Welch BTpro70

⚠️ This item ships separately directly from our supplier partner and will arrive independently from other items in your order. Welch BTpro70 Welch’s BTpro vacuum pump series has a flow and vacuum level to provide fast performance for your size of rotary evaporator, glass reactor, purge oven, or winterization filtration apparatus. These chemical duty PTFE diaphragm pumps are oil-free. The pumping action and deep vacuum comes from the movement of PTFE diaphragms within PTFE heads. All wetted services in the flow path are made of fluoroplastic making the BTpro pump highly chemically resistant. As a result, the BTpro vacuum pump series is near-zero maintenance. A cold trap placed in-line with BTpro pump is needed if terpenes are part of the flow path. The BTpro40 and BTpro70 models employ patented valve and diaphragm technology that generates a deep 15 Torr vacuum pressure with each PTFE head. In addition, both pump models have built-in tuneable vacuum to control evaporation rate. The tunable vacuum adjustment can also be used to stop accidental bumping/foaming. Model BTpro70 Free Air Displacement@60Hz, lpm(CFM) 70(2.5) Ultimate Vacuum Pressure, Torr 15 Maximum Vacuum, in. Hg 29.3 Horsepower, HP (watts) 1/5(150) Built-in adjustable vacuum Yes Gas Ballast - Head Material PTFE Diaphragm PTFE Inlet/outlet Connection 3/8” barb Agency (National Recognized Lab) CSA Weight, lbs (kg) 21.3(9.6) Overall Dimensions LxWxH in.(cm) 13.8x6.8x8.8 35x17x22 Shipping Weight, lbs(kg) 25 (11.3) Shipping Carton Dimensions LxWxH in.(cm) 21x14x15 (52x35x37)