HEATKEYS

Provides bandpass, sealed and vented subwoofer box design software and science, math and engineering programs and freeware

An informational website focused on helping growers learn about water management in Washington, Idaho and Oregon.

Learn about pumps and pump systems, do calculations and trouble-shoot pump problems, participate in a forum, use free software.

YouTube is a place to discover, watch, upload and share videos.

Find the software you

Tools and Basic Information for Design, Engineering and Construction of Technical Applications

Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

Engineering Page provides free online calculation and information services for engineers: pressure drop, line sizing, pumps, thermal rating, ...

Learn about pumps and pump systems, do calculations and trouble-shoot pump problems, participate in a forum, use free software.

Hydroxpert water and environmental technology. Offers technology development and consulting services. Try SIMAHPP for hydropower projects, VINMOD for groundwater problems, EDigitizer for digitizing maps.

VENT SILENCERS , GAS VENT SILENCERS, BLOWDOWN SILENCERS, BLOWOFF SILENCERS. MULTI-STAGE ORIFICES FOR VALVE CAVITATION, PUMP RECIRCULATION. RESTRICTION ORIFICES FOR TURBINE WATER INDUCTION. FLOW LIMITING ORIFICES. ORIFICE STEAM TRAPS