercoolers, aftercoolers
Plate-and-frame — compact designs for tight spaces and high efficiency
Air-cooled condensers — fin-fan coolers for remote and unmanned sites
Replacement bundles — drop-in tube bundles for existing shells
Repair and retube — extend unit life without full replacement
API Heat Transfer shell-and-tube heat exchanger API Heat Transfer plate heat exchanger

Centrifugal oil cleaning

Centrifugal oil cleaning systems that remove fine contaminants, water, and sludge on a continuous basis. Used to extend oil life, reduce wear, and lower maintenance costs on engines and rotating equipment.

Spinner II & IOW Group

Continuous oil conditioning without consumable media

Kidney-loop centrifuges operate alongside primary filtration, separating particles, carbon, water, and acids that conventional filters can't remove. No replacement elements — the bowl is cleaned during scheduled PM.

Sub-micron removal — captures particles below 1 micron that standard filters pass
Water separation — removes free and emulsified water from lube oil
No consumable media — centrifuge bowl cleaned and reinstalled during PM
Engine and compressor applications — Cooper, Clark, CAT, Waukesha, IR
Extended oil life — measurable reduction in oil consumption and disposal
Centrifugal oil cleaning system

Indeeco

Circulation heaters, immersion heaters, heat trace, and unit heaters for demanding and hazardous applications. Used for fuel gas, lube oil, process fluids, freeze protection, and enclosure heat.

Heaters & Thermal Solutions

Function-critical heating for demanding environments

Explosion-proof, corrosion-resistant, and high-temperature options are standard — not special order. Applied to fuel gas conditioning, pipeline heating, lube oil pre-heating, process fluid heating, freeze protection, and building heat across compressor stations, power plants, and industrial facilities.

Circulation heaters — inline heating for fuel gas, oil, water, and process fluids
Immersion heaters — direct-immersion heating for tanks, vessels, and sumps
Electric heat trace — freeze protection and temperature maintenance for piping
Unit heaters — space heating for buildings, enclosures, and shelters
Hazardous area ratings — Class I, Division 1 and 2 configurations available
Indeeco industrial circulation heater

What changes when you work with us

"We help confirm the right part, fit, and application before anything ships."

When details matter, we coordinate directly with the manufacturer, reduce handoffs across categories, and stay engaged through delivery and follow-through.

Sample Brothers headquarters — Valley Park, MO

Right part, fit, and application

We confirm equipment, operating conditions, and maintenance requirements before recommending anything. If the current setup is working, we'll tell you that.

Direct manufacturer coordination

Non-standard dimensions, unusual operating conditions, material questions — straight to the factory engineering team. No intermediary layers.

One source, multiple categories

Filtration, expansion joints, silencers, heat exchangers, valves, insulation, and heating under one roof. Fewer vendors, fewer handoffs.

Follow-through after delivery

We confirm fitment, check performance against expectations, and stay available. If something doesn't perform as specified, we own that conversation.

Manufacturers we represent

Direct factory support, application engineering, and local inventory.

Have a specific engine or equipment application?

Tell us what you're running, what's not performing, and when your next maintenance window is. We'll confirm whether we can help — or point you in the right direction.

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