Selection guides, comparisons and engineering criteria for industrial buyers — based on public standards (AWS, ASTM, ASME, NTC).
Criteria for choosing pneumatic or electric valve actuators in industrial automation.
Read guide →Válvulas e instrumentaciónPractical differences between full bore and reduced bore ball valves.
Read guide →Válvulas e instrumentaciónGuide to interpreting WOG marking without confusing it with ASME class or steam service.
Read guide →Válvulas e instrumentaciónTechnical criteria for selecting a ball valve for industrial isolation service.
Read guide →Válvulas e instrumentaciónDecision guide for choosing a ball or gate valve for isolation service.
Read guide →
Válvulas e instrumentaciónGuide to compound pressure-vacuum gauges: scales from −30 inHg to positive pressure, when to use one instead of a pressure or vacuum gauge, how to read it and how to size the range per ASME B40.100, EN 837-1/-2 and manufacturer guidance.
Read guide →
Válvulas e instrumentaciónWhat each component of an FRL air preparation unit does, which ISO 8573-1 air class each application demands, and when a two-piece filter-regulator is enough.
Read guide →
Válvulas e instrumentaciónTechnical guide to thermowells: parts and key dimensions, connection and shank types, materials by fluid, and why ASME PTC 19.3 TW-2016 prevents vibration failures.
Read guide →
Válvulas e instrumentaciónSelection guide for industrial pressure gauges: Bourdon and capsule principles, dry versus glycerin-filled, materials by fluid, dial size, NPT connections, ASME B40.100 / EN 837-1 accuracy classes and the range selection rule.
Read guide →
Válvulas e instrumentaciónGuide to the four industrial thermometer types — bimetal, gas-actuated with capillary, glass and Pt100/thermocouple sensors — with ranges, accuracy per standard, comparison table and selection errors.
Read guide →
Válvulas e instrumentaciónPurchasing criteria for specifying gate valves as isolation valves, not throttling valves.
Read guide →
Válvulas e instrumentaciónTechnical check valve selection to prevent reverse flow, water hammer and wrong installation.
Read guide →
Válvulas e instrumentaciónCriteria for buying wafer, lug or flanged butterfly valves by service, size and seat.
Read guide →
Válvulas e instrumentaciónA guide to selecting water meters by technology, flow range, accuracy, installation and maintenance.
Read guide →
Válvulas e instrumentaciónEach valve type solves a different function: quick shutoff, isolation, throttling, non-return or fine control.
Read guide →
Tubería y conducciónDimension tables for the 4-inch sanitary PVC wye, straight and reducing configurations, and the code criterion for choosing between a wye and a sanitary tee.
Read guide →
Tubería y conducciónWhat Class 3000 means for forged steel fittings, how it compares with malleable iron, and when to choose NPT threads or socket weld.
Read guide →
Tubería y conducciónWhat Class 300 means in malleable iron threaded fittings, their ASME B16.3 pressure-temperature ratings and when to choose them over Class 150.
Read guide →
Tubería y conducciónClass 150 black iron is uncoated malleable iron per ASME B16.3: 300 psig cold, 150 psig saturated steam, and the standard material for fuel gas piping.
Read guide →
Tubería y conducciónGuide to gas risers per NTC 2505 and NTC 4534: what the polyethylene-to-metal transition device is, where it is installed, male and female types, 1/2" to 1" sizes, accepted materials, prohibitions and the leak test with pressures and hold times.
Read guide →
Tubería y conducciónDiameter tables, inch equivalents and PP-R wall thickness by PN class, with the criterion for choosing between cold and hot water service.
Read guide →
Tubería y conducciónTechnical guide to pipe unions: function versus the coupling, the three parts, seat types and materials per ASME B16.39 and MSS SP-83, installation rules and the practical threshold versus flanges.
Read guide →
Tubería y conducciónHow to choose between a rubber vibration-absorbing joint and a metal bellows expansion joint, with a thermal growth calculation and EJMA installation rules.
Read guide →
Tubería y conducciónA guide to identifying weld, threaded, long-radius and short-radius elbow dimensions by nominal pipe size.
Read guide →
Tubería y conducciónGuide to deciding when to buy seamless pipe and when welded pipe is sufficient.
Read guide →
Tubería y conducciónA guide to choosing stainless tubing by OD, wall thickness, alloy, pressure and compression fitting.
Read guide →
Tubería y conducciónNPT is a tapered pipe thread that needs controlled sealing and should not be mixed with BSP threads.
Read guide →
Tubería y conducciónA pipe nipple is selected by diameter, length, schedule, material, thread and function in the piping system.
Read guide →
Tubería y conducciónPVC pipe selection starts with service: pressure water, sanitary drainage, stormwater or compatible fittings.
Read guide →
Tubería y conducciónA guide to separate tube, pipe and tubing, and buy the correct item by geometry, standard and service.
Read guide →
Tubería y conducciónPipe schedule is a dimensional designation; allowable pressure depends on material, wall, diameter, temperature and code.
Read guide →
Tubería y conducciónA practical guide for comparing carbon steel, stainless, galvanized, PVC, CPVC and polypropylene pipe.
Read guide →
Químicos y adhesivosA guide to the six fluids that keep diesel machinery alive —C-series oil, coolant, DEF, hydraulic fluid, filtered fuel and chassis grease— with their standards and selection thresholds.
Read guide →
Químicos y adhesivosHow to choose between grease and oil and read ISO VG and NLGI grades, with thickeners, verified specialty lubricants and a selection table by application.
