VSX Double-Suction Split-Case Pump

At Bell & Gossett, we have over 88 years of experience in designing pumps. New VSX Double-Suction Split-Case Pump has Maintenance-Free Bearings, new One-Piece Unitized Seal, Groutless Base Plate, Alignment-Friendly Coupling, reduced pump room footprint by up to 40% when compared to traditional split-case and vertical inline pumps. (select the literature tab from the main product page to download Pump Curves, Manuals, and Specifications)

VSC/VSCS Series Floor space savings for a VSC pump as compared to a vertical in-line pump.

Series VSC floor Space – 13 sq. ft. Up to 40% smaller footprint than VIL Static vertical load on flanges allowed Pipe spool not required Fewer components for installation

Vertical in-line floor Space – 21 sq. ft. Installed floor space is as much as 40% larger Discharge spool required to prevent hydraulic noise Static vertical load not allowed on valve or diffuser Additonal components to purchase and install

Maintenance Free Bearings

Deep Groove Single Row
Sealed on inboard side

• Factory greased for life!
• 50,000 hr. min L10
• Polyrex Grease

Our maintenance-free bearings eliminate the need for regular maintenance, documentation logs, over-greasing problems and the risk of mixing greases that can cause early failure. This design not only reduces maintenance time and costs, but also helps extend pump life.

Groutless Structural-Steel Base Plate

Base plates must be designed with sufficient rigidity to allow the pump and motor shafts to accept the loads without resulting in undue stress, deflection or vibration. This avoids premature wear on the coupling, bearings and mechanical seals and avoids early failure of the equipment. By utilizing advanced Finite Element Analysis and design, a modern state of the art base plate can be provided.

When compared against other styles of base plates commonly found on the market today, the VSX welded steel baseplate provides superior base stress and frequency capabilities, designed in accordance to ANSI/H.I. 1.3-2000.

• Typical rolled-channel base: the maximum amount of base plate stress reaches 41600 PSI.
• Typical fabricated-rail base: the maximum amount of base plate design stress reaches 28700 PSI.
• VSX structural-steel base plate: the maximum amount of base stress reaches 22900 PSI.

Alignment-Friendly Coupling

Elastomeric couplings are specifically designed to accommodate angular shaft misalignment, as well as parallel offset of the pump and motor shafts. However, the amount of the offset and/or misalignment is dependent on the type and style of flexible coupling applied. Left unchecked, coupling misalignment has a significant impact on the overall life of the mechanical seals and bearings of the pump.
Coupling Type VSX Non-spacer coupling up to 1000 HP @1750 RPM Jaw Type EPDM Hytrel Angular Misalignment 2 – 4 Degrees .9 – 1.3 Degrees 1 Degree .25 Degrees Parallel Misalignment 1/16 – 1/8” .008 – .027 .01 – .062 .01 – .035