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BTpro 70

SKU: 7020-01

Welch Vacuum BTpro 70 Botanical Vacuum Pump (7020-01)

Botanical Vacuum Pump Series

SKU: 7020-01

  • High flow for faster processing
  • Oil free operation for near-zero maintenance
  • Built-in tunable vacuum to prevent accidental bumping or foaming
  • Wetted surfaces are made with fluoroplastics for chemical resistance
  • Wired 115V 60Hz
  • Free air displacement @60Hz: 2.5 cfm (70 L/min)
  • Ultimate pressure: 15 Torr (20 mbar)

$3,657.00

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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 BTpro 40 and BTpro 70 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 tunable vacuum to control evaporation rate. The tunable vacuum adjustment can also be used to stop accidental bumping or foaming.


Compare BTpro Models
Model BTpro 40 BTpro 70 BTpro 100 BTpro 170
Free Air Displacement @60Hz, lpm (CFM) 40 (1.4) 70 (2.5) 100 (3.5) 170 (6.0)
Ultimate Vacuum Pressure, Torr 15 15 6 6
Maximum Vacuum, in. Hg 29.3 29.3 29.7 29.7
Horsepower, HP (watts) 1/5 (150) 1/5 (150) 0.5 (390) 0.6 (440)
Built-in Adjustable Vacuum Yes Yes - -
Gas Ballast - - Yes Yes
Head Material PTFE PTFE PTFE PTFE
Diaphragm PTFE PTFE PTFE PTFE
Inlet/Outlet Connection 3/8" barb 3/8" barb NW16 flange1 NW16 flange1
Agency (National Recognized Lab) CSA CSA cUL cUL
Weight, lbs (kg) 15.0 (6.8) 21.3 (9.6) 40.3 (18.3) 72.3 (32.8)
Overall Dimensions LxWxH, in. (cm) 12x7x8.3
(31x18x22)
13.8x6.8x8.8
(35x17x22)
9x15x7
(23x38x18)
21x11x12
(53x28x31)
Shipping Weight, lbs (kg) 19 (8.6) 25 (11.3) 48.5 (22) 88.2 (40.1)
Shipping Carton Dimensions LxWxH, in. (cm) 21x14x15
(52x35x37)
21x14x15
(52x35x37)
18.9x12.6x11.8
(48x32x30)
23.6x15.8x16.1
(60x40x41)
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Note: 1. Two 3/8” hose barb fittings are provided that thread into NW16 flange to allow use of 3/8” ID hose.