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WELCH

WELCH is a manufacturer of vacuum pumps, compressors, and related accessories, with a product history that includes rocking piston, rotary vane, and diaphragm technologies. The brand is known for supplying laboratory and industrial vacuum solutions, and its components are used in applications requiring oil-free or oil-lubricated operation. 3G Electric distributes WELCH products globally, offering 43 SKUs that cover exhaust filters, rocking piston pumps, and other vacuum accessories. The product line includes exhaust filters designed to remove oil mist and particulates from vacuum pump discharge, with filtration efficiencies up to 99.9% and various sizes to match different pump models. For example, the 1417P-11 filter has a 5-inch outside diameter and 9 1/2-inch overall height, while the 1417P-8 is a smaller 2 1/2-inch diameter unit. These filters are suitable for laboratory, industrial, and research settings where clean exhaust is required. Rocking piston pumps in the WELCH lineup are available in compressor or vacuum configurations, with flow rates ranging from 1.6 cfm to 7.1 cfm and maximum vacuum levels up to 29.8 in Hg. They operate on 115V AC single-phase power, making them suitable for standard electrical supplies. The pumps are often used in filtration, degassing, and other processes that demand reliable, continuous operation. 3G Electric supports the WELCH line by providing datasheets, technical specifications, and logistics coordination for global delivery. The company stocks a range of SKUs, including the 2546B-01, 8150B-30, and 2581B-50 models, which are part of the rocking piston high flow series. These pumps are designed for applications requiring clean, oil-free air or vacuum, and they are built to handle continuous duty in various environments. In addition to pumps and filters, 3G Electric offers accessories such as exhaust filters that help maintain pump performance and reduce oil mist in exhaust streams. The filters are available in multiple sizes to fit different pump models, ensuring compatibility and ease of maintenance. WELCH products are typically found in laboratories, industrial processes, and research facilities where vacuum or compressed air is essential. The brand's focus on durable construction and consistent performance makes it a choice for engineers and maintenance professionals who need reliable equipment. 3G Electric's role is to facilitate access to these products, providing technical information and supply chain support to customers worldwide. By offering a comprehensive catalog of WELCH SKUs, 3G Electric enables buyers to specify the right components for their vacuum systems, whether they need a replacement filter or a complete pump. The company's global reach ensures that customers can obtain WELCH products regardless of their location, with logistics handled efficiently. This combination of product availability and support services positions 3G Electric as a resource for those seeking WELCH vacuum solutions.

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About WELCH

WELCH is a manufacturer of vacuum pumps, compressors, and related accessories, with a product history that includes rocking piston, rotary vane, and diaphragm technologies. The brand is known for supplying laboratory and industrial vacuum solutions, and its components are used in applications requiring oil-free or oil-lubricated operation. 3G Electric distributes WELCH products globally, offering 43 SKUs that cover exhaust filters, rocking piston pumps, and other vacuum accessories. The product line includes exhaust filters designed to remove oil mist and particulates from vacuum pump discharge, with filtration efficiencies up to 99.9% and various sizes to match different pump models. For example, the 1417P-11 filter has a 5-inch outside diameter and 9 1/2-inch overall height, while the 1417P-8 is a smaller 2 1/2-inch diameter unit. These filters are suitable for laboratory, industrial, and research settings where clean exhaust is required. Rocking piston pumps in the WELCH lineup are available in compressor or vacuum configurations, with flow rates ranging from 1.6 cfm to 7.1 cfm and maximum vacuum levels up to 29.8 in Hg. They operate on 115V AC single-phase power, making them suitable for standard electrical supplies. The pumps are often used in filtration, degassing, and other processes that demand reliable, continuous operation. 3G Electric supports the WELCH line by providing datasheets, technical specifications, and logistics coordination for global delivery. The company stocks a range of SKUs, including the 2546B-01, 8150B-30, and 2581B-50 models, which are part of the rocking piston high flow series. These pumps are designed for applications requiring clean, oil-free air or vacuum, and they are built to handle continuous duty in various environments. In addition to pumps and filters, 3G Electric offers accessories such as exhaust filters that help maintain pump performance and reduce oil mist in exhaust streams. The filters are available in multiple sizes to fit different pump models, ensuring compatibility and ease of maintenance. WELCH products are typically found in laboratories, industrial processes, and research facilities where vacuum or compressed air is essential. The brand's focus on durable construction and consistent performance makes it a choice for engineers and maintenance professionals who need reliable equipment. 3G Electric's role is to facilitate access to these products, providing technical information and supply chain support to customers worldwide. By offering a comprehensive catalog of WELCH SKUs, 3G Electric enables buyers to specify the right components for their vacuum systems, whether they need a replacement filter or a complete pump. The company's global reach ensures that customers can obtain WELCH products regardless of their location, with logistics handled efficiently. This combination of product availability and support services positions 3G Electric as a resource for those seeking WELCH vacuum solutions.

