Welch 1402B-01 Duoseal Belt Drive Vacuum Pump

The Welch 1402B-01 is a robust, belt-driven, two-stage rotary vane vacuum pump known for its reliability and deep vacuum performance. Ideal for laboratory and industrial applications, this pump delivers strong pumping speed and excellent vapor handling.

What's Included in this Package:

• Welch 1402B-01 Duoseal Vacuum Pump
• 3 Quarts of DuoSeal Vacuum Pump Oil (Part # 1407K-11)
• Common accessory, not included (Part # 1417P-10)

Note: Common accessories such as inlet traps, hoses, or additional fittings are not included.

Technical Specifications

Installation Recommendation The Welch Duoseal 1402B-01 vacuum pump should be located in a clean and well-ventilated area. Adequate space should be provided for routine maintenance such as oil changes and belt adjustments. For best performance, place the pump as close as possible to the vacuum system to minimize tubing length and maximize efficiency.

Welch vacuum complete pumps model numbers include a four number model of pump along with a suffix containing a letter, dash and two numbers to designate voltage. The complete pump (pump, motor, base, belt - ready to run out of the box) in 115v, 60 Hz is a Welch 1402B -01 vacuum pump.

The Welch catalog#: 1402 is a base pump only. It is an unmounted pump typically used for a drop in replacement for a failed pump. The Welch 1402 cat# does not include the base, belt or motor.

Our Blog

• Welch 1402B-01 DuoSeal Vacuum Pump Manual
• Welch 1402B-01 Vacuum Pump_repair_kit.pdf
• Welch 1402B-01 Vacuum Pump_Spare parts and accessories.pdf
• Dimensional drawing
• Manual
• Repair kits
• Spare parts and accessories

Welch 1402B-01 Duoseal Belt Drive Vacuum Pump

The Welch 1402B-01 is a robust, belt-driven, two-stage rotary vane vacuum pump known for its reliability and deep vacuum performance. Ideal for laboratory and industrial applications, this pump delivers strong pumping speed and excellent vapor handling.

What's Included in this Package:

• Welch 1402B-01 Duoseal Vacuum Pump
• 3 Quarts of DuoSeal Vacuum Pump Oil (Part # 1407K-11)
• Common accessory, not included (Part # 1417P-10)

Note: Common accessories such as inlet traps, hoses, or additional fittings are not included.

Technical Specifications

Installation Recommendation The Welch Duoseal 1402B-01 vacuum pump should be located in a clean and well-ventilated area. Adequate space should be provided for routine maintenance such as oil changes and belt adjustments. For best performance, place the pump as close as possible to the vacuum system to minimize tubing length and maximize efficiency.

Welch vacuum complete pumps model numbers include a four number model of pump along with a suffix containing a letter, dash and two numbers to designate voltage. The complete pump (pump, motor, base, belt - ready to run out of the box) in 115v, 60 Hz is a Welch 1402B -01 vacuum pump.

The Welch catalog#: 1402 is a base pump only. It is an unmounted pump typically used for a drop in replacement for a failed pump. The Welch 1402 cat# does not include the base, belt or motor.

Our Blog

• Welch 1402K-05 MINOR REPAIR KIT, for 1402 and 1405 Vacuum Pump
• Welch 1402K-06 MAJOR REPAIR KIT, for 1402 and 1405 Vacuum Pump
• Welch 1401D
• Welch 1393G ISO Adapter NW25 for 1405, 1402, 1376
• Welch 1393K Hose Adapter 13/16 ID
• Welch 1393M Hose Adapter New Style 1405
• Welch 1393P Inlet / Exhaust Connectors - Pipe
• Welch 1416C-01
• Welch 1401D-01
• Welch DuoSeal Vacuum Pump Oil, Liter 1407K-11
• Welch 1407K-15 Duo Seal Pump Oil 1 Gallon
• Welch 1407K-20 Duo Seal Pump Oil 5 Gallons

• Welch 1402B-01 Vacuum Pump_repair_kit.pdf
• Welch 1402K-05 MINOR REPAIR KIT, for 1402 and 1405 Vacuum Pump
• Welch 1402K-06 MAJOR REPAIR KIT, for 1402 and 1405 Vacuum Pump
• Repair kits