Viking Modular Stainless Steel, Steel & Cast Iron Internal Gear Pumps

Viking Pump’s modular, customizable pumps featuring the U-Plus™ bracket and optional ProPort™ casing are now available in stainless steel, steel, and cast iron construction. Built on a flexible modular platform, this next generation of Universal internal gear pumps offers greater configuration options, simplified maintenance, and the ability to adapt as system requirements change.

Pumps Built for Modularity & Customization

Modularity and customization are at the core of this next-generation design.

Viking Pump completed the Universal Product Line upgrade with the release of cast iron models in early 2026, featuring the U-Plus™ bracket and optional ProPort™ casing. Customers can dramatically reduce inventory, simplify maintenance processes, and future-proof installations.

Flexible Pump Sealing Options with U-Plus™

Viking Pump U-Plus Bracket

The new U-Plus™ bracket allows users to install any of Viking Pump’s cartridge or component mechanical seals, packing, or O-Pro® seals.

Its seal chamber accepts multiple seal types, giving users significantly more flexibility. This improvement is especially valuable for legacy 724 and 4724 Series™ pumps. By integrating both series into the Universal Product Line, seal changes become much simpler. Switching seal types no longer requires pump modifications. Users can install packing, various stuffing box component seals, cartridge seals, behind-the-rotor seals, or Viking Pump’s own O-Pro® seals in pumps equipped with the U-Plus™ bracket. As an added bonus, Viking pumps with the new U-Plus™ bracket come standard with perforated window guards for protection from rotating parts.

Advanced Pump Porting with ProPort™ Casing

Viking Pump ProPort Casing Options

The ProPort™ casing unlocks greater installation flexibility with:

  • Customizable port sizes and types
  • Standard casing drain
  • Standard internal circulation holes
  • Ability to utilize flat gaskets or O-rings between pump sections, including the bracket, casing, head, and ports

Special mounting pads allow the ProPort™ casing to accommodate multiple port sizes and connection types, making piping installation much more flexible. It also includes a threaded casing drain as standard, with optional internal circulation. This increases versatility while reducing the number of pump variations needed throughout a facility.This new casing is also designed to accommodate o-rings or fiber gaskets for joint sealing between the bracket, casing, and head – as well as the bolt on ports – for increased sealing ability in high pressure or difficult to seal applications.

Pumps Designed for Easy Upgrades

These pumps are dimensionally interchangeable with legacy Universal Series internal gear pumps, making upgrades simple without requiring a complete system redesign.

The result is greater flexibility, simpler maintenance, and the ability to adapt your pump as operating requirements change. As your process evolves, your pump can evolve with it. Larger flanges can be added to match new piping requirements, while seals can be changed to suit different applications without replacing the entire pump.

If you’re replacing an older Viking Pump, U-Plus™ bracketed pumps are dimensionally interchangeable with legacy Universal, 724, and 4724 Series™ pumps. These updated pump series’ offer identical performance to their previous versions, so users can expect the same high-performance standards. Bring durability, reliability, and even more flexibility with Viking Pump’s U-Plus™ bracket and ProPort™ casing.

Pumps Built for Challenging Applications

Stainless steel models are ideal for demanding applications involving industrial chemicals, biofuels, detergents, and corrosive fluids.
Steel construction provides another durable option within the same modular platform, giving users additional flexibility.
For heavy-duty service, cast iron models deliver exceptional strength while offering the same modular advantages.

Stainless Steel Modular Pump Solutions

Stainless steel models are designed for applications where corrosion resistance and material compatibility are critical.

Steel Modular Pump Solutions

Viking Pump ProPort Flanges

Steel construction expands the modular Universal Series platform for applications that require added strength while maintaining the same configurable sealing, porting, and component options.

Cast Iron Modular Pump Solutions

Viking Pump U-Plus Bracket Comparison

Cast iron models complete Viking Pump’s modular Universal Series platform. Featuring the U-Plus™ bracket and optional ProPort™ casing, they deliver the same configurability and performance available in stainless steel and steel models.

As a result, customers can standardize on one modular platform, reduce spare parts inventory, simplify maintenance, and future-proof future installations.

One Pump. Multiple Materials. Unlimited Configurations.

Available in cast iron, stainless steel, and steel, every pump is built on the same modular platform. Ports, seals, and brackets can be configured—or changed later—without replacing the entire pump.

As system requirements evolve, the pump can evolve with them. That helps protect your investment while minimizing future replacement costs.

Upgrade your pump. Improve your process. Drive your business forward.

See all the models here.

Contact Kerr for further information and selection assistance.