No Tools Required for Deaerator Nozzle Inspection! Lock-N-Load® Spray Nozzle by COCHRANE® by newterra. COCHRANE's patented LOCK-N-LOAD spray nozzle is the best available technology for optimum deaeration of boiler feed water. LOCK-N-LOAD combines the best features of the world-renowned COCHRANE Accu-Spray™ nozzle and adds one-hand installationand inspection requiring no special mounting nuts, studs or bolts. Push, twist, LOCK-N-LOAD, it’s that easy! Performance and Innovation. That’s what COCHRANE by newterra’s is all about.