Air cocks are rated for service to 100 PSI at moderate temperatures. Not recommended for steam. Individually tested for higher pressures if needed.
Essex Brass air cocks and shut off cocks by Flywheel Supply are spring-key type cocks of all brass construction with stainless steel springs.
Machine finish is standard on all air cocks, with polished or plated finish available at extra cost.
*These sizes have hex shoulders, other sizes are as illustrated.
Worked perfect for my application, thank you for having all the hard to find pieces for an antique engine rebuild!