1400N-50 - CHEMSTAR, 230V 50Hz 1Ph with Schuko Plug

Chemstar® pumps are built to withstand corrosive chemical vapor environments - durable performance over the long haul.
SKU: 1400N-50
Manufacturer part number: 1400N-50
$2,775.00
$2,584.99

Apply deep vacuum to your system in the toughest conditions. Chemstar® pumps are built to withstand corrosive chemical vapor environments - durable performance over the long haul. Chemstar® is designed to minimize the effects of harmful chemicals:


Rugged Rotary Vane Design Built to the renowned performance standards of Welch Duoseal® pumps, Chemstar® utilizes vapor contact components that are tough and chemical resistant. The belt-drive mechanism gears the pump down, enabling slow pump operation to reduce friction and keep operating temperatures low.


Lubrication System:  The oil capacity is large for excellent dilution of contaminants. Oil is fed to the pump from the top of the reservoir, allowing sludge to settle without compromising lubrication. The recommended lubricant ("Gold Oil") is a synthetic oil designed to reduce chemically active sites. Use the nitrogen purge to drive elimination of corrosive gases.

Key Accessories:  Welch also provides the system add-ons that further protect your pump and your environment. Select the equipment that augments your vacuum system needs – traps, oil mist eliminators, and system components.


Large Oil Reservoir
Oil Feed Location
Few Moving Parts


2.  Vital Parts Corrosion Resistant

   • Fluoroelastomer seals and gaskets 

    • PTFE   

    • Stainless Steel

    • Nickel Plated or Anodized    

    • Chemical Resistant Grade of Cast Iron

3.  Reduced Frictional Wear

     • Less than 580 RPM vs. typical 1750 RPM direct drive

4.  Nitrogen Purge Standard

     • Degasses and cools oil

5.  Easy Attachment of Accessories

     • Complete accessory package for corrosive gases

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