Read guide →
Químicos y adhesivosFluids and parts guide for small gasoline equipment (trimmers, chainsaws, water pumps, generators): SAE 30/10W-30 oil and API categories, 25:1 to 50:1 two-stroke mix with JASO FB/FC/FD oil, the E10 ethanol problem, fuel stabilizer, spark plugs and air filters.
Read guide →
Químicos y adhesivosWhat Loctite 495 is, which materials it bonds and how to apply it with technical criteria based on Henkel's official data sheet.
Read guide →
Químicos y adhesivosWhat Loctite 515 is, how to apply it step by step on rigid metal flanges and when to choose it over a solid gasket or the 5699 RTV silicone.
Read guide →
Químicos y adhesivosTechnical guide to LOCTITE 567: what it is, Henkel TDS specifications, step-by-step application and when to use it versus PTFE tape.
Read guide →
Químicos y adhesivosTechnical guide to Loctite 5699 grey RTV silicone: what it is, how to apply it step by step and when to choose it over the anaerobic 515.
Read guide →
Químicos y adhesivosWhat the Loctite 640 anaerobic retainer is, how to apply it step by step, and when to choose it over an interference fit or a key.
Read guide →
Rodamientos y transmisiónA guide to the four ball bearing types — deep groove, angular contact, self-aligning and thrust — with the differences between the 6000, 6200 and 6300 series and selection criteria by load, speed and misalignment.
Read guide →
Rodamientos y transmisiónA guide to choosing between cylindrical, tapered, needle, spherical and thrust roller bearings based on load, space and misalignment.
Read guide →
Rodamientos y transmisiónA guide to telling yoke-type support rollers and stud-type cam followers apart, reading their designation and selecting by load and mounting.
Read guide →
Rodamientos y transmisiónHow to choose a load pulley for wire rope, fiber rope or track rolling based on groove, D/d ratio, rotation type and mounting.
Read guide →
Rodamientos y transmisiónA guide to translating a bearing reference into type, series, bore, seals, internal clearance and bore form.
Read guide →
Rodamientos y transmisiónA measurement guide to identify a V-belt pulley by diameter, groove, profile, groove count and mounting.
Read guide →
Rodamientos y transmisiónA guide to choosing pillow block, square flange, oval flange, take-up units and inserts by mounting and shaft diameter.
Read guide →
Rodamientos y transmisiónA practical guide to selecting V-belt pulleys by profile, groove count, diameter and mounting type.
Read guide →
Bridas, espárragos y selladoGuide to flange insulation kits: how they stop galvanic corrosion and section cathodic protection, components, E/F/D types, phenolic and G-10 materials, installation and ohmmeter verification.
Read guide →
Bridas, espárragos y selladoA size guide for both PTFE products: thread seal tape (width, density, wraps) and machinable PTFE rod and sheet.
Read guide →
Bridas, espárragos y selladoPractical flange selection for industrial piping by installation, pressure, material and sealing criteria.
Read guide →
Bridas, espárragos y selladoA guide to specifying industrial stud bolts by standard, diameter, thread, length, material and nuts.
Read guide →
Bridas, espárragos y selladoA guide to selecting industrial sealing products by function, fluid, temperature, pressure and assembly.
Read guide →
Bridas, espárragos y selladoA guide to selecting industrial pipe and flange gaskets by standard, material, class and service.
Read guide →
ManguerasGuide to the superflex hose of the Colombian market: transparent PVC construction with braided nylon reinforcement, sizes from 1/4 in to 2 in, working pressures, real uses, and why it must not be confused with corrugated electrical conduit or rubber pressure hose.
Read guide →
ManguerasThe right water hose depends on potable use, irrigation, suction, discharge, pressure, reinforcement and compatibility.
Read guide →
ManguerasCriteria for selecting hoses by fluid, working pressure, burst pressure, temperature and fittings.
Read guide →
Aceros y materialesWhat SAE 8620 case hardening steel is, its verifiable properties, how it is heat treated and when to choose it over 4140 or 1045.
Read guide →
Aceros y materialesWhy steel corrodes, how to recognize the six most common corrosion types in a plant and which prevention strategy fits each environment.
Read guide →
Aceros y materialesTechnical guide to choosing a sacrificial anode by environment and resistivity, with a comparison table and a sizing formula.
Read guide →
Aceros y materialesPractical criteria for deciding when carbon steel, 304, 316 or 430 is the right choice.
Read guide →
Herramientas y mecanizadoHow to choose a milling cutter by operation (facing, shoulder, slotting, profiling), construction (solid carbide or indexable), flute count, coating and cutting parameters with formulas.
Read guide →
Herramientas y mecanizadoHow to read the ISO 1832 designation of an indexable insert and choose shape, geometry and ISO 513 grade based on workpiece material, operation and setup stability.
Read guide →
SoldaduraA technical guide to choosing the process and filler metal for aluminum welding, preparing the joint and avoiding porosity, burn-through and cracking.
Read guide →
SoldaduraA guide to buying and using E11018-M with hydrogen control, WPS discipline and traceability.
Read guide →
SoldaduraA guide to applying E7024 SMAW electrodes for high deposition without treating them as universal electrodes.
Read guide →
SoldaduraA guide to selecting and using 9018 electrodes in low-alloy and demanding welding applications.
Read guide →
SoldaduraA guide to using 40/60 soft solder with technical criteria and clear lead warnings.
Read guide →
SoldaduraConsumable diameter is selected by process, thickness, position, available amperage and manufacturer datasheet.
Read guide →
SoldaduraA technical guide to AWS SMAW electrode nomenclature and practical purchasing decisions.
Read guide →
SoldaduraA direct comparison for choosing between stick electrodes, solid MIG wire and flux-cored wire.
Read guide →
