Welch
Welch 2037B-01 vacuum pump 1/5 HP 1.8 cfm 28.5 in Hg 115V
Delivers 1.8 cfm free air displacement and 28.5 in Hg maximum vacuum from a 1/5 hp motor on 115 V single-phase power
- MaterialHAWA
- 1/5 HP motor delivers 1.8 cfm free air displacement
- 5 in Hg maximum vacuum reaches 47 mbar pressure
- 115 V AC single-phase power for standard outlet use
- 1/4 inch NPT inlet and hose barb outlet suit resin transfer moulding
- New Welch 2037B-01 pump built for reliable vacuum performance
Welch 2037B-01 Vacuum Pump
The Welch 2037B-01 is a single-phase vacuum pump delivering 1/5 hp output power at 115V AC. It provides a free air displacement of 1.8 cfm and achieves a maximum vacuum of 28.5 in Hg. This unit suits resin transfer molding applications and similar processes requiring consistent vacuum generation.
Sustained Operation
Under continuous load the pump maintains its rated free air displacement of 1.8 cfm while pulling toward the 28.5 in Hg maximum vacuum level. The 1/5 hp motor is designed for steady single-phase operation without the duty-cycle limitations of intermittent-use devices. Vacuum pressure stabilises around 47 mbar during extended runs, supporting consistent resin flow in transfer molding cycles.
Interface Limits
The pump uses a 1/4 in NPT inlet and a 1/4 in hose barb outlet, fixing the connection size for plumbing. These port dimensions set the practical flow ceiling for the 1.8 cfm displacement rating. The 115V AC single-phase supply requirement determines where the unit can be installed without additional electrical work.
Highlights
- 1/5 HP motor delivers 1.8 cfm free air displacement
- 5 in Hg maximum vacuum reaches 47 mbar pressure
- 115 V AC single-phase power for standard outlet use
- 1/4 inch NPT inlet and hose barb outlet suit resin transfer moulding
- New Welch 2037B-01 pump built for reliable vacuum performance
Specifications
| Brand | WELCH |
|---|---|
| Material | HAWA |
Questions about this item
How much noise and heat does the 1/5 HP motor produce when running continuously?
The pump delivers 1.8 cfm free air displacement at 28.5 in Hg maximum vacuum, so heat and sound scale with that continuous load.
What fittings or hose must I already have to connect the 1/4 in NPT inlet and 1/4 in hose-barb outlet?
You need a 1/4 in NPT male fitting for the inlet and a hose with a 1/4 in inner diameter for the outlet barb.
Will this 115V single-phase unit run on the same circuit as my older 115V tools without tripping breakers?
It draws single-phase 115V AC power like other 115V tools, so total circuit load depends on what else is running simultaneously.
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