Technical Insights
Selection guides · Technical sharing · Industry insights
Cv vs Kv: Understanding Valve Flow Coefficients
Cv and Kv both measure valve capacity in different units, and Kv is about 0.865 times Cv. Size from flow and allowable pressure drop, never from line size.
Gear Pump vs Centrifugal Pump: Which Fits Your Application?
Gear pumps suit thick liquid, high pressure and metering; centrifugal pumps suit high flow at low head. Viscosity decides which family you need.
O-Ring Material Selection: NBR vs FKM vs EPDM vs PTFE
Choose an O-ring by medium, then by temperature, pressure and motion: NBR for mineral oil, FKM for heat and chemicals, EPDM for water, PTFE for extremes.
How to Verify Genuine vs Counterfeit Industrial Connectors
Five checks settle most counterfeit connector cases before power up: catalogue lookup, commercial data, housing marking, contact plating and documents.
European Parts to Asia: How Long Is the Real Lead Time?
Quoted lead time is not the real lead time. Break down stock, factory order, freight and customs time for European parts to Asia, and how to compress it.
Electric vs Pneumatic Valve Actuator: How to Choose?
Electric or pneumatic valve actuator? Compare torque, control precision, explosion-proof rating, air supply and total cost, plus a decision tree.
RAFI Keypads and Control Panels: IP65 vs IP67 vs IP69K
IP65, IP67 and IP69K are three separate tests, not a ladder. Match RAFI keypad and panel ratings to your cleaning regime and mounting depth.
Circutor Power Quality Analyzer: Which Class Do You Need?
Fix the measurement goal first, then pick the analyzer class it requires. IEC 61000-4-30 Class A and Class S compared, with Circutor families.
How to Validate MadgeTech Cold Chain Loggers for GDP Audits
Run a GDP cold chain validation with MadgeTech loggers: mapping duration, sensor placement rules, IQ/OQ/PQ, and the report an auditor will ask for.
How to Calibrate and Validate S+S Humidity Transmitters
Set a defensible recalibration interval, verify S+S humidity transmitters on site against a calibrated reference, and pick the right model for cold rooms.
How to Size a Durgo Pressure Relief Valve: 3 Steps
Set pressure from the protected component, capacity from the largest flow the source can deliver, and size from Durgo's blow-off capacity table.
How Many Channels? Ahlborn Data Logger Buying Guide
Four checks decide the Ahlborn ALMEMO data logger you need: sockets versus channels, sampling rate in mops, D6 or D7 probe generation, WinControl tier.