China Yongdes Electric Machinery Co., Ltd. was established in 1995 on the foundation of a large existing state-owned enterprise. As a viking pump manufacturers, suppliers, factories, exporters, wholesalers, salers, dealers. One of the largest producers of pumps, compressors, viking pump, seals and gears in China, we cooperate with a wide spectrum of OEM viking pump and wholesale distributors. All of our products have received warm welcomes, winning great popularity both at home and abroad. If you are interested in any of our series, or have a viking pumps customized requirement to fill, please contact us now. We look forward to the opportunity of adding new members to our growing family of satisfied clients.

The external gear pumping principle uses two rotating gears which unmesh at the suction side of the pump to create voids which allow atmospheric pressure to force fluid into the pump.The spaces between the gear teeth transport the fluid along the outer perimeter of the housing to the discharge side, and then the gears re-mesh at the center to discharge the fluid.The gears are supported by bearings on both sides, which allows high discharge pressure capabilities.The High Speed Compact series pumps are of a Heavy Duty design, with thrust control and micrometer adjustments for accurate rotor positioning. Designed to operate at motor speeds, they are offered in a close-coupled version for minimum footprint.

The Universal Seal Series.The Universal Seal series pumps are similar to the Heavy Duty series, offering thrust control and adjustable rotor clearances to compensate for wear and viscosity.An enlarged bearing housing at the rear of the pump provides easy drive-end access, and accepts various sealing options including:
packing
component mechanical seals
cartridge single-mechanical seals
cartridge double-mechanical seals, and
cartridge triple-lip seals.
This allows drive-end access for maintenance or replacement of cartridge seals without opening the head and pulling the rotor/shaft. Some sizes also offer behind-the-rotor component mechanical seals. Mag drive pumps are used wherever leakage is a problem, such as acids, volatile organic chemicals, or toxic fluids.The pump provides the world's largest selection of rotary lobe pumps for hygienic and industrial applications, including the AccuLobe, DuraLobe, Classic, SQ and SteriLobe series.