ACHR News Content on Relays, Pneumatic Find manufacturers of Relays, Pneumatic in the HVACR industry of HVAC and refrigeration products.

This file type includes high resolution graphics and schematics when applicable. According to the research firm IHS Inc., about 54 million relays and timers were purchased in 2013, a number projected ...

• Air logic functions like relays, switches, and counters, but uses compressed air instead of electricity. • Air-logic controls are preferred in wet or dusty conditions because they pose little danger ...