Welch 1405B-10 DUOSEAL PUMP W/O MOTOR, 3.2 CFM
Welch 1405B-10 DuoSeal Unmounted Vacuum Pump (Pump Only, Without Motor) – 3.2 CFM
The Welch 1405B-10 is a rugged, chemical-duty capable DuoSeal belt drive vacuum pump head (bare pump without motor). This unmounted version delivers 3.2 CFM (90 L/min) free air displacement and achieves a strong ultimate vacuum of 1 × 10⁻⁴ Torr.
As part of Welch’s trusted DuoSeal series, the 1405B-10 features the legendary low-RPM belt drive design that runs cooler, lasts longer, and handles moderate vapor loads better than direct-drive pumps. The large oil reservoir helps dilute contaminants and extends oil life.
Key Features – Welch 1405B-10
- Model: Welch 1405B-10 (Unmounted / Bare Pump)
- Free Air Displacement: 3.2 CFM (90 L/min)
- Ultimate Vacuum: 1 × 10⁻⁴ Torr
- Technology: 2-Stage DuoSeal Rotary Vane
- Design: Belt Drive – Low RPM for durability
- Motor: Not included (perfect for custom setups or replacement)
Best Applications for Welch 1405B-10
- Rotary evaporators and vacuum distillation
- Vacuum ovens and drying chambers
- Schlenk lines and laboratory vacuum manifolds
- Degassing and vacuum filtration
- Mid-range laboratory and light industrial processes
The Welch 1405B-10 is an excellent intermediate-size pump that bridges the gap between the smaller 1400 series and the larger 1402 series. It offers a great balance of pumping speed and deep vacuum performance in a reliable belt-drive package.
Chemtech Scientific offers genuine Welch DuoSeal unmounted pumps and provides full repair services, rebuild kits, and technical support.
Welch 1405B-10 DuoSeal Unmounted Vacuum Pump (Pump Only, Without Motor) – 3.2 CFM
The Welch 1405B-10 is a rugged, chemical-duty capable DuoSeal belt drive vacuum pump head (bare pump without motor). This unmounted version delivers 3.2 CFM (90 L/min) free air displacement and achieves a strong ultimate vacuum of 1 × 10⁻⁴ Torr.
As part of Welch’s trusted DuoSeal series, the 1405B-10 features the legendary low-RPM belt drive design that runs cooler, lasts longer, and handles moderate vapor loads better than direct-drive pumps. The large oil reservoir helps dilute contaminants and extends oil life.
Key Features – Welch 1405B-10
- Model: Welch 1405B-10 (Unmounted / Bare Pump)
- Free Air Displacement: 3.2 CFM (90 L/min)
- Ultimate Vacuum: 1 × 10⁻⁴ Torr
- Technology: 2-Stage DuoSeal Rotary Vane
- Design: Belt Drive – Low RPM for durability
- Motor: Not included (perfect for custom setups or replacement)
Best Applications for Welch 1405B-10
- Rotary evaporators and vacuum distillation
- Vacuum ovens and drying chambers
- Schlenk lines and laboratory vacuum manifolds
- Degassing and vacuum filtration
- Mid-range laboratory and light industrial processes
The Welch 1405B-10 is an excellent intermediate-size pump that bridges the gap between the smaller 1400 series and the larger 1402 series. It offers a great balance of pumping speed and deep vacuum performance in a reliable belt-drive package.
Chemtech Scientific offers genuine Welch DuoSeal unmounted pumps and provides full repair services, rebuild kits, and technical support.