Sims impellers machined from Simsite® offer tremendous advantages over traditional impellers cast from metal. Simsite® impellers are lightweight, offer tremendous mechanical strength, and are corrosion, erosion and cavitation resistant. Simsite® impellers and casing rings have been used successfully since 1955 in the Marine, Navy, and industrial and chemical markets. They outlast and outperform impellers manufactured from bronze, stainless steel, duplex steel, monel, and even titanium.
Lower Costs, Increased Performance
Sims Simsite® impellers and rings are excellent for new, repair, or retrofit applications. They are lightweight and virtually indestructible. Wear of other pump parts including the pump casing are greatly reduced because of the Simsite® impeller's perfect balance, lightweight, self-lubricating, sealing, and corrosion, erosion, and cavitation resistance. This means far less expense for replacement of parts, downtime, and years of trouble-free performance.
Designed for Superior Hydraulic Performance
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 re-circulation, radial thrust, and cavitation can be minimized, or eliminated by upgrading to Simsite® impellers and rings. Impeller vane shapes can easily be modified to provide the best vane shape for specific applications and performance requests.
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 or 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 and 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 and rings which have been reengineered 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.
Key Reasons to Choose Simsite® Impellers & Casing Rings
1. ELIMINATES ELECTROLYSIS — Simsite® is an inert composite which does not conduct electrolysis. Prolonged exposure to salt water will not affect Simsite® parts.
2. CORROSION RESISTANT — One of the most important advantages Simsite® has over metal is its resistance to corrosion and erosion in salt water. It is also excellent with most chemical applications and is not subject to damage by gasoline, oil or refinery byproducts.
3. COMPUTERIZED HIGH EFFICIENCY DESIGN — All Simsite® impellers and parts are precision machined which increases accuracy and efficiency. Impeller vane shapes are contoured for maximum performance and efficiency.
4. EXCEPTIONAL MECHANICAL STRENGTH — The extraordinary high strength of Simsite® enables it to replace metal impellers which are subject to corrosion and erosion.
5. TIGHTER SEALS — Simsite® casing rings and wear rings will not gall or seize like metal rings. Therefore, Simsite® Rings can operate with a tighter clearance, permitting less leakage through the rings and increasing pump efficiency. Additionally, Simsite® casing and wear rings seal the casing. This prevents the "wash out" of the casing ring areas that is a common maintenance problem with centrifugal pumps.
Simsite® Impellers — Perfect for Retrofit & Replacement Applications
1. LIGHTWEIGHT — 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 and mechanical seal life, and less shaft deflection.
2. 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.
3. SIMSITE IMPELLERS — 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.