An Ingersoll-Rand safety check valve is designed for maximum performance and service within the correct CFM rating. The CFM output of a compressor is the controlling factor affecting the proper operation of a safety check valve. Correct performance can be achieved only by a valve made specifically to control the CFM range. No single safety check valve can properly handle all of the variable factors it will meet in normal service. Each safety check valve is provided with a spring to percisely control a limited range of compressor air output volume.

Operating within this range, a safety check valve will react instantly and automatically to hose failure and accidental uncoupling, eliminating dangerous hose whip. Its tamperproof construction is of solid brass with stainless steel springs. When ordering an Ingersoll-Rand safety valve, first determine the CFM rating of the compressor and always consider that the size of the valve must be the same size as the air hose.