Frame S Centrifugal Pumps

The Frame S Centrifugal Pump is the heavy duty alternative to standard small frame pumps which can easily become overstressed when operated off the best efficiency point of its performance curve. The Frame S Centrifugal Pump provides mid-frame strength and reliability in small frame space. It can be installed in the same space, on the same baseplate, and with the same piping as conventional small frame pumps, and is available in four different sizes.

Heavy duty alternative to standard small frame pumps
Lowest L³/D⁴ stiffness ratio of any competitive size pump
Designed and built for the toughest applications

Features
Performance Assurance
Testimonials
Downloads

Features and Benefits

Mid-size frame strength and reliability in small frame space - heavy-duty alternative to standard small frame pumps
Four model sizes to fit a wide range of applications and size restrictions
Lowest L3/D4 stiffness ratio of any competitive size pump - 46 (1.9) Frame S
Meets ASME/ANSI dimensional specifications
Flow capacities to 450 gpm (102 m3/hr)
Equipped to accept a C-Frame (NEMA)/D-Flange (IEC) motor adaptor, providing
alignment of motor and power end without special tools or excessive labor
Right or left side discharge is possible with optional special foot
Heavy-duty construction and low stiffness ratios on shafts
Prevents common vibration damage and improves seal life
Short shaft overhand reduces bearing load to extend bearing life
Oversized heavy duty bearings provide greater load capacity and extend bearing
life
Frame S offers an optional bearing frame foot with overhung casing

Applications

Chemicals
Mining de-watering
Water/wastewater
Liquid terminals

Technical Data

Ductile iron, 316 stainless steel and CD4MCu, A-20 materials available
Metric and ASME (ANSI) models available
Max. temperature: 400° C (750° F)
Micrometer adjustment nuts simplify and ensure precise impeller setting

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Performance Assurance

Five Year Power End Performance Assurance

Should any Blackmer Centrifugal Power End component fail within 5 years of the original installation, including bearings or shafts that have fractured, a free replacement component will be provided. This offer is limited to a claim for one of each component per power end.*

One Year Mechanical Seal Performance Assurance

Should any factory supplied and installed mechanical seal fail within one year after the sale of the pump and seal, a spare parts kit (with materials the same as the original seal) will be provided at no charge. Limit of one seal claim per application.*

*See current Blackmer Warranty form 001-002 for full product warranty detail including exclusions and limitations of liability.