Altec AIR’s HHP Series High Pressure Heatless Desiccant Air Dryers are specially designed for higher pressure applications. They are available in three specific designs rated for maximum working pressures of 250, 500, and 1000 PSIG. ISO 8573.1 Class 2 -40°F/C Standard Outlet Dewpoint Factory installed Filters w/ Differential Pressure Gauges and Pre-Filter Timer Drain Separate Re-Pressurization Circuit (HHP-0100 & Larger) Feature Rich ETL Listed Pro-Logic Controller w/ NEMA 4 Enclosure Regulated Control Air & Adjustable Purge FILES & LITERATURE: Specification Sheet Large Capacity Desiccant Air Dryers Brochure Industrial Products Brochure STANDARD FEATURES: Power Requirements - 120 VAC, 1 Phase, 60 Hz Maximum Pressure - 250 PSIG (HHP-0250-0025 - HHP-0250-1000) 500 PSIG (HHP-0500-0050 - HHP-0500-1400) 1000 PSIG (HHP-1000-0075 - HHP-1000-1800) Maximum Operating Temperature - 120°F / 49°C ASME / CRN Approved Safety Relief Valves OPTIONAL FEATURES: EcoTronic Dew Point Demand Control Bypass Packages