WELCH 1397B-46 Rotary Vane Vacuum Pump, 1 hp, 115/230V, 17.7 cfm
The WELCH 1397B-46 is a 1 hp commercial and industrial refrigeration service rotary vane vacuum pump. It operates on 115/230V AC single-phase power and features an NPT connection with a free air displacement of 17.7 cfm.
SKU 3G-OTH-136006
Also listed as: 1397B46 · 1397B 46
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The WELCH 1397B-46 is a 1 hp commercial and industrial refrigeration service rotary vane vacuum pump. It operates on 115/230V AC single-phase power and features an NPT connection with a free air displacement of 17.7 cfm.
Frequently Asked Questions
What is the WELCH 1397B-46 vacuum pump used for?
The WELCH 1397B-46 is a rotary vane vacuum pump designed for commercial and industrial refrigeration service. It is used for evacuating refrigerant lines, pulling deep vacuum on HVAC systems, and maintaining vacuum in industrial processes. Its 17.7 cfm free air displacement makes it suitable for medium to large refrigeration systems.
What are the specifications of the WELCH 1397B-46 vacuum pump?
The WELCH 1397B-46 is a 1 hp rotary vane vacuum pump with a free air displacement of 17.7 cfm. It operates on 115/230V AC single-phase power and has an NPT connection. The manufacturer part number is 1397B-46. It is built for commercial and industrial refrigeration service applications.
Where to buy the WELCH 1397B-46 vacuum pump worldwide?
3G Electric supplies the WELCH 1397B-46 vacuum pump worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver this WELCH pump to meet your refrigeration service needs.
How to maintain the WELCH 1397B-46 rotary vane vacuum pump?
Regular maintenance of the WELCH 1397B-46 includes checking and changing the oil per the manufacturer's schedule, inspecting the inlet filter for debris, and ensuring the NPT connections are tight. Keep the pump clean and operate it within the specified voltage range of 115/230V AC. Proper maintenance extends pump life and performance.
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3G Electric supplies WELCH commercial & industrial refrigeration service 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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Compatible alternatives & equivalents
- WELCH Rotary vane vacuum pump designed for corrosive environments. Operates on 115/230V AC single-phase power with 5.6 cfm free air displacement. Suitable for applications such as chemical processing, laboratory fume extraction, and vacuum filtration systems where exposure to aggressive vapors or gases is expected
- WELCH This lubricated rotary vane vacuum pump operates on 115V AC, single phase, with a free air displacement of 21 cfm and a maximum vacuum of 29.9 in Hg. It is suited for industrial applications such as filtration, degassing, and material handling. Connections are NPT