Vacuum Catalogue - Edwards

HT20B Diffusion pumpThe HT high throughput series is the pinnacle of our diffusion pump knowledge withtechnology aimed specifically at industrial users.3Page124Features & BenefitsEdwards HT20B (ANSI20/ISO630 inlet) diffusion pump is designed for all light and heavyduty industrial applications. The robust construction gives high pumping speed at highpressure. The cast and machined aluminium interior provides consistent performance, whilethe stainless steel body prevents corrosion and ensures process cleanliness. These pumpsare designed to give a high throughput (pressure multiplied by pumping speed) at 4 × 10 -3mbar making them ideal for industrial processes that involve large quantities of gases.Applications●●●●●Highest throughput of comparative sized pumpsEarliest crossover pressure of similar sized pumpsExcellent maximum backing line pressure and tolerance to gassurgesComparative pumping speed to similar sized pumpsIntegral cold cap for best performance and low backstreamingDimensions●●●●Vacuum metallurgyDistillation, drying and degassingThin film coating and metallizingLarge-scale researchPerformance CurvesA. Electrical supply connectorB. Water inlet connectorC. Water outlet connector1. Comparative pumping speeds from back to back testing2. ISO pumping speed obtained using total pressure gauges3. ISO throughput obtained using total pressure gaugesShop online at www.edwardsvacuum.com