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WELCH Piston Vacuum Pump: 0.333 hp, 1 Phase, 115V AC, 29.8 in Hg Max Vacuum, 3.5 cfm - Rocking Piston High Flow Compressor/Vacuum Pumps
WELCHRocking Piston High Flow Compressor/Vacuum Pumps

WELCH Piston Vacuum Pump: 0.333 hp, 1 Phase, 115V AC, 29.8 in Hg Max Vacuum, 3.5 cfm

The WELCH Piston Vacuum Pump (MPN 2581B-50) is a 0.333 hp rocking piston high flow compressor/vacuum pump. It operates on 115V AC, single phase, delivering a maximum vacuum of 29.8 in Hg and a flow rate of 3.5 cfm.

SKU 3G-OTH-153196

Brand
WELCH
Item
Piston Vacuum Pump: 0.333 hp, 1 Phase, 115V AC, 29.8 in Hg Max Vacuum, 3.5 cfm
Category
Rocking Piston High Flow Compressor/Vacuum Pumps
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Technical Specifications

WELCH
Manufacturer Part Number
2581B-50
Type
3.5 cfm, Rocking Pump
AC
115V
Phase
1
Hg Max Vacuum
29.8 in
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WELCH Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WELCH Piston Vacuum Pump (MPN 2581B-50) is a 0.333 hp rocking piston high flow compressor/vacuum pump. It operates on 115V AC, single phase, delivering a maximum vacuum of 29.8 in Hg and a flow rate of 3.5 cfm.

Frequently Asked Questions

What is the WELCH Piston Vacuum Pump used for?

The WELCH Piston Vacuum Pump (MPN 2581B-50) is used for industrial vacuum applications requiring a rocking piston design, such as filtration, degassing, and material handling. It delivers a maximum vacuum of 29.8 in Hg and a flow rate of 3.5 cfm, suitable for moderate-duty processes in labs or manufacturing.

What are the specifications of the WELCH Piston Vacuum Pump 2581B-50?

The WELCH 2581B-50 is a 0.333 hp rocking piston pump operating on 115V AC, single phase. It provides a maximum vacuum of 29.8 in Hg and a flow rate of 3.5 cfm. The pump is designed for high-flow compressor/vacuum duties and is manufactured by WELCH.

Where to buy the WELCH Piston Vacuum Pump worldwide?

You can source the WELCH Piston Vacuum Pump (2581B-50) through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this WELCH rocking pump.

How to install the WELCH Piston Vacuum Pump?

Install the WELCH Piston Vacuum Pump on a stable, level surface with adequate ventilation. Connect to a 115V AC, single-phase power supply. Use appropriate vacuum-rated hoses and fittings. Ensure the pump is securely mounted and check for leaks before operation. Refer to the WELCH manual for detailed guidance.

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 rocking piston high flow compressor/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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