Common Applications

  • Laboratory vacuum systems — WELCH 1417P-11 exhaust filter for oil mist removal
  • Industrial degassing processes — WELCH 8150B-30 rocking piston pump for vacuum generation
  • Research filtration setups — WELCH 2581B-50 rocking piston pump for high vacuum
  • Compressed air for instrumentation — WELCH 2546B-01 rocking piston compressor
  • Oil-free vacuum for environmental chambers — WELCH rocking piston pumps with 115V AC operation
  • Exhaust air treatment in industrial settings — WELCH 1417P-8 and 1417P-20 exhaust filters

Frequently asked questions

Common questions about WELCH from 3G Electric.

What is the filtration efficiency of WELCH exhaust filters?

WELCH exhaust filters, such as the 1417P-11 and 1417P-8, are rated for 99.9% filtration efficiency. They are designed to remove oil mist and particulates from vacuum pump exhaust streams. This high efficiency helps maintain a clean work environment and protects downstream equipment. The filters are available in various sizes to match different pump models, ensuring proper fit and performance.

What are the power requirements for WELCH rocking piston pumps?

WELCH rocking piston pumps, including models like the 2546B-01 and 8150B-30, operate on 115V AC single-phase power. This makes them suitable for standard electrical outlets in many industrial and laboratory settings. The pumps are available in different horsepower ratings and flow capacities, but all share the same voltage and phase requirement for ease of installation.

Can WELCH rocking piston pumps be used for both vacuum and compressor applications?

Yes, many WELCH rocking piston pumps are designed for dual service as either vacuum pumps or compressors. For example, the 2546B-01 delivers 1.6 cfm and can produce up to 100 psi continuous pressure, while also providing vacuum. This versatility allows the same pump to be used in different processes, reducing the need for multiple units. However, specific models may have different maximum ratings for vacuum and pressure, so consult the datasheet for exact specifications.

What is the maximum vacuum level achievable with WELCH rocking piston pumps?

WELCH rocking piston pumps can achieve maximum vacuum levels up to 29.8 in Hg, as seen in the 2581B-50 model. Other models like the 8150B-30 reach 26 in Hg. These vacuum levels are suitable for a range of applications including filtration, degassing, and aspiration. The actual vacuum achieved may depend on factors such as altitude, temperature, and system configuration.

How do I select the correct WELCH exhaust filter for my pump?

Selecting the correct WELCH exhaust filter involves matching the filter's dimensions and connection type to your pump's exhaust port. Filters are available in sizes such as 2 1/2-inch and 5-inch outside diameters, with overall heights varying from 2 1/2 inches to 9 1/2 inches. The manufacturer part number (e.g., 1417P-11, 1417P-10) can be cross-referenced with your pump model. 3G Electric provides datasheets and technical support to help identify the right filter.

Does 3G Electric supply WELCH products?

Yes — 3G Electric (S) Pte. Ltd. supplies WELCH products. We stock the WELCH catalog and supply genuine factory-original products with full manufacturer warranty and technical support.