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WELCH Vacuum Pump: 1.1 hp, 1 Phase, 115V AC, 21 cfm Free Air Displacement - Lubricated Rotary Vane Vacuum Pumps
WELCHLubricated Rotary Vane Vacuum Pumps

WELCH Vacuum Pump: 1.1 hp, 1 Phase, 115V AC, 21 cfm Free Air Displacement

The WELCH Vacuum Pump: 1.1 hp (MPN 3301-01) is a lubricated rotary vane vacuum pump. It operates on 115V AC, single phase, with a free air displacement of 21 cfm and a maximum vacuum of 29.9 in Hg. The pump features…

SKU 3G-OTH-138759

Also listed as: 330101 · 3301 01

Brand
WELCH
Item
Vacuum Pump: 1.1 hp, 1 Phase, 115V AC, 21 cfm Free Air Displacement
Category
Lubricated Rotary Vane Vacuum Pumps
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

WELCH
Manufacturer Part Number
3301-01
AC
115V
Phase
1
Hg Max Vacuum
29.9 in
Free Air Displacement
21 cfm

Technical Documents

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WELCH Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WELCH Vacuum Pump: 1.1 hp (MPN 3301-01) is a lubricated rotary vane vacuum pump. It operates on 115V AC, single phase, with a free air displacement of 21 cfm and a maximum vacuum of 29.9 in Hg. The pump features NPT connections.

Frequently Asked Questions

What is the WELCH 3301-01 vacuum pump used for?

The WELCH 3301-01 lubricated rotary vane vacuum pump is used for industrial applications requiring reliable vacuum, such as filtration, degassing, and material handling. With 21 cfm free air displacement and 29.9 in Hg max vacuum, it suits laboratory and light manufacturing processes.

What are the specifications of the WELCH 3301-01 vacuum pump?

The WELCH 3301-01 vacuum pump has 1.1 hp, 115V AC, single phase, 21 cfm free air displacement, and 29.9 in Hg max vacuum. It uses NPT connections and is a lubricated rotary vane design. The manufacturer part number is 3301-01.

Where to buy the WELCH 3301-01 vacuum pump worldwide?

3G Electric supplies the WELCH 3301-01 vacuum pump worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine WELCH equipment and support your procurement needs across all regions.

How to install a WELCH lubricated rotary vane vacuum pump?

Install the WELCH 3301-01 on a level surface with adequate ventilation. Connect NPT piping securely, verify 115V AC single-phase power, and check oil level before startup. Follow the manufacturer's manual for proper belt tension and coupling alignment to ensure reliable operation.

Used in

Common applications for WELCH
Industrial vacuum processing — WELCH lubricated rotary vane pumps (e.g., MPN 3041-01) for continuous operation in manufacturing
Refrigeration system evacuation — WELCH commercial refrigeration service pumps (e.g., MPN 1397B-46) for HVAC maintenance
Chemical handling — WELCH chemical duty diaphragm pumps (e.g., MPN 2037B-01) for oil-free vacuum in corrosive environments
Portable field service — WELCH portable diaphragm pumps (e.g., MPN 2050B-01) for on-site vacuum applications
Laboratory vacuum systems — WELCH lubricated rotary vane pumps (e.g., MPN 3016-02) for research and testing
Vacuum pump maintenance — WELCH replacement hoses (e.g., MPN 331040-10) and inlet condensers (e.g., MPN 320016) for system upkeep

WELCH Products

3G Electric supplies WELCH lubricated rotary vane vacuum pumps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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