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ProBoostTM
$2,675.00
Increases the flow and decreases the vacuum
pressure of a vacuum pump
Recovers cleaner Clear due to lower temperatures for
each fraction Increases collection speed/feed rates 20‐50%
Dry ice cold trap efficiency not impacted
Figure 1: ProBoost connected to a
CRVpro 8 rotary vane pump
configured with optional pump
connection kit(cat. no. 1392K‐01) and
high vacuum valve (704527)
Welch’s ProBoost is an air cooled gas jet pump (commonly called a diffusion pump). The gas jet is formed by
directing boiling silicone vapors thru a hollow cone. Since there are no internal moving parts, the pump is very
simple. The pumping action commences when the vacuum pressure in the still (i.e. wiped film) goes below 0.2
Torr (200 millitorr). On an empty, leak free still, ProBoost backed by a rotary vane pump lowers the vacuum
pressure to 0.00002 Torr (20x lower in pressure than a 2‐stage rotary vane pump can do alone).
The benefit of the lower vacuum pressures is fractions are pulled off at lower temperatures, more precisely.
Terpenes are also pulled off in Short Path Stills that might normally come off with Clear. Wiped Film Stills see
20% to 50% improvement in feed rates/collection rates due to ProBoost’s lower pressures and increased flow
rates. Dry ice cold trap efficiency is minimally impacted in preventing terpene ingestion.
ProBoost Technical Specifications*
| Specs | Model 1392 |
|---|---|
| Maximum Pumping Speed, Air | 80 liters/sec |
| Ultimate Vacuum Pressure | 0.00002 torr |
| Minimum Backing Pump FAD@60Hz | 3 CFM |
| Maximum Discharge Pressure | 0.2 torr |
| Heat‐up time | 0.2 torr |
| Inlet Connection | 20 minutes |
| Discharge Connection | NW50 |
| Silicone Oil Capacity* 25 ml | 25 ml |
| Cool down time | 20 minutes |
| Pump dimensions: L x W x H | 5.5 x 5.4 x 7.5 in |
| ProBoost weight lbs (kg) | 5.6 lbs (2.5 kg) |
| Ordering Information | |
| 115V 60Hz 1Ph with N.American plug | 1392B‐01 |
| 230V 50Hz 1Ph with Schuko plug |
1392C‐02 |
Components Needed to Complete a High Vacuum System
| Useage | Description | Consists Of | Cat. No. |
|---|---|---|---|
| Connects ProBooster to CRVpro 4,6,8, 16, 24 and 30 | Components needed to connect to rotary vane pump and neck booster inlet to NW25 | (2)90deg NW25 SS elbows, (3) SS NW25 centering ring assemblies, (3) NW 25 hinge clamps; (1) conical reducer NW25 to NW50 | 1392K‐01 |
| Closes off ProBoost prior to releasing vacuum to still | Aluminum High vacuum butterfly valve | Very high conductance NW25 valve with quick open and close | 704527 |
| Alternative to rubber hose** | Flexible metal hose, 19.7 in | Accordian metal tubing with NW25 flanges to connect ProBoost to Still | 710762 |
**To achieve maximum performance with ProBoost with your still, Welch recommends NW flange connections and metal hose plumbing.
Consult with your Welch sales rep on vacuum system design.
Specification: ProBoostTM
| Weight | 99.9999 lbs |
|---|
