The internal surface area and flooded evaporator efficiency gives the AUTO-PURGER two to three times the foul gas condensing capacity of an Armstrong Purger and 10 times the capacity of purgerswith small electric hermetic compressors.ln a system with normal noncondensible loads,all models will handle a 750 ton (2600kw) ammonia plant at suction pressures below atmospheric pressurr or a 1500 ton (5300kw) ammonia plant at positive suction pressures.Theamount of noncondensibles in the system is based on many factors including age, maintenance practices,and operating temperature.