DuoSeal 1399, Belt-Drive Vacuum Pump, 750 RPM, WELCH (CAT#: STEM-DS-1737-LC)

DuoSeal Vacuum Pumps manufactured by Welch are world-renowned for their ruggedness. These pumps have large oil storage tanks for dilution of contaminants. Low rpm can reduce friction and wear, and at the same time minimize the tank temperature to suppress chemical reactivity. Pumps with optional exhaust filters can be ordered for the control of oil mist.

Type: Belt-Drive Vacuum Pump
Free Air Displacement cfm (l/min.) @60Hz: 1.2(35)
Ultimate Pressure: 1.5 x 10-2(0.019)
Pump RPM: 750
Oil Capacity: 0.5(0.47)
Motor Horsepower (watts): 1/3(250)
Adjustable Vac. / Gas Ballast: No
Tubing Needed: 7/16(11)
Intake Thread NPT: 3/4-20 straight thread
Exhaust Thread NPT: 3/4-20 straight thread
Overall Dimensions LxWxH in. (cm): 17x9x10 (43.x22.9x25.42)
Ship Weight: 62(28.2)
Shipping Carton Dimensions LxWxH in. (cm): 20.5x13.8x14.5 (52.1x35.1x36.8)

High contamination tolerance
Ultimate vacuum is less than 0.001 Torr
Low RPM extends service life

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