Problem: Seal failures due to off BEP operation.
System One Solution: Large diameter solid shaft with the lowest LD ratio in the industry (19) provides the stiffness required to withstand damaging forces and maintain seal face alignment.

Problem: Oil contamination.
System One Solution: Small amounts of dirt and water can cause complete bearing failure in a short period of time.Chesterton labyrinth seals,standard on the Frame M Pump,keep dirt and moisture out, prolonging oil and bearing life.

Problem: Damaging vibration caused by motor misalignment.
System One Solution: C-Frame/D-Flange adapters take the time and guesswork out of motor alignment. Instant alignment prevents destructive vibration and reduces labor costs.

Typical shaft high 
L 3/D 4 equals high vibration.

Blackmer LD shaft has the lowest L 3/D 4 ratio in the industry.

Straight Bore

• Large seal chamber volume provides optimum volume for seal lubrication and cooling.
• Cast restriction bushing reduces fluid exchange between casing and seal chamber and allows maximum cooling of fluid. Other bushing options are available including carbon and Spiraltrac®

Spiraltrac® is a registered trademark of EnviroSeal Engineering Products Ltd.

• Two industry- tested seal chamber designs provide the right seal environment for virtually any process application.
• Large volume seal chambers accept standard sized glands.
• Available seal chamber jackets provide optimum cooling or heating of seal chamber fluid.

Taper Bore

• Vortex breakers alter seal chamber flow patterns to move solids out and away from the seal.
• Air or gas buildup can be detrimental to seal life. Taper design allows trapped air and gases to escape.