Profile: ACFM Inc. specializes in air and gas handling systems in both pressure & vacuum applications. Our products are used in a wide variety of industries including material handling, waste water treatment, process vacuum, chemical & petrochemical, vapor recovery, and volatile organic compounds along with several others. RAM standard blowers feature a piston ring system between the compression chamber and vent cavities. This models? vent cavities are plugged for purge or drain. Special long-life mechanical seals with Viton? O-rings are installed at each bearing to control gas and oil leakage. The seal incorporates a proprietary geometry that promotes enhanced cooling and extended life. RAM gas units are suitable for both vacuum or pressure service. Alternate materials and optional O-ring material are available for these machines.