Impellers, Rings & Pump Parts
  • Increase performance, longevity and reliability!
  • Simsite® Impellers are 100% precision machined from one piece. They are machined on the inside as well as the outside from solid blocks of the structurally engineered composite, which offers Superior Mechanical Strength, Perfect Balance, Better Performance, Smoother Surfaces and Longer Life!
  • Tighter Seals. Simsite® Impellers & Casing Rings will not gall or seize like metallic rings. Therefore, they can operate with a tighter clearance, permitting less leakage through the rings and impeller, which increased pump efficiency. Additionally, Simsite® Casing Rings seal against the casing, which prevents the “wash out” of the casing ring landing areas which is a common maintenance problem with centrifugal pumps.
  • Reduces Noise and Vibration. Because of the high efficiency and the precision machined design of the Simsite® Impeller and Pump Casing, and because of the light weight, and noise absorbing characteristics of the structural engineered composite, noise & vibration are reduced in the pump.

Trouble Free Performance



Impellers machined from Simsite® offer tremendous advantages over traditional impellers cast from metal. Simsite® Impellers are light weight, offer tremendous mechanical strength, and corrosion, erosion & cavitation resistance. Simsite® Impellers and Casing Rings have been used successfully since 1955 in the Marine, Navy and Industrial & Chemical markets. Simsite® Impellers outlast and outperform impellers manufactured from bronze, stainless steel, duplex steel, monel, and even titanium.


Designed for Superior Hydraulic Performance


impeller vane

Because Simsite® Impellers are computer engineered, designed, and precision machined, the impeller vane geometry can be engineered to maximize efficiency and performance. Problems such as recirculation, radial thrust, and cavitation can be minimized, or eliminated by upgrading to Simsite® Impellers & Rings. Impeller vane shapes can easily be modified to provide the best vane shape for specific applications and performance requests.

impeller vane


Optimization rings


It is all too common a problem – You purchased a pump for one specific performance and when you put the pump into service in your plant, or ship, the pump operates at another point completely different from the original design point (BEP – best efficiency point) of the pump because of your system requirements. In addition to being very inefficient, when you operate the pump away from the original design point or BEP, it causes a multitude of problems. These problems include excessive noise & vibration, shaft oscillation, cavitation, premature wear and failure of the mechanical seals, bearings, rings, sleeves and impellers. In extreme cases, the shaft will break.

Fortunately, these problems can be easily resolved by installing Simsite® Impellers & Rings, which have been re-engineered for your system requirements. Not only is the efficiency of the pump improved, but also the reliability and longevity of the complete pump is substantially improved!


Simsite® Impellers – perfect for retrofit & replacement applications



LIGHT WEIGHT – The exceptional high strength-to-weight ratio of Simsite® permits a much lighter weight impeller. This means a substantial reduction in start-up load, longer bearing, ring, motor, and mechanical seal life, and less shaft deflection.
REDUCES NOISE AND VIBRATION – Because of the high efficiency design of the Simsite® Impeller, its light weight, its noise absorbing characteristics, and its precision machined design, noise and vibration are reduced in the pump.
Simsite® Impellers – perfect for retrofit and replacement applications
Simsite® Impellers are an ideal replacement for bronze, or other metallic impellers, especially in corrosive pumping applications. Because Simsite® is an inert material, electrolysis within the pump is reduced considerably. As metallic impellers corrode, they become unbalanced, causing premature wear on all other rotating parts. By replacing worn out parts with Simsite, the pump lasts longer and costs are reduced.